/* ==========================================================================
   tokens.css — Design System Tokens
   Tüm renkler, tipografi, spacing bu dosyadan gelir.
   Hiçbir bileşen dosyasında hard-coded değer kullanılmaz.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Dark Mode (Varsayılan)
   -------------------------------------------------------------------------- */
:root {
  /* Renkler */
  --color-bg:               #0a0a0a;
  --color-bg-elevated:      #111111;
  --color-bg-subtle:        #161616;
  --color-surface:          #1a1a1a;
  --color-surface-hover:    #222222;
  --color-border:           #2a2a2a;
  --color-border-subtle:    #1f1f1f;

  --color-text-primary:     #f0f0f0;
  --color-text-secondary:   #888888;
  --color-text-muted:       #555555;
  --color-text-inverse:     #0a0a0a;

  --color-accent:           #4fffb0;   /* Elektrik yeşili — ana vurgu */
  --color-accent-dim:       rgba(79, 255, 176, 0.12);
  --color-accent-border:    rgba(79, 255, 176, 0.3);

  /* Özel efektler */
  --color-glow:             rgba(79, 255, 176, 0.15);
  --color-overlay:          rgba(0, 0, 0, 0.7);

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md:  0 4px 16px rgba(0, 0, 0, 0.5);
  --shadow-lg:  0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-accent: 0 0 20px rgba(79, 255, 176, 0.2);

  /* Tema geçiş animasyonu */
  --theme-transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* --------------------------------------------------------------------------
   Light Mode
   -------------------------------------------------------------------------- */
[data-theme="light"] {
  --color-bg:               #fafafa;
  --color-bg-elevated:      #ffffff;
  --color-bg-subtle:        #f4f4f4;
  --color-surface:          #ffffff;
  --color-surface-hover:    #f0f0f0;
  --color-border:           #e0e0e0;
  --color-border-subtle:    #ebebeb;

  --color-text-primary:     #111111;
  --color-text-secondary:   #555555;
  --color-text-muted:       #999999;
  --color-text-inverse:     #fafafa;

  --color-accent:           #00c47a;   /* Light modda biraz koyu yeşil — kontrast için */
  --color-accent-dim:       rgba(0, 196, 122, 0.08);
  --color-accent-border:    rgba(0, 196, 122, 0.25);

  --color-glow:             rgba(0, 196, 122, 0.1);
  --color-overlay:          rgba(255, 255, 255, 0.8);

  --shadow-sm:  0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md:  0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg:  0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-accent: 0 0 20px rgba(0, 196, 122, 0.15);
}

/* --------------------------------------------------------------------------
   Tipografi
   -------------------------------------------------------------------------- */
:root {
  /* Font aileleri */
  --font-display: 'Playfair Display', 'Georgia', serif;
  --font-body:    'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-mono:    'IBM Plex Mono', 'Fira Code', 'Courier New', monospace;

  /* Font boyutları — fluid scale */
  --text-xs:   clamp(0.7rem,  0.65rem  + 0.25vw, 0.8rem);
  --text-sm:   clamp(0.85rem, 0.8rem   + 0.25vw, 0.95rem);
  --text-base: clamp(1rem,    0.95rem  + 0.25vw, 1.1rem);
  --text-lg:   clamp(1.1rem,  1rem     + 0.5vw,  1.25rem);
  --text-xl:   clamp(1.25rem, 1.1rem   + 0.75vw, 1.5rem);
  --text-2xl:  clamp(1.5rem,  1.25rem  + 1.25vw, 2rem);
  --text-3xl:  clamp(2rem,    1.5rem   + 2.5vw,  3rem);
  --text-4xl:  clamp(2.5rem,  1.75rem  + 3.75vw, 4rem);
  --text-5xl:  clamp(3rem,    2rem     + 5vw,    5.5rem);

  /* Font ağırlıkları */
  --weight-regular: 400;
  --weight-medium:  500;
  --weight-semibold: 600;
  --weight-bold:    700;

  /* Satır yüksekliği */
  --leading-tight:  1.2;
  --leading-snug:   1.4;
  --leading-normal: 1.6;
  --leading-relaxed: 1.8;

  /* Harf aralığı */
  --tracking-tight:  -0.03em;
  --tracking-normal:  0em;
  --tracking-wide:    0.05em;
  --tracking-wider:   0.1em;
  --tracking-widest:  0.2em;
}

/* --------------------------------------------------------------------------
   Spacing
   -------------------------------------------------------------------------- */
:root {
  --space-1:  0.25rem;   /*  4px */
  --space-2:  0.5rem;    /*  8px */
  --space-3:  0.75rem;   /* 12px */
  --space-4:  1rem;      /* 16px */
  --space-5:  1.25rem;   /* 20px */
  --space-6:  1.5rem;    /* 24px */
  --space-8:  2rem;      /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */
  --space-24: 6rem;      /* 96px */
  --space-32: 8rem;      /* 128px */
  --space-40: 10rem;     /* 160px */
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
:root {
  --max-width:     1200px;
  --content-width: 720px;
  --sidebar-width: 300px;

  /* Border radius */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  20px;
  --radius-full: 9999px;

  /* Border */
  --border-width: 1px;
  --border: var(--border-width) solid var(--color-border);
}

/* --------------------------------------------------------------------------
   Animasyonlar
   -------------------------------------------------------------------------- */
:root {
  --duration-fast:    150ms;
  --duration-normal:  250ms;
  --duration-slow:    400ms;
  --duration-slower:  600ms;

  --ease-out:     cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:  cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring:  cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* prefers-reduced-motion: animasyonları kapat */
@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast:   0ms;
    --duration-normal: 0ms;
    --duration-slow:   0ms;
    --duration-slower: 0ms;
  }
}
/* ==========================================================================
   base.css — Reset, Global Stiller, Tipografi
   ========================================================================== */

/* --------------------------------------------------------------------------
   Google Fonts Import
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;1,400&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* --------------------------------------------------------------------------
   Modern CSS Reset
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  transition: var(--theme-transition);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

ul[role="list"], ol[role="list"] {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* --------------------------------------------------------------------------
   Tipografi — Heading sınıfları
   -------------------------------------------------------------------------- */
.text-display {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

.text-heading-1 {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

.text-heading-2 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight);
}

.text-heading-3 {
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-snug);
}

.text-body {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}

.text-mono {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

.text-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.text-accent {
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Selection
   -------------------------------------------------------------------------- */
::selection {
  background-color: var(--color-accent-dim);
  color: var(--color-text-primary);
}

/* --------------------------------------------------------------------------
   Scrollbar
   -------------------------------------------------------------------------- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Focus — Erişilebilirlik
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-10);
  }
}

@media (min-width: 1200px) {
  .container {
    padding-inline: var(--space-16);
  }
}
/* ==========================================================================
   layout.css — Navigasyon, Section düzeni, Footer
   ========================================================================== */

/* --------------------------------------------------------------------------
   Navbar
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-block: var(--space-4);
  transition: var(--theme-transition), backdrop-filter var(--duration-normal) var(--ease-out);
}

.navbar.scrolled {
  background-color: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: var(--border);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.navbar__logo {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wide);
  transition: opacity var(--duration-fast);
}

.navbar__logo:hover {
  opacity: 0.7;
}

.navbar__nav {
  display: none;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

@media (min-width: 768px) {
  .navbar__nav {
    display: flex;
  }
}

.navbar__nav a {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  letter-spacing: var(--tracking-wide);
  transition: color var(--duration-fast);
  position: relative;
}

.navbar__nav a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--duration-normal) var(--ease-out);
}

.navbar__nav a:hover {
  color: var(--color-text-primary);
}

.navbar__nav a:hover::after {
  width: 100%;
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* --------------------------------------------------------------------------
   Section Genel Düzen
   -------------------------------------------------------------------------- */
.section {
  padding-block: var(--space-24);
}

@media (min-width: 768px) {
  .section {
    padding-block: var(--space-32);
  }
}

.section__header {
  margin-bottom: var(--space-16);
}

.section__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.section__label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--color-accent);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
}

/* --------------------------------------------------------------------------
   Divider
   -------------------------------------------------------------------------- */
.divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  margin-block: var(--space-8);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  border-top: var(--border);
  padding-block: var(--space-8);
  margin-top: var(--space-16);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

@media (min-width: 640px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer__links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
}

.footer__links a {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}

.footer__links a:hover {
  color: var(--color-accent);
}
/* ==========================================================================
   buttons.css — Buton Stilleri
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius-md);
  border: var(--border-width) solid transparent;
  transition:
    background-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-spring);
  white-space: nowrap;
  cursor: pointer;
}

.btn:active {
  transform: scale(0.97);
}

/* Primary */
.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  box-shadow: var(--shadow-accent);
  filter: brightness(1.1);
}

/* Outline */
.btn--outline {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: var(--color-accent-dim);
}

/* Ghost */
.btn--ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
}

.btn--ghost:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-text-primary);
}

/* Icon button */
.btn--icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
  border: var(--border);
  color: var(--color-text-secondary);
  background: transparent;
  transition:
    border-color var(--duration-fast),
    color var(--duration-fast),
    background-color var(--duration-fast);
}

.btn--icon:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-dim);
}

.btn--icon svg {
  width: 18px;
  height: 18px;
  display: block;
  margin: auto;
}

/* Boyutlar */
.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}
/* ==========================================================================
   hero.css — Hero Section
   ========================================================================== */

.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--space-24);
  padding-bottom: var(--space-16);
  position: relative;
  overflow: hidden;
}

/* Arka plan grid deseni */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border-subtle) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border-subtle) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

/* Durum etiketi — "Praktikum arıyor" */
.hero__status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  margin-bottom: var(--space-8);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-full);
  background: var(--color-accent-dim);
  width: fit-content;
}

.hero__status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.8); }
}

/* İsim */
.hero__name {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

/* Tagline */
.hero__tagline {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
}

.hero__tagline em {
  font-style: italic;
  color: var(--color-accent);
}

/* Açıklama */
.hero__description {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  max-width: 560px;
  margin-bottom: var(--space-12);
}

/* CTA butonları */
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-16);
}

/* Sosyal linkler */
.hero__social {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.hero__social-link {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: color var(--duration-fast);
}

.hero__social-link:hover {
  color: var(--color-accent);
}

.hero__social-link svg {
  width: 16px;
  height: 16px;
}

/* Scroll indikatör */
.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}
/* ==========================================================================
   praktikum-callout.css — Hero sonrası pratikum durum şeridi
   ========================================================================== */

.praktikum-callout {
  border-top: 1px solid var(--color-accent-border);
  border-bottom: 1px solid var(--color-accent-border);
  background: linear-gradient(
    135deg,
    var(--color-accent-dim) 0%,
    transparent 60%
  );
  padding: var(--space-6) 0;
  position: relative;
  overflow: hidden;
}

/* Üst border boyunca süzülen ışık taraması */
.praktikum-callout::after {
  content: '';
  position: absolute;
  top: -1px;
  left: -40%;
  width: 40%;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--color-accent) 50%, transparent 100%);
  box-shadow: 0 0 8px var(--color-accent), 0 0 16px var(--color-accent);
  animation: callout-scan 3.5s linear infinite;
  pointer-events: none;
}

@keyframes callout-scan {
  to { left: 140%; }
}

@media (prefers-reduced-motion: reduce) {
  .praktikum-callout::after { animation: none; }
}

/* Arka plan glow efekti */
.praktikum-callout::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 60% 100% at 0% 50%,
    var(--color-glow),
    transparent
  );
  pointer-events: none;
}

.praktikum-callout__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  position: relative;
}

@media (min-width: 768px) {
  .praktikum-callout__inner {
    flex-direction: row;
    align-items: center;
    gap: var(--space-8);
  }
}

/* Durum dot + içerik bloğu */
.praktikum-callout__status,
.praktikum-callout__info {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  flex: 1;
}

/* Yanıp sönen yeşil nokta */
.praktikum-callout__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
  margin-top: 5px;
  box-shadow: 0 0 8px var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

.praktikum-callout__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}

.praktikum-callout__value {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.praktikum-callout__since {
  font-size: var(--text-xs);
  font-weight: var(--weight-regular);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

/* Dikey ayraç — sadece desktop */
.praktikum-callout__divider {
  display: none;
}

@media (min-width: 768px) {
  .praktikum-callout__divider {
    display: block;
    width: 1px;
    height: 40px;
    background: var(--color-accent-border);
    flex-shrink: 0;
  }
}

/* CTA butonu — sağa yasla */
.praktikum-callout__cta {
  flex-shrink: 0;
  align-self: flex-start;
}

@media (min-width: 768px) {
  .praktikum-callout__cta {
    margin-left: auto;
    align-self: center;
  }
}
/* ==========================================================================
   about.css — Hakkımda Section
   ========================================================================== */

.about {
  background-color: var(--color-bg-subtle);
  border-top: var(--border);
  border-bottom: var(--border);
}

.about__grid {
  display: grid;
  gap: var(--space-12);
}

@media (min-width: 768px) {
  .about__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
  }
}

.about__text p {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.about__text p:last-child {
  margin-bottom: 0;
}

.about__text strong {
  color: var(--color-text-primary);
  font-weight: var(--weight-semibold);
}

/* Bilgi kartları */
.about__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.about__info-card {
  padding: var(--space-5) var(--space-6);
  background: var(--color-surface);
  border: var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  transition:
    border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

.about__info-card:hover {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-md);
}

.about__info-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  background: var(--color-accent-dim);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.about__info-icon svg {
  width: 18px;
  height: 18px;
}

.about__info-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}

.about__info-value {
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  font-weight: var(--weight-medium);
}

/* Diller */
.about__languages {
  margin-top: var(--space-4);
}

.about__lang-item {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  margin-bottom: var(--space-5);
}

.about__lang-name {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.about__lang-level {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  white-space: nowrap;
  grid-column: 2;
  grid-row: 1;
  align-self: start;
  text-align: right;
}

.about__lang-bar {
  grid-column: 1 / -1;
  grid-row: 2;
  height: 4px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  margin-top: var(--space-2);
  overflow: hidden;
}

.about__lang-fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transform-origin: left;
  transform: scaleX(0);
  animation: grow-bar 0.8s var(--ease-out) forwards;
}

@keyframes grow-bar {
  to { transform: scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
  .about__lang-fill { animation: none; transform: scaleX(1); }
}

/* ── Praktikum kartı — kademeli 4 noktalı kuyruk ───────────────────────── */
.about__info-card--praktikum {
  position: relative;
  border-color: var(--color-accent-border);
}

.about__info-card--praktikum:hover {
  box-shadow: var(--shadow-md);
}

/* 4 noktanın ortak stilleri */
.about__info-card--praktikum::before,
.about__info-card--praktikum::after,
.about__trail-dot {
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
  offset-path: inset(0 round var(--radius-lg));
  offset-distance: 0%;
  offset-anchor: center;
  animation: dot-travel 5s linear infinite;
  pointer-events: none;
}

.about__info-card--praktikum::before,
.about__info-card--praktikum::after {
  content: '';
}

/* Nokta 1 — en sönük (en geride) */
.about__info-card--praktikum::before {
  opacity: 0.04;
  filter: blur(2.5px);
  animation-delay: 0s;
}

/* Nokta 2 */
.about__trail-dot:nth-child(1) {
  opacity: 0.08;
  filter: blur(2px);
  animation-delay: -0.015s;
}

/* Nokta 3 */
.about__trail-dot:nth-child(2) {
  opacity: 0.14;
  filter: blur(1.5px);
  animation-delay: -0.03s;
}

/* Nokta 4 */
.about__trail-dot:nth-child(3) {
  opacity: 0.22;
  filter: blur(1px);
  animation-delay: -0.045s;
}

/* Nokta 5 */
.about__trail-dot:nth-child(4) {
  opacity: 0.32;
  filter: blur(0.8px);
  animation-delay: -0.06s;
}

/* Nokta 6 */
.about__trail-dot:nth-child(5) {
  opacity: 0.45;
  filter: blur(0.5px);
  animation-delay: -0.075s;
}

/* Nokta 7 */
.about__trail-dot:nth-child(6) {
  opacity: 0.58;
  filter: blur(0.3px);
  animation-delay: -0.09s;
}

/* Nokta 8 */
.about__trail-dot:nth-child(7) {
  opacity: 0.72;
  animation-delay: -0.105s;
}

/* Nokta 9 */
.about__trail-dot:nth-child(8) {
  opacity: 0.86;
  animation-delay: -0.12s;
}

/* Nokta 10 — en parlak (önde) */
.about__info-card--praktikum::after {
  opacity: 1;
  box-shadow: 0 0 5px 2px var(--color-accent);
  animation-delay: -0.135s;
}

@keyframes dot-travel {
  to { offset-distance: 100%; }
}

/* ==========================================================================
   certs.css — Sertifikalar Marquee
   ========================================================================== */

/* Kayan şerit */
.certs-marquee {
  overflow: hidden;
}

/* Track — iki set yan yana, animation burada */
.certs-marquee__track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 16s linear infinite;
  will-change: transform;
}

/* Her set kendi içinde flex, trailing padding gap'i kopyalar */
.certs-marquee__set {
  display: flex;
  gap: var(--space-4);
  padding-right: var(--space-4);
}

.certs-marquee.is-paused .certs-marquee__track {
  animation-play-state: paused;
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .certs-marquee__track { animation-duration: 60s; }
}

/* -------------------------------------------------------------------------
   Rozet kartı
   ------------------------------------------------------------------------- */
.cert-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0;
  padding: var(--space-5) var(--space-4);
  width: 155px;
  flex-shrink: 0;
  background: var(--color-surface);
  border: var(--border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition:
    border-color var(--duration-fast),
    box-shadow var(--duration-fast);
}

.cert-badge:hover {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-sm);
}

/* Görsel alanı — kartın üst yarısı */
.cert-badge__image {
  width: 120px;
  height: 120px;
  object-fit: contain;
  flex-shrink: 0;
}

.cert-badge__icon {
  width: 64px;
  height: 64px;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* Metin alanı — kartın alt yarısı, görsel ile eşit */
.cert-badge > div {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-2);
  padding-top: var(--space-4);
}

.cert-badge__name {
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
  line-height: var(--leading-snug);
}

.cert-badge__provider {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wide);
}

.cert-badge__date {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* -------------------------------------------------------------------------
   Devam eden sertifika
   ------------------------------------------------------------------------- */
.cert-badge--in-progress {
  position: relative;
  overflow: hidden;
}

.cert-badge--in-progress .cert-badge__image {
  filter: grayscale(100%);
  opacity: 0.45;
  transition: opacity var(--duration-normal), filter var(--duration-normal);
}

.cert-badge--in-progress .cert-badge__name,
.cert-badge--in-progress .cert-badge__date {
  opacity: 0.45;
  transition: opacity var(--duration-normal);
}

.cert-badge__progress-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(10, 10, 10, 0.82);
  opacity: 0;
  transition: opacity var(--duration-normal);
  border-radius: inherit;
  pointer-events: none;
}

.cert-badge--in-progress:hover .cert-badge__progress-overlay {
  opacity: 1;
}

.cert-badge--in-progress:hover .cert-badge__image {
  opacity: 0.2;
  filter: grayscale(100%);
}

.cert-badge--in-progress:hover .cert-badge__name,
.cert-badge--in-progress:hover .cert-badge__date {
  opacity: 0.2;
}
/* ==========================================================================
   skills.css — Yetenekler Section
   ========================================================================== */

.skills__grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .skills__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .skills__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Kategori kartı */
.skill-category {
  padding: var(--space-6);
  background: var(--color-surface);
  border: var(--border);
  border-radius: var(--radius-lg);
  transition:
    border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

.skill-category:hover {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-md);
}

.skill-category__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: var(--border);
}

.skill-category__icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  color: var(--color-accent);
}

.skill-category__title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

/* Chip'ler */
.skill-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.chip {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  background: var(--color-bg-subtle);
  white-space: nowrap;
  transition:
    border-color var(--duration-fast),
    color var(--duration-fast),
    background-color var(--duration-fast);
}

.chip:hover {
  border-color: var(--color-accent-border);
  color: var(--color-accent);
  background: var(--color-accent-dim);
}

.chip--accent {
  border-color: var(--color-accent-border);
  color: var(--color-accent);
  background: var(--color-accent-dim);
}
/* ==========================================================================
   projects.css — Projeler Section
   ========================================================================== */

.projects {
  background-color: var(--color-bg-subtle);
  border-top: var(--border);
  border-bottom: var(--border);
}

.projects__grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .projects__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .projects__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Proje kartı */
.project-card {
  background: var(--color-surface);
  border: var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition:
    border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
}

.project-card:hover {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Öne çıkan proje — geniş kart */
.project-card--featured {
  grid-column: 1 / -1;
  flex-direction: row;
  align-items: flex-start;
  padding: var(--space-8);
  border-color: var(--color-accent-border);
  background: linear-gradient(135deg, var(--color-surface), var(--color-accent-dim));
}

@media (max-width: 767px) {
  .project-card--featured {
    flex-direction: column;
  }
}

.project-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
}

.project-card__icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  background: var(--color-accent-dim);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--text-lg);
}

.project-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  line-height: var(--leading-snug);
}

.project-card__description {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  flex: 1;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.project-card__tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.project-card__links {
  display: flex;
  gap: var(--space-3);
  margin-top: auto;
}

.project-card__link {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  transition: color var(--duration-fast);
}

.project-card__link:hover {
  color: var(--color-accent);
}

.project-card__link svg {
  width: 14px;
  height: 14px;
}
/* ==========================================================================
   timeline.css — Zaman Çizelgesi (Deneyim & Eğitim)
   ========================================================================== */

.timeline__list {
  position: relative;
  list-style: none;
}

/* Dikey çizgi */
.timeline__list::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 4px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-border) 80%, transparent);
}

@media (min-width: 768px) {
  .timeline__list::before {
    left: 50%;
    transform: translateX(-50%);
  }
}

.timeline__item {
  position: relative;
  padding-left: var(--space-10);
  padding-bottom: var(--space-10);
}

@media (min-width: 768px) {
  .timeline__item {
    padding-left: 0;
    padding-bottom: var(--space-12);
    width: calc(50% - var(--space-8));
  }

  /* Çift kolonlu — sol/sağ almaşık */
  .timeline__item:nth-child(odd) {
    margin-left: 0;
    margin-right: auto;
    padding-right: var(--space-10);
    text-align: right;
  }

  .timeline__item:nth-child(even) {
    margin-left: auto;
    padding-left: var(--space-10);
    text-align: left;
  }
}

/* Nokta */
.timeline__dot {
  position: absolute;
  left: 4px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  transition: background-color var(--duration-normal), box-shadow var(--duration-normal);
}

.timeline__item:hover .timeline__dot {
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-glow);
}

@media (min-width: 768px) {
  .timeline__item:nth-child(odd) .timeline__dot {
    right: calc(-1 * var(--space-5) - 2px);
    left: auto;
  }

  .timeline__item:nth-child(even) .timeline__dot {
    left: calc(-1 * var(--space-5) - 2px);
  }
}

/* Kart */
.timeline__card {
  background: var(--color-surface);
  border: var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  transition:
    border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

.timeline__item:hover .timeline__card {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-md);
}

/* Aktif / güncel öğe */
.timeline__item--current .timeline__card {
  border-color: var(--color-accent-border);
  background: linear-gradient(135deg, var(--color-surface), var(--color-accent-dim));
}

.timeline__item--current .timeline__dot {
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-glow);
}

.timeline__period {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-2);
}

.timeline__title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.timeline__company {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.timeline__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}

.timeline__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-accent-border);
  color: var(--color-accent);
  background: var(--color-accent-dim);
  margin-top: var(--space-3);
}
/* ==========================================================================
   contact.css — İletişim Section
   ========================================================================== */

.contact {
  background-color: var(--color-bg-subtle);
  border-top: var(--border);
}

.contact__grid {
  display: grid;
  gap: var(--space-12);
}

@media (min-width: 768px) {
  .contact__grid {
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-16);
    align-items: start;
  }
}

/* Sol taraf — metin */
.contact__intro {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  list-style: none;
}

.contact__link-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface);
  border: var(--border);
  border-radius: var(--radius-lg);
  transition:
    border-color var(--duration-fast),
    box-shadow var(--duration-fast),
    transform var(--duration-fast);
}

.contact__link-item:hover {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.contact__link-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  background: var(--color-accent-dim);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.contact__link-icon svg {
  width: 18px;
  height: 18px;
}

.contact__link-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  margin-bottom: 2px;
}

.contact__link-value {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
}

/* İletişim formu */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.contact__form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.contact__form-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.contact__form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: var(--border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
  outline: none;
}

.contact__form-input:focus {
  border-color: var(--color-accent-border);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}

.contact__form-textarea {
  resize: vertical;
  min-height: 120px;
}

.contact__form-success {
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-family: var(--font-mono);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-md);
  background: var(--color-accent-dim);
}

/* Sağ taraf — pratikum bilgi kartı */
.contact__praktikum {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-surface), var(--color-accent-dim));
}

.contact__praktikum-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-full);
  background: var(--color-accent-dim);
  width: fit-content;
  margin-bottom: var(--space-5);
}

.contact__praktikum-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

.contact__praktikum-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.contact__praktikum-text {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.contact__praktikum-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.contact__praktikum-detail {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.contact__praktikum-detail::before {
  content: '→';
  color: var(--color-accent);
  font-family: var(--font-mono);
  flex-shrink: 0;
}
/* ==========================================================================
   chatbot.css — AI Chatbot Widget
   ========================================================================== */

.chatbot {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 200;
  font-family: var(--font-body);
}

/* Toggle butonu */
.chatbot__toggle {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-accent), var(--shadow-lg);
  transition:
    transform var(--duration-normal) var(--ease-spring),
    box-shadow var(--duration-normal) var(--ease-out);
}

.chatbot__toggle:hover {
  transform: scale(1.08);
  box-shadow: 0 0 30px rgba(79, 255, 176, 0.35), var(--shadow-lg);
}

.chatbot__toggle:active {
  transform: scale(0.95);
}

.chatbot__toggle-icon {
  width: 22px;
  height: 22px;
  transition: opacity var(--duration-fast), transform var(--duration-normal) var(--ease-spring);
}

.chatbot__toggle-icon[hidden] {
  display: none;
}

/* Chat penceresi */
.chatbot__window {
  position: absolute;
  bottom: calc(100% + var(--space-4));
  right: 0;
  width: 360px;
  max-width: calc(100vw - var(--space-12));
  max-height: 520px;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: slide-up var(--duration-normal) var(--ease-out);
}

.chatbot__window[hidden] {
  display: none;
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Header */
.chatbot__header {
  padding: var(--space-4) var(--space-5);
  border-bottom: var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-bg-elevated);
  flex-shrink: 0;
}

.chatbot__header-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.chatbot__avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.chatbot__name {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
}

.chatbot__status {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-accent);
  letter-spacing: var(--tracking-wide);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.chatbot__status::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

/* Mesajlar */
.chatbot__messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  scroll-behavior: smooth;
}

.chatbot__message {
  max-width: 85%;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  animation: message-in var(--duration-normal) var(--ease-out);
}

@keyframes message-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.chatbot__message--bot {
  background: var(--color-bg-subtle);
  border: var(--border);
  color: var(--color-text-primary);
  align-self: flex-start;
  border-bottom-left-radius: var(--radius-sm);
}

.chatbot__message--user {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  align-self: flex-end;
  border-bottom-right-radius: var(--radius-sm);
}

/* Yükleniyor noktaları */
.chatbot__message--loading {
  background: var(--color-bg-subtle);
  border: var(--border);
  align-self: flex-start;
  padding: var(--space-4);
}

.chatbot__dots {
  display: flex;
  gap: 4px;
  align-items: center;
}

.chatbot__dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-text-muted);
  animation: dot-bounce 1.2s ease-in-out infinite;
}

.chatbot__dots span:nth-child(2) { animation-delay: 0.2s; }
.chatbot__dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes dot-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50%       { transform: translateY(-4px); opacity: 1; }
}

/* Input alanı */
.chatbot__input-area {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-top: var(--border);
  background: var(--color-bg-elevated);
  flex-shrink: 0;
}

.chatbot__input {
  flex: 1;
  background: var(--color-bg-subtle);
  border: var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  outline: none;
  transition: border-color var(--duration-fast);
}

.chatbot__input:focus {
  border-color: var(--color-accent-border);
}

.chatbot__input::placeholder {
  color: var(--color-text-muted);
}

.chatbot__input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.chatbot__send {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    opacity var(--duration-fast),
    transform var(--duration-fast) var(--ease-spring);
}

.chatbot__send:hover:not(:disabled) {
  transform: scale(1.08);
}

.chatbot__send:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.chatbot__send svg {
  width: 16px;
  height: 16px;
}
/* ==========================================================================
   praktikum.css — Praktikum Bilgi Sayfası
   ========================================================================== */

/* Breadcrumb */
.praktikum-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
}

.praktikum-breadcrumb a {
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}

.praktikum-breadcrumb a:hover {
  color: var(--color-accent);
}

/* Sayfa başlığı */
.praktikum-header {
  margin-bottom: var(--space-12);
  max-width: 720px;
}

.praktikum-title {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  margin-top: var(--space-3);
}

.praktikum-title em {
  font-style: italic;
  color: var(--color-accent);
}

.praktikum-subtitle {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}

/* -------------------------------------------------------------------------
   Info Box
   ------------------------------------------------------------------------- */
.praktikum-infobox {
  background: var(--color-surface);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  margin-bottom: var(--space-8);
  position: relative;
  overflow: hidden;
}

/* Sol kenar çizgisi */
.praktikum-infobox::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-accent);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.praktikum-infobox__header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: var(--border);
}

.praktikum-infobox__icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--color-accent-dim);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.praktikum-infobox__title {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  line-height: var(--leading-snug);
}

/* Fact listesi */
.praktikum-facts {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.praktikum-fact {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.praktikum-fact__icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.praktikum-fact__icon--green {
  background: rgba(79, 255, 176, 0.1);
  color: var(--color-accent);
}

.praktikum-fact__icon--accent {
  background: rgba(255, 165, 0, 0.1);
  color: #ffa500;
}

[data-theme="light"] .praktikum-fact__icon--green {
  background: rgba(0, 196, 122, 0.1);
  color: var(--color-accent);
}

.praktikum-fact strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.praktikum-fact p {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}

.praktikum-fact__note {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-style: italic;
  margin-top: var(--space-1);
}

.praktikum-infobox__footer {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: var(--border);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-style: italic;
}

/* -------------------------------------------------------------------------
   Meta kartlar (zaman, yer, vb.)
   ------------------------------------------------------------------------- */
.praktikum-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

@media (min-width: 640px) {
  .praktikum-meta {
    grid-template-columns: repeat(4, 1fr);
  }
}

.praktikum-meta__card {
  background: var(--color-surface);
  border: var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
}

.praktikum-meta__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.praktikum-meta__value {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  line-height: var(--leading-snug);
}

.praktikum-meta__value--accent {
  color: var(--color-accent);
}

/* -------------------------------------------------------------------------
   CTA Butonlar
   ------------------------------------------------------------------------- */
.praktikum-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

/* -------------------------------------------------------------------------
   PDF Viewer
   ------------------------------------------------------------------------- */
.praktikum-pdf {
  border: var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: var(--space-16);
}

.praktikum-pdf__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--color-bg-elevated);
  border-bottom: var(--border);
}

.praktikum-pdf__title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
}

.praktikum-pdf__viewer {
  background: var(--color-bg-subtle);
  min-height: 600px;
}

.praktikum-pdf__embed {
  width: 100%;
  height: 780px;
  border: none;
  display: block;
}

/* Fallback — PDF gösterilemediğinde */
.praktikum-pdf__fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-16);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  min-height: 300px;
}

@media (max-width: 640px) {
  .praktikum-pdf__embed {
    height: 500px;
  }
}