/* ============================================================
   PROF. DR. MURAT İLHAN ATAGÜN — Personal Website
   Design: Modern & Scientific | Dark-first | TR+EN
   ============================================================ */

/* ---- DESIGN TOKENS ---- */
:root {
  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-hero: clamp(2.8rem,   1rem    + 5vw,    6rem);

  /* Spacing */
  --space-1: 0.25rem; --space-2: 0.5rem;  --space-3: 0.75rem;
  --space-4: 1rem;    --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem;    --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem;   --space-20: 5rem;   --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1.25rem;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition: 200ms var(--ease-out);

  /* Content widths */
  --content-default: 1100px;
  --content-wide: 1320px;

  /* Fonts */
  --font-display: 'DM Serif Display', 'Georgia', serif;
  --font-body: 'Cabinet Grotesk', 'Inter', sans-serif;
}

/* ---- DARK MODE (default) ---- */
:root, [data-theme="dark"] {
  --color-bg:              #0b0d11;
  --color-surface:         #10131a;
  --color-surface-2:       #151821;
  --color-surface-offset:  #1a1e28;
  --color-border:          #252a38;
  --color-divider:         #1e2230;
  --color-text:            #d8dae6;
  --color-text-muted:      #6e7490;
  --color-text-faint:      #3a3f55;
  --color-primary:         #4db8c8;
  --color-primary-hover:   #72cbd8;
  --color-primary-active:  #2a9aab;
  --color-accent:          #7ee8f0;
  --color-accent-dim:      rgba(78,184,200,0.12);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
}

/* ---- LIGHT MODE ---- */
[data-theme="light"] {
  --color-bg:              #f5f6f9;
  --color-surface:         #ffffff;
  --color-surface-2:       #f0f2f7;
  --color-surface-offset:  #e8eaf0;
  --color-border:          #d4d8e8;
  --color-divider:         #dde0ec;
  --color-text:            #141822;
  --color-text-muted:      #5a6080;
  --color-text-faint:      #aab0cc;
  --color-primary:         #0a7e8e;
  --color-primary-hover:   #0d6a78;
  --color-primary-active:  #0b5562;
  --color-accent:          #0a7e8e;
  --color-accent-dim:      rgba(10,126,142,0.10);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.09);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg: #f5f6f9;
    --color-surface: #ffffff;
    --color-surface-2: #f0f2f7;
    --color-surface-offset: #e8eaf0;
    --color-border: #d4d8e8;
    --color-divider: #dde0ec;
    --color-text: #141822;
    --color-text-muted: #5a6080;
    --color-text-faint: #aab0cc;
    --color-primary: #0a7e8e;
    --color-primary-hover: #0d6a78;
    --color-accent: #0a7e8e;
    --color-accent-dim: rgba(10,126,142,0.10);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.07);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.09);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
  }
}

/* ============================================================
   BASE RESET
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-padding-top: 80px;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.65;
  transition: background-color 0.3s ease, color 0.3s ease;
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4, h5, h6 { text-wrap: balance; line-height: 1.2; }
p, li, figcaption { text-wrap: pretty; max-width: 70ch; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; background: none; border: none; }

::selection { background: var(--color-accent-dim); color: var(--color-text); }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   LAYOUT HELPERS
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 5vw, var(--space-12));
}

.section {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section-header {
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}

.section-header.center { text-align: center; }
.section-header.center p { margin-inline: auto; }

.section-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-header p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  height: 68px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  flex-shrink: 0;
  transition: color var(--transition);
}
.logo:hover { color: var(--color-primary); }

.logo svg { flex-shrink: 0; }

.logo-text {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

/* Main nav */
.main-nav {
  margin-left: auto;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: var(--space-2);
}

.main-nav a {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  transition: color var(--transition), background var(--transition);
}
.main-nav a:hover {
  color: var(--color-text);
  background: var(--color-accent-dim);
}

/* Header controls */
.header-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full, 9999px);
  color: var(--color-text-muted);
  transition: color var(--transition), border-color var(--transition);
  background: none;
  cursor: pointer;
}
.lang-toggle:hover { color: var(--color-text); border-color: var(--color-primary); }
.lang-toggle .lang-tr,
.lang-toggle .lang-en { transition: color var(--transition); }
.lang-toggle .lang-tr.active,
.lang-toggle .lang-en.active { color: var(--color-primary); }
.lang-toggle .lang-sep { color: var(--color-text-faint); margin-inline: 2px; }

.theme-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition), background var(--transition);
  border: 1px solid var(--color-border);
}
.theme-btn:hover { color: var(--color-primary); background: var(--color-accent-dim); }

/* Hamburger */
.menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: var(--space-2);
}
.menu-btn span {
  display: block;
  height: 1.5px;
  background: var(--color-text-muted);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.2s;
}
.menu-btn:hover span { background: var(--color-text); }
.menu-btn.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.menu-btn.open span:nth-child(2) { opacity: 0; }
.menu-btn.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 68px 0 0;
  background: var(--color-bg);
  z-index: 99;
  padding: var(--space-8) clamp(var(--space-5), 5vw, var(--space-12));
  border-top: 1px solid var(--color-divider);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s var(--ease-out), opacity 0.3s ease;
}
.mobile-nav.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}
.mobile-nav ul { list-style: none; }
.mobile-nav li { border-bottom: 1px solid var(--color-divider); }
.mobile-nav a {
  display: block;
  padding: var(--space-5) 0;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.mobile-nav a:hover { color: var(--color-primary); }

/* Mobile nav inner layout */
.mobile-nav-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  height: 100%;
  overflow-y: auto;
}

.mobile-nav-links ul {
  list-style: none;
}

.mobile-nav-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
}

.mobile-nav-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mobile-nav-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.mobile-nav-chips {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav-chips li span {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  line-height: 1.45;
}

.mobile-nav-email {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: color-mix(in srgb, var(--color-primary) 40%, transparent);
  transition: text-decoration-color var(--transition);
}
.mobile-nav-email:hover {
  text-decoration-color: var(--color-primary);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.55;
  filter: saturate(0.8);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--color-bg) 0%,
    color-mix(in srgb, var(--color-bg) 70%, transparent) 50%,
    color-mix(in srgb, var(--color-bg) 30%, transparent) 100%
  );
}

[data-theme="light"] .hero-img { opacity: 0.35; }
[data-theme="light"] .hero-overlay {
  background: linear-gradient(
    135deg,
    var(--color-bg) 0%,
    color-mix(in srgb, var(--color-bg) 75%, transparent) 60%,
    color-mix(in srgb, var(--color-bg) 35%, transparent) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-block: var(--space-20);
  max-width: 680px;
}

.hero-tag {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 1rem + 4vw, 5rem);
  line-height: 1.05;
  color: var(--color-text);
  margin-bottom: var(--space-5);
}

.hero-name-full {
  display: block;
  color: var(--color-text);
}

.hero-name-suffix {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

.hero-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-10);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  letter-spacing: 0.02em;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--color-primary);
  color: #0b0d11;
  border: 1px solid var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: 0 0 24px color-mix(in srgb, var(--color-primary) 30%, transparent);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-accent-dim);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: clamp(var(--space-10), 6vw, var(--space-20));
  align-items: start;
}

.about-photo-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  position: sticky;
  top: 100px;
}

.about-photo-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  aspect-ratio: 3/4;
  display: flex;
  align-items: center;
  justify-content: center;
}

.photo-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-8);
  text-align: center;
  color: var(--color-text-faint);
}
.photo-hint {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-style: italic;
}

/* Fotoğraf eklendiğinde */
.about-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius-xl);
}

.about-badge {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  text-align: center;
}
.badge-num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-primary);
  line-height: 1;
  margin-top: var(--space-1);
}
.badge-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: block;
  margin-bottom: var(--space-1);
}
.badge-divider {
  height: 1px;
  background: var(--color-divider);
  margin-block: var(--space-3);
}
.badge-sub {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
  font-weight: 500;
}

.about-text-col h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.about-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.about-body p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.75;
}

/* ============================================================
   TREATMENTS
   ============================================================ */
.treatments-section {
  position: relative;
  background: var(--color-surface);
  overflow: hidden;
}

.tms-visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.tms-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  opacity: 0.15;
}

[data-theme="light"] .tms-img { opacity: 0.08; }

.tms-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--color-surface) 40%, transparent);
}

.treatments-section .container { position: relative; z-index: 1; }

.treatments-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

@media (max-width: 640px) {
  .treatments-grid {
    grid-template-columns: 1fr;
  }
}

.treatment-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.treatment-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-md);
  transform: translateY(-2px);
}
.treatment-card.featured {
  border-color: color-mix(in srgb, var(--color-primary) 40%, transparent);
  background: color-mix(in srgb, var(--color-surface) 60%, var(--color-accent-dim));
}

.card-icon {
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.treatment-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.card-full-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  letter-spacing: 0.01em;
}

.treatment-card p:last-child {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.card-img {
  width: calc(100% + var(--space-8) * 2);
  margin: calc(var(--space-8) * -1) calc(var(--space-8) * -1) var(--space-6);
  height: 200px;
  object-fit: cover;
  object-position: center center;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  opacity: 0.9;
  transition: opacity var(--transition);
  background: #1a1f2e;
}
.treatment-card:hover .card-img {
  opacity: 1;
}
/* Ürün görseli olan kartlar için arka plan rengi */
.treatment-card img[src="img_magventure.jpg"] {
  object-position: center 30%;
  background: #111418;
}
.treatment-card img[src="img_neuroconn.png"] {
  object-fit: contain;
  object-position: center center;
  background: #eef1f5;
}
.treatment-card img[src="img_asa_mri.png"],
.treatment-card img[src="img_asa_eeg.png"] {
  object-position: center top;
}

/* ============================================================
   RESEARCH
   ============================================================ */
.research-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-10);
  align-items: start;
}

.research-visual {
  position: sticky;
  top: 100px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.research-visual img {
  width: 100%;
  display: block;
}

.research-visual-caption {
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
  border-top: 1px solid var(--color-border);
}

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

@media (max-width: 900px) {
  .research-layout {
    grid-template-columns: 1fr;
  }
  .research-visual {
    position: static;
    order: -1;
  }
}

.research-item {
  display: flex;
  gap: var(--space-5);
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition);
}
.research-item:hover { border-color: var(--color-primary); }

.research-num {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-text-faint);
  line-height: 1;
  flex-shrink: 0;
  padding-top: 2px;
  width: 2ch;
}

.research-item h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.research-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================================
   CV
   ============================================================ */
.cv-section { background: var(--color-surface); }

.cv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: clamp(var(--space-8), 4vw, var(--space-16));
}

.cv-col-title {
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-divider);
}

.cv-list { display: flex; flex-direction: column; gap: var(--space-5); }

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

.cv-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
  margin-top: 6px;
}

.cv-item strong {
  display: block;
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.cv-meta {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

/* Tags */
.tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full, 9999px);
  color: var(--color-text-muted);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-accent-dim);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-section {
  background: var(--color-bg);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-10), 6vw, var(--space-20));
  align-items: center;
}

.contact-text h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-5);
}

.contact-text > p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  list-style: none;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

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

.contact-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 2px;
}

.contact-list a {
  font-size: var(--text-base);
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: color-mix(in srgb, var(--color-primary) 40%, transparent);
  transition: text-decoration-color var(--transition);
}
.contact-list a:hover { text-decoration-color: var(--color-primary); }

.contact-list span:last-child {
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

/* Quote card */
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 4vw, var(--space-12));
}

.contact-card-quote {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: var(--space-6);
  max-width: 100%;
}

.contact-card-sig {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-8);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}

.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .menu-btn { display: flex; }
  .mobile-nav { display: block; }

  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-photo-col {
    position: static;
    flex-direction: row;
    align-items: center;
  }
  .about-photo-wrap {
    width: 140px;
    height: 180px;
    flex-shrink: 0;
  }
  .about-badge { flex: 1; text-align: left; }

  .contact-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .logo-text { display: none; }
  .hero-content { max-width: 100%; }
  .about-photo-col { flex-direction: column; }
  .about-photo-wrap { width: 100%; height: auto; aspect-ratio: 1; }
  .footer-inner { flex-direction: column; text-align: center; }
}

/* ============================================================
   SCROLL ANIMATIONS (minimal, opt-in)
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   FOOTER UPDATED
   ============================================================ */
.footer-updated {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  opacity: 0.6;
  margin-top: var(--space-1);
}

/* ============================================================
   CASE STUDY DRAWER
   ============================================================ */
.case-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 900;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.case-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.case-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(600px, 100vw);
  height: 100dvh;
  background: var(--color-bg);
  border-left: 1px solid var(--color-border);
  z-index: 901;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}
.case-drawer.active {
  transform: translateX(0);
}

.case-drawer-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-6) var(--space-6) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.case-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-primary) 30%, transparent);
  border-radius: 4px;
  padding: 2px 8px;
  margin-bottom: var(--space-2);
}
.case-drawer-header h2 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin: 0;
  line-height: 1.3;
}
.case-close {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.case-close:hover {
  background: var(--color-border);
  color: var(--color-text);
}

.case-drawer-body {
  overflow-y: auto;
  flex: 1;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  scroll-behavior: smooth;
}

.case-disclaimer {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  background: color-mix(in srgb, var(--color-primary) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-primary) 20%, transparent);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}
.case-disclaimer svg { flex-shrink: 0; margin-top: 1px; color: var(--color-primary); }

.case-section { display: flex; flex-direction: column; gap: var(--space-4); }

.case-section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.case-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.75;
}
.case-text strong { color: var(--color-text); }

.case-profile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}
.case-profile-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
}
.case-profile-key {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.case-profile-val {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 500;
}

/* Y-BOCS bars */
.case-ybocs-bar { display: flex; flex-direction: column; gap: var(--space-2); }
.case-ybocs-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.case-ybocs-score {
  font-size: var(--text-lg);
  font-weight: 700;
}
.case-ybocs-score.severe { color: #e05c5c; }
.case-ybocs-score.improved { color: #4db8c8; }
.case-bar-track {
  height: 8px;
  background: var(--color-surface);
  border-radius: 99px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.case-bar-fill {
  height: 100%;
  border-radius: 99px;
  transition: width 1s cubic-bezier(0.4,0,0.2,1);
}
.case-bar-fill.severe { background: #e05c5c; }
.case-bar-fill.improved { background: var(--color-primary); }
.case-bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--color-text-muted);
  opacity: 0.6;
}

/* Protocol grid */
.case-protocol-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
.case-proto-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
}
.proto-key {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.proto-val {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

/* Images */
.case-img-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.case-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.case-figure img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  object-fit: cover;
  aspect-ratio: 4/3;
  background: var(--color-surface);
}
.case-figure-wide { grid-column: 1 / -1; }
.case-figure-wide img { aspect-ratio: 16/7; }
figcaption {
  font-size: 10px;
  color: var(--color-text-muted);
  line-height: 1.5;
  opacity: 0.8;
}

/* Outcome compare */
.case-outcome-compare {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  position: relative;
}
.case-improvement-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  background: color-mix(in srgb, var(--color-primary) 15%, transparent);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-2) var(--space-4);
}
.case-improvement-badge span:first-child {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
}
.case-improvement-badge span:last-child {
  font-size: 10px;
  color: var(--color-primary);
  opacity: 0.8;
}

/* Logo button */
.logo { cursor: pointer; }

@media (max-width: 640px) {
  .case-profile-grid { grid-template-columns: 1fr; }
  .case-protocol-grid { grid-template-columns: 1fr 1fr; }
  .case-img-row { grid-template-columns: 1fr; }
  .case-improvement-badge { position: static; align-self: flex-start; }
}

.case-note {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-style: italic;
  border-left: 2px solid var(--color-border);
  padding-left: var(--space-3);
  opacity: 0.7;
}

/* ============================================================
   CASE DRAWER — TWO PANEL SYSTEM
   ============================================================ */
.case-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  position: absolute;
  inset: 0;
  background: var(--color-bg);
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.32s ease;
}
.case-panel-hidden {
  transform: translateX(100%);
  opacity: 0;
  pointer-events: none;
}
.case-panel.case-panel-visible {
  transform: translateX(0);
  opacity: 1;
  pointer-events: all;
}

/* List panel */
.case-list-body {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--space-6) var(--space-6);
}
.case-list-divider {
  height: 1px;
  background: var(--color-border);
  margin-bottom: var(--space-5);
}
.case-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.case-list-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4) var(--space-5);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition);
  color: var(--color-text);
}
.case-list-item:hover {
  border-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 6%, var(--color-surface));
}
.case-list-item-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.case-list-meta {
  display: flex;
  gap: var(--space-2);
  margin-bottom: 2px;
}
.case-list-tag {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-primary) 25%, transparent);
  border-radius: 4px;
  padding: 1px 7px;
}
.case-list-tag-dx {
  color: var(--color-text-muted);
  background: var(--color-border);
  border-color: transparent;
}
.case-list-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
}
.case-list-sub {
  font-size: 11px;
  color: var(--color-text-muted);
  line-height: 1.5;
}
.case-list-arrow {
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.case-list-item:hover .case-list-arrow {
  transform: translateX(3px);
  color: var(--color-primary);
}

/* Back button */
.case-back {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition);
}
.case-back:hover {
  background: var(--color-border);
  color: var(--color-text);
}

/* Detail panel drawer-body scroll */
#casePanelDetail {
  overflow: hidden;
}
#casePanelDetail .case-drawer-body {
  flex: 1;
  overflow-y: auto;
}