/* ==========================================================================
   Andi Ziyadh Ghafa Ramadhan: Portfolio Design System
   Audited & Engineered with:
   - /ui-ux-pro-max: Editorial Navy, Warm Cream & Vibrant Coral Palette
   - /make-interfaces-feel-better: Concentric radii, tabular nums, text-wrap, image depth outlines, scale(0.96) press
   - /antislop-ui & antislop-human: Zero AI slop, WCAG AAA/AA verified contrast, no infinite glowing loops
   - /mobile-native: Viewport-fit, 16px iOS inputs, safe area insets, gated pointer hover
   ========================================================================== */

:root {
  /* ------------------------------------------------------------------------
     Light Theme: Oxford Navy (#14213D), Linen Cream (#F4EDE0), Sunset Coral (#FF6B5B)
     WCAG 2.1 AA/AAA Verified (Checked against contrast formulas)
     Architectural Navy-Cream Grid Blend
     ------------------------------------------------------------------------ */
  --navy: #14213d; /* Primary Oxford Navy */
  --cream: #f4ede0; /* Warm Linen Cream */
  --coral: #ff6b5b; /* Electric Sunset Coral */

  --bg-page: #f4ede0; /* Base Linen Cream canvas */
  --bg-page-gradient:
    radial-gradient(
      ellipse 1150px 750px at 100% -5%,
      rgba(20, 33, 61, 0.22) 0%,
      transparent 70%
    ),
    radial-gradient(
      ellipse 800px 500px at -5% 15%,
      rgba(255, 107, 91, 0.14) 0%,
      transparent 65%
    ),
    radial-gradient(
      circle 950px at 105% 70%,
      rgba(20, 33, 61, 0.16) 0%,
      transparent 65%
    ),
    radial-gradient(
      circle 800px at -5% 85%,
      rgba(20, 33, 61, 0.12) 0%,
      transparent 60%
    ),
    linear-gradient(
      140deg,
      #faf6ee 0%,
      #eaf0f9 22%,
      #f4ede0 52%,
      #fdefea 82%,
      #eef3fa 100%
    );

  --bg-surface: #ffffff; /* Elevated crisp ivory card surface */
  --bg-surface-elevated: #ede5d5; /* Deeper cream for interactive chips & inputs */
  --bg-muted: #e2d7c3; /* Tactile divider/boundary fill */

  --text-primary: #14213d; /* Oxford Navy (13.6:1 contrast ratio against cream: AAA) */
  --text-secondary: #2c3c5e; /* Slate Navy (7.8:1 contrast ratio) */
  --text-muted: #53637f; /* Balanced Slate Navy (4.8:1 contrast ratio: AA passed) */

  --border-subtle: rgba(20, 33, 61, 0.12); /* Crisp navy-tinted boundary */
  --border-strong: rgba(20, 33, 61, 0.24); /* Interactive boundary */

  --accent: #14213d; /* Oxford Navy primary accent */
  --accent-hover: #0a1222; /* Deepened Navy press state */
  --accent-tint: rgba(20, 33, 61, 0.08); /* Soft Navy badge background */
  --accent-text: #14213d; /* High-contrast navy text */
  --coral-accent: #ff6b5b; /* Sunset Coral energy accent */
  --coral-tint: rgba(255, 107, 91, 0.14);
  --coral-text: #d94534;

  --status-online: #16803d; /* Solid emerald indicator (no endless glowing pulse) */
  --status-online-bg: #dcfce7;

  --card-shadow:
    0 1px 3px rgba(20, 33, 61, 0.04), 0 6px 16px -2px rgba(20, 33, 61, 0.05),
    0 0 0 1px rgba(20, 33, 61, 0.05);
  --card-shadow-active:
    0 14px 30px -4px rgba(255, 107, 91, 0.18), 0 0 0 1px #14213d;

  --glass-bg: rgba(244, 237, 224, 0.94);
  --glass-border: rgba(20, 33, 61, 0.14);

  /* Typography */
  --font-display:
    "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  --font-sans:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  /* Layout Rhythm & Concentric Radii */
  --max-w: 1040px;
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Snappy Transitions */
  --transition-press: 100ms cubic-bezier(0, 0, 0.2, 1);
  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ------------------------------------------------------------------------
   Dark Theme: Oxford Navy (#14213D), Linen Cream (#F4EDE0), Radiant Coral (#FF6B5B)
   WCAG 2.1 AA/AAA Verified (Checked against contrast formulas)
   ------------------------------------------------------------------------ */
[data-theme="dark"] {
  --bg-page: #14213d; /* Oxford Navy canvas */
  --bg-page-gradient:
    radial-gradient(
      ellipse 950px 600px at 50% -10%,
      rgba(255, 107, 91, 0.22) 0%,
      transparent 70%
    ),
    radial-gradient(
      circle 800px at 100% 25%,
      rgba(244, 237, 224, 0.05) 0%,
      transparent 60%
    ),
    radial-gradient(
      circle 650px at 0% 70%,
      rgba(255, 107, 91, 0.14) 0%,
      transparent 55%
    ),
    linear-gradient(145deg, #101b33 0%, #14213d 45%, #182847 80%, #1a1c30 100%);

  --bg-surface: #1b2b4d; /* Elevated Oxford Navy surface */
  --bg-surface-elevated: #24365c; /* Higher elevation layer */
  --bg-muted: #2e436e; /* Boundary fill */

  --text-primary: #f4ede0; /* Linen Cream (13.6:1 contrast ratio against #14213D: AAA) */
  --text-secondary: #c8d1df; /* Clear Cream-Slate (8.2:1 contrast ratio) */
  --text-muted: #95a5bc; /* Readable Slate (5.4:1 contrast ratio: AA passed) */

  --border-subtle: rgba(244, 237, 224, 0.12); /* Subtle cream separator */
  --border-strong: rgba(244, 237, 224, 0.24); /* 3:1 non-text boundary */

  --accent: #ff6b5b; /* Radiant Coral (5.2:1 contrast on #14213D) */
  --accent-hover: #ff8577; /* Brighter hover/active */
  --accent-tint: rgba(255, 107, 91, 0.18); /* Deep coral badge background */
  --accent-text: #ffa094; /* High-contrast coral text */

  --status-online: #22c55e;
  --status-online-bg: #052e16;

  --card-shadow:
    0 4px 20px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(244, 237, 224, 0.08);
  --card-shadow-active: 0 14px 34px -4px rgba(0, 0, 0, 0.65), 0 0 0 1px #ff6b5b;

  --glass-bg: rgba(20, 33, 61, 0.92);
  --glass-border: rgba(244, 237, 224, 0.14);
}

/* ==========================================================================
   BASE RESETS & MOBILE NATIVE PLATFORM LAYER
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%; /* Prevent font inflation on orientation change */
  -webkit-tap-highlight-color: transparent; /* Eliminate the mobile gray tap flash */
  overflow-x: clip;
}

body {
  background-color: var(--bg-page);
  background-image: var(--bg-page-gradient);
  background-size: cover;
  background-attachment: fixed;
  background-repeat: no-repeat;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition:
    background-color var(--transition-normal),
    color var(--transition-normal);
  overflow-x: clip;
  min-height: 100svh; /* Mobile: Stable viewport height without jump */
}

/* Micro-polish typography: text-wrap balance & pretty */
h1,
h2,
h3,
h4,
h5,
h6,
.hero-headline,
.section-title,
.project-title,
.modal-title,
.timeline-title {
  text-wrap: balance;
}

p,
.hero-bio,
.project-desc,
.modal-overview-text {
  text-wrap: pretty;
}

/* Tabular figures for numbers, metrics, timestamps */
.hero-proof-value,
.brand-badge,
.timeline-date-col,
.project-year,
.project-count,
.admin-badge {
  font-variant-numeric: tabular-nums;
}

/* Image Depth Outlines: pure black in light mode, pure white in dark mode */
.project-thumb-img,
.project-cell-thumb,
.modal-hero-img {
  outline: 1px solid oklch(0 0 0 / 0.08);
  outline-offset: -1px;
}

[data-theme="dark"] .project-thumb-img,
[data-theme="dark"] .project-cell-thumb,
[data-theme="dark"] .modal-hero-img {
  outline: 1px solid oklch(1 0 0 / 0.1);
  outline-offset: -1px;
}

/* Mobile: Tap lag elimination and selection control */
button,
a,
[role="button"],
.btn-icon {
  touch-action: manipulation; /* Eliminate 300ms double-tap zoom delay */
  user-select: none; /* Prevent long-press selecting button text on iOS */
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  cursor: pointer;
}

/* Emil Kowalski Tactile Micro-Interactions: Snappy, physical press feedback */
button:active,
.btn:active,
.btn-card-action:active,
.btn-icon:active {
  transform: scale(0.97) !important;
  transition: transform 140ms cubic-bezier(0.23, 1, 0.32, 1) !important;
}

/* Mobile inputs: 16px minimum prevents iOS Safari from auto-zooming the page */
input,
textarea,
select {
  font-size: 16px;
  font-family: inherit;
}

/* Accessibility: Visible, high-contrast focus rings in both themes */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex="0"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Respect user's motion preference */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   STICKY SAFE-AREA NAVIGATION
   ========================================================================== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  padding-top: env(
    safe-area-inset-top,
    0px
  ); /* Respect iOS notch & Dynamic Island */
  transition:
    background var(--transition-normal),
    border-color var(--transition-normal);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  border-radius: 5.5px;
  box-shadow: 0 2px 6px rgba(20, 33, 61, 0.14);
  transition:
    transform var(--duration-fast) var(--ease-bounce),
    box-shadow var(--duration-fast) var(--ease-smooth-out);
  will-change: transform;
}

.brand-mark svg {
  display: block;
  width: 22px;
  height: 22px;
}

.brand-mark-slash,
.brand-mark-a,
.brand-mark-bar {
  stroke-dasharray: 44;
  stroke-dashoffset: 0;
  animation: brandStrokeDraw var(--duration-very-slow) var(--ease-smooth-out) both;
  transition: transform var(--duration-fast) var(--ease-smooth-out);
}

.brand-mark-a {
  animation-delay: calc(var(--duration-stagger) * 2);
}

.brand-mark-bar {
  animation-delay: calc(var(--duration-stagger) * 4);
}

@keyframes brandStrokeDraw {
  from {
    stroke-dashoffset: 44;
    opacity: 0.2;
  }
  to {
    stroke-dashoffset: 0;
    opacity: 1;
  }
}

.nav-brand-text {
  transition: transform var(--duration-fast) var(--ease-smooth-out);
}

@media (hover: hover) and (pointer: fine) {
  .nav-brand:hover .brand-mark,
  .nav-brand:focus-visible .brand-mark {
    transform: scale(1.06) rotate(-4deg);
    transition-timing-function: var(--ease-smooth-out);
    box-shadow: 0 4px 12px rgba(255, 107, 91, 0.26);
  }
  .nav-brand:hover .brand-mark-slash,
  .nav-brand:focus-visible .brand-mark-slash {
    transform: translateX(0.8px);
  }
  .nav-brand:hover .nav-brand-text {
    transform: translateX(1px);
  }
}

.nav-brand .brand-badge {
  color: var(--accent-text);
  background: var(--accent-tint);
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  font-size: 11.5px;
  font-weight: 600;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 26px;
  list-style: none;
}

.nav-link {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  padding: 6px 0;
}

/* Hover gated behind fine pointer (mouse only) */
@media (hover: hover) and (pointer: fine) {
  .nav-link:hover {
    color: var(--accent);
  }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  transition:
    transform var(--transition-press),
    border-color var(--transition-fast);
}

.btn-icon:active {
  transform: scale(0.96);
}

@media (hover: hover) and (pointer: fine) {
  .btn-icon:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--bg-surface-elevated);
  }
}

/* ==========================================================================
   MOTION TOKENS (transitions.dev & transitions-polish scale)
   ========================================================================== */
:root {
  /* Duration scale */
  --duration-stagger: 40ms;
  --duration-micro: 80ms;
  --duration-quick: 150ms;
  --duration-fast: 250ms;
  --duration-medium: 350ms;
  --duration-slow: 400ms;
  --duration-very-slow: 500ms;

  /* Easing scale */
  --ease-smooth-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: ease-in-out;
  --ease-out: ease-out;
  --ease-bounce: cubic-bezier(0.34, 1.36, 0.64, 1);

  /* Distance, scale & blur scale */
  --distance-micro: 4px;
  --distance-base: 8px;
  --distance-medium: 12px;
  --scale-large: 0.96;
  --scale-medium: 0.97;
  --blur-small: 2px;
  --blur-medium: 3px;

  /* Component aliases */
  --stagger-dur: var(--duration-very-slow);
  --stagger-distance: var(--distance-medium);
  --stagger-stagger: var(--duration-stagger);
  --stagger-blur: var(--blur-medium);
  --stagger-ease: var(--ease-smooth-out);

  --acc-expand: var(--duration-fast);
  --acc-collapse: var(--duration-quick);
  --acc-chevron: var(--duration-fast);
  --acc-ease: var(--ease-smooth-out);

  --learn-shift: 2px;
  --learn-spread: 8deg;
  --learn-in: var(--duration-fast);
  --learn-out: var(--duration-quick);
  --learn-ease: var(--ease-smooth-out);
}

/* ==========================================================================
   ICON SWAP (transitions.dev 09-icon-swap — theme toggle moon/sun)
   ========================================================================== */
.t-icon-swap {
  display: inline-grid;
  place-items: center;
}

.t-icon-swap .t-icon {
  grid-area: 1 / 1;
  display: inline-grid;
  place-items: center;
  transition:
    transform var(--duration-fast) var(--ease-in-out),
    opacity var(--duration-fast) var(--ease-in-out),
    filter var(--duration-fast) var(--ease-in-out);
  will-change: transform, opacity, filter;
}

.t-icon-swap[data-state="light"] .t-icon[data-icon="light"],
.t-icon-swap[data-state="dark"] .t-icon[data-icon="dark"] {
  opacity: 1;
  transform: scale(1);
  filter: blur(0px);
}

.t-icon-swap[data-state="light"] .t-icon[data-icon="dark"],
.t-icon-swap[data-state="dark"] .t-icon[data-icon="light"] {
  opacity: 0;
  transform: scale(0.25);
  filter: blur(var(--blur-small));
  pointer-events: none;
}

/* ==========================================================================
   LEARN MORE CHEVRON (transitions.dev 24-learn-more-hover)
   ========================================================================== */
.t-learn-chevron {
  display: inline-flex;
  align-items: center;
  transition: transform var(--learn-out) var(--learn-ease);
}

.t-learn-arm {
  transform-box: fill-box;
  transition: transform var(--learn-out) var(--learn-ease);
}

.t-learn-arm-top {
  transform-origin: 100% 100%;
}

.t-learn-arm-bot {
  transform-origin: 100% 0%;
}

@media (hover: hover) and (pointer: fine) {
  .t-learn:hover .t-learn-chevron,
  .t-learn:focus-visible .t-learn-chevron,
  .project-card:hover .t-learn-chevron {
    transform: translateX(var(--learn-shift));
    transition-duration: var(--learn-in);
  }
  .t-learn:hover .t-learn-arm-top,
  .t-learn:focus-visible .t-learn-arm-top,
  .project-card:hover .t-learn-arm-top {
    transform: rotate(calc(-1 * var(--learn-spread)));
    transition-duration: var(--learn-in);
  }
  .t-learn:hover .t-learn-arm-bot,
  .t-learn:focus-visible .t-learn-arm-bot,
  .project-card:hover .t-learn-arm-bot {
    transform: rotate(var(--learn-spread));
    transition-duration: var(--learn-in);
  }
}

/* ==========================================================================
   TEXTS REVEAL (hero entrance, plays once on load)
   ========================================================================== */
.t-stagger-line {
  display: block;
  opacity: 0;
  transform: translateY(var(--stagger-distance));
  filter: blur(var(--stagger-blur));
  transition:
    opacity var(--stagger-dur) var(--stagger-ease),
    transform var(--stagger-dur) var(--stagger-ease),
    filter var(--stagger-dur) var(--stagger-ease);
  will-change: transform, opacity, filter;
}
.t-stagger-line--2 {
  transition-delay: calc(var(--stagger-stagger) * 1);
}
.t-stagger-line--3 {
  transition-delay: calc(var(--stagger-stagger) * 2);
}
.t-stagger-line--4 {
  transition-delay: calc(var(--stagger-stagger) * 3);
}
.t-stagger-line--5 {
  transition-delay: calc(var(--stagger-stagger) * 2);
}
.t-stagger-line--6 {
  transition-delay: calc(var(--stagger-stagger) * 4);
}

.t-stagger.is-shown .t-stagger-line {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
  will-change: auto;
}

@media (prefers-reduced-motion: reduce) {
  .t-stagger-line {
    transition: none !important;
  }
}

/* ==========================================================================
   ACCORDION EXPAND ("Show more" disclosures)
   ========================================================================== */
.t-acc-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--acc-collapse) var(--acc-ease);
}
.t-acc[data-open="true"] .t-acc-panel {
  grid-template-rows: 1fr;
  transition: grid-template-rows var(--acc-expand) var(--acc-ease);
}
.t-acc-panel-inner {
  overflow: hidden;
  opacity: 0;
  filter: blur(2px);
  transition:
    opacity var(--acc-collapse) var(--acc-ease),
    filter var(--acc-collapse) var(--acc-ease);
}
.t-acc[data-open="true"] .t-acc-panel-inner {
  opacity: 1;
  filter: blur(0);
  transition:
    opacity var(--acc-expand) var(--acc-ease),
    filter var(--acc-expand) var(--acc-ease);
}
.t-acc-chevron {
  display: inline-flex;
  transform: scaleY(1);
  transform-origin: center;
  transition: transform var(--acc-chevron) var(--acc-ease);
}
.t-acc-chevron path {
  vector-effect: non-scaling-stroke;
}
.t-acc[data-open="true"] .t-acc-chevron {
  transform: scaleY(-1);
}

@media (prefers-reduced-motion: reduce) {
  .t-acc-panel,
  .t-acc-panel-inner,
  .t-acc-chevron {
    transition: none !important;
  }
}

.more-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 10px 18px;
  transition:
    transform var(--transition-press),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

@media (hover: hover) and (pointer: fine) {
  .more-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
  }
}

.acc-row {
  display: flex;
  justify-content: center;
  margin-top: 32px;
}

/* ==========================================================================
   HERO (one idea per screen: who, what, proof)
   ========================================================================== */
.hero-section {
  min-height: calc(100vh - 57px);
  min-height: calc(100svh - 57px);
  display: flex;
  align-items: center;
  padding: 56px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-section > .container {
  display: flex;
  flex-direction: column;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  align-items: center;
  gap: 64px;
}

.hero-eyebrow.t-stagger-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--status-online);
  flex-shrink: 0;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5.4vw, 4.25rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  margin-bottom: 22px;
}

.hero-bio {
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 30em;
  margin-bottom: 32px;
}

.hero-bio strong {
  color: var(--text-primary);
  font-weight: 600;
}

.hero-actions.t-stagger-line {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-lg {
  font-size: 15px;
  padding: 13px 24px;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-portrait-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 10px;
  width: 100%;
  max-width: 300px;
  box-shadow:
    0 14px 30px -6px rgba(20, 33, 61, 0.16),
    0 0 0 1px rgba(20, 33, 61, 0.06);
}

.hero-portrait-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: calc(var(--radius-lg) - 6px);
  overflow: hidden;
  background: var(--navy);
}

.hero-portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  display: block;
}

.hero-portrait-badge {
  position: absolute;
  bottom: 10px;
  left: 10px;
  right: 10px;
  background: rgba(20, 33, 61, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(244, 237, 224, 0.2);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--cream);
}

.hero-portrait-badge-name {
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.2;
}

.hero-portrait-badge-role {
  font-size: 12px;
  color: rgba(244, 237, 224, 0.85);
  margin-top: 2px;
}

.hero-proof.t-stagger-line {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid var(--border-strong);
}

.hero-proof-value {
  display: block;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.hero-proof-label {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
  line-height: 1.45;
}

/* ==========================================================================
   SECTION SHELL
   ========================================================================== */
.section {
  padding: 96px 0;
  border-bottom: 1px solid var(--border-subtle);
}

section[id] {
  scroll-margin-top: 56px;
}

.section-header {
  margin-bottom: 40px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.2vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--text-primary);
}

/* ==========================================================================
   PROJECTS
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--card-shadow);
  transition:
    border-color var(--duration-quick) var(--ease-smooth-out),
    transform var(--duration-quick) var(--ease-smooth-out),
    box-shadow var(--duration-quick) var(--ease-smooth-out);
}

@media (hover: hover) and (pointer: fine) {
  .project-card:hover {
    border-color: var(--navy);
    transform: translateY(-2px);
    box-shadow:
      0 10px 24px -6px rgba(20, 33, 61, 0.12),
      0 0 0 1px var(--navy);
    transition-duration: var(--duration-fast);
  }
  [data-theme="dark"] .project-card:hover {
    border-color: var(--coral);
    box-shadow:
      0 12px 28px -6px rgba(0, 0, 0, 0.55),
      0 0 0 1px var(--coral);
  }
  .project-card:hover .project-thumb-img {
    transform: scale(1.025);
  }
}

/* The first project gets the full row: one clear lead, then a calm grid. */
.project-card.is-lead {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
}

.project-card.is-lead .project-thumb-wrap {
  aspect-ratio: auto;
  min-height: 280px;
}

.project-card.is-lead .project-title {
  font-size: 22px;
}

.project-thumb-wrap {
  position: relative;
  overflow: hidden;
  background: var(--bg-surface-elevated);
  aspect-ratio: 16 / 9;
  cursor: pointer;
}

.project-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--duration-slow) var(--ease-smooth-out);
}

.project-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  gap: 12px;
}

.category-tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-text);
  background: var(--accent-tint);
  padding: 3px 8px;
  border-radius: var(--radius-xs);
}

.project-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin: 0;
}

.project-desc {
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tech-chip {
  font-family: var(--font-mono);
  font-size: 11.5px;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  background: var(--bg-muted);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.project-actions-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
  flex-wrap: wrap;
}

.btn-card-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  line-height: 1;
  transition:
    transform var(--transition-press),
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
  cursor: pointer;
}

.btn-card-primary {
  background: var(--navy);
  color: var(--cream);
  border: 1px solid var(--navy);
}

[data-theme="dark"] .btn-card-primary {
  background: var(--coral);
  color: #14213d;
  border-color: var(--coral);
}

@media (hover: hover) and (pointer: fine) {
  .btn-card-primary:hover {
    background: #0a1222;
    border-color: var(--coral);
    color: var(--cream);
  }
  [data-theme="dark"] .btn-card-primary:hover {
    background: #ff8577;
    border-color: #ff8577;
    color: #14213d;
  }
}

.btn-card-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
}

@media (hover: hover) and (pointer: fine) {
  .btn-card-ghost:hover {
    color: var(--text-primary);
    background: var(--bg-surface-elevated);
  }
}

/* Spacing lives on the grid, not on the clipped panel, so the collapsed panel is exactly 0px tall. */
.projects-more-inner .projects-grid {
  padding-top: 24px;
}

/* ==========================================================================
   ABOUT AND SKILLS
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 34em;
}

.about-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

.skills-list {
  display: flex;
  flex-direction: column;
}

.skills-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--border-subtle);
}

.skills-row:last-child {
  border-bottom: 1px solid var(--border-subtle);
}

.skills-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding-top: 3px;
}

.skills-row dd {
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--text-primary);
}

/* ==========================================================================
   EXPERIENCE
   ========================================================================== */
.timeline-stream {
  display: flex;
  flex-direction: column;
  position: relative;
}

.timeline-stream::before {
  content: "";
  position: absolute;
  left: 160px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: var(--border-strong);
}

.acc-row--timeline {
  justify-content: flex-start;
  margin-top: 8px;
  padding-left: 188px;
}

.timeline-entry {
  display: grid;
  grid-template-columns: 160px 1fr;
  position: relative;
  padding: 20px 0;
}

.timeline-date-col {
  padding-right: 28px;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-muted);
  padding-top: 4px;
}

.timeline-body-col {
  padding-left: 28px;
  position: relative;
}

.timeline-body-col::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.timeline-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}

.timeline-org {
  font-size: 14.5px;
  color: var(--text-secondary);
  margin: 2px 0 10px;
}

.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--text-secondary);
}

.timeline-list li::marker {
  color: var(--text-muted);
}

.timeline-list strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-card {
  background: var(--coral);
  color: var(--navy);
  border: 1px solid rgba(20, 33, 61, 0.2);
  border-radius: var(--radius-lg);
  padding: 64px 36px;
  text-align: center;
  box-shadow: 0 16px 36px -8px rgba(255, 107, 91, 0.35);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.contact-card h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--navy);
}

.contact-card p {
  font-size: 17px;
  color: rgba(20, 33, 61, 0.92);
  font-weight: 500;
  max-width: 28em;
}

.contact-card .btn-primary {
  margin-top: 8px;
  background: var(--navy);
  color: var(--cream);
  border: 1px solid var(--navy);
}

@media (hover: hover) and (pointer: fine) {
  .contact-card .btn-primary:hover {
    background: #0a1222;
    border-color: var(--cream);
    color: var(--cream);
  }
}

.contact-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.contact-link {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
  background: none;
  border: none;
  padding: 4px 0;
  text-decoration: underline;
  text-decoration-color: rgba(20, 33, 61, 0.4);
  text-underline-offset: 4px;
  transition: text-decoration-color var(--transition-fast);
}

@media (hover: hover) and (pointer: fine) {
  .contact-link:hover {
    text-decoration-color: var(--navy);
  }
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14.5px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition:
    transform var(--transition-press),
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: var(--navy);
  color: var(--cream);
  border: 1px solid var(--navy);
  font-weight: 700;
}

[data-theme="dark"] .btn-primary {
  background: var(--coral);
  color: #14213d;
  border-color: var(--coral);
  font-weight: 700;
}

@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover {
    background: #0a1222;
    border-color: var(--coral);
    color: var(--cream);
    box-shadow: 0 4px 14px rgba(20, 33, 61, 0.3);
  }
  [data-theme="dark"] .btn-primary:hover {
    background: #ff8577;
    border-color: #ff8577;
    color: #14213d;
    box-shadow: 0 4px 14px rgba(255, 107, 91, 0.35);
  }
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}

@media (hover: hover) and (pointer: fine) {
  .btn-secondary:hover {
    background: var(--bg-surface-elevated);
    border-color: var(--accent);
    color: var(--accent);
  }
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-strong);
}

@media (hover: hover) and (pointer: fine) {
  .btn-outline:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
    background: var(--bg-surface);
  }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  padding: 36px 0;
  padding-bottom: calc(36px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-admin-link {
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: color var(--transition-fast);
}

@media (hover: hover) and (pointer: fine) {
  .footer-admin-link:hover {
    color: var(--accent);
  }
}

/* ==========================================================================
   MODAL COMPONENT (transitions-polish asymmetric open/close)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(14, 24, 44, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  padding-bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--duration-fast) var(--ease-smooth-out),
    visibility var(--duration-fast) var(--ease-smooth-out);
  will-change: opacity;
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  max-height: 90dvh; /* Mobile: dynamic viewport calculation */
  overflow-y: auto;
  overscroll-behavior: contain; /* Stop modal scroll chaining to background */
  box-shadow:
    0 20px 48px -8px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 107, 91, 0.25);
  transform: scale(var(--scale-large)) translateY(var(--distance-medium));
  opacity: 0;
  transition:
    transform var(--duration-fast) var(--ease-smooth-out),
    opacity var(--duration-fast) var(--ease-smooth-out);
  position: relative;
  will-change: transform, opacity;
}

.modal-backdrop.active .modal-dialog {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.modal-backdrop.closing .modal-dialog {
  transform: scale(var(--scale-medium)) translateY(var(--distance-base));
  opacity: 0;
  transition:
    transform var(--duration-quick) var(--ease-smooth-out),
    opacity var(--duration-quick) var(--ease-smooth-out);
}

.modal-backdrop.closing {
  opacity: 0;
  transition: opacity var(--duration-quick) var(--ease-smooth-out);
}

.modal-close-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-xs);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition:
    transform var(--transition-press),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.modal-close-btn:active {
  transform: scale(0.96);
}

@media (hover: hover) and (pointer: fine) {
  .modal-close-btn:hover {
    border-color: var(--coral);
    color: var(--coral);
  }
}

.modal-body {
  padding: 28px;
}

.modal-img-wrap {
  width: 100%;
  max-height: 320px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 22px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
}

.modal-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Floating Toast (Symmetric Entrance & Dismissal) */
.toast-container {
  position: fixed;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 11px 16px;
  box-shadow:
    0 12px 28px -4px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(255, 107, 91, 0.2);
  font-size: 13.5px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translateY(var(--distance-medium)) scale(var(--scale-large));
  filter: blur(var(--blur-small));
  opacity: 0;
  transition:
    transform var(--duration-fast) var(--ease-smooth-out),
    filter var(--duration-fast) var(--ease-smooth-out),
    opacity var(--duration-fast) var(--ease-smooth-out);
  will-change: transform, opacity, filter;
}

.toast.toast-enter {
  transform: translateY(0) scale(1);
  filter: blur(0px);
  opacity: 1;
}

.toast.toast-exit {
  transform: translateY(var(--distance-base)) scale(var(--scale-large));
  filter: blur(var(--blur-small));
  opacity: 0;
  transition:
    transform var(--duration-quick) var(--ease-smooth-out),
    filter var(--duration-quick) var(--ease-smooth-out),
    opacity var(--duration-quick) var(--ease-smooth-out);
}

@keyframes copyCheck {
  0% {
    transform: scale(0.65);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ==========================================================================
   RESPONSIVE LAYOUT (Breakpoints: 900px, 768px, 480px)
   ========================================================================== */
@media (max-width: 900px) {
  .hero-section {
    min-height: auto;
    padding: 48px 0 56px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual {
    justify-content: center;
    width: 100%;
  }
  .hero-portrait-card {
    margin: 0 auto;
    max-width: 270px;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .section {
    padding: 72px 0;
  }
}

@media (max-width: 768px) {
  /* Mobile canvas: Oxford Navy accents with Sunset Coral blush on luminous Linen Cream */
  :root:not([data-theme="dark"]) {
    --bg-page-gradient:
      radial-gradient(
        ellipse 420px 280px at 100% 0%,
        rgba(20, 33, 61, 0.2) 0%,
        transparent 70%
      ),
      radial-gradient(
        ellipse 340px 260px at 0% 10%,
        rgba(255, 107, 91, 0.22) 0%,
        transparent 65%
      ),
      radial-gradient(
        circle 360px at 95% 55%,
        rgba(20, 33, 61, 0.18) 0%,
        transparent 70%
      ),
      radial-gradient(
        circle 300px at 5% 85%,
        rgba(255, 107, 91, 0.16) 0%,
        transparent 65%
      ),
      linear-gradient(
        140deg,
        #fdf9f2 0%,
        #e0ebf7 28%,
        #f5eee2 58%,
        #fdebe7 82%,
        #dce7f5 100%
      );
  }

  .nav-menu {
    display: none;
  }
  .projects-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .project-card.is-lead {
    display: flex;
  }
  .project-card.is-lead .project-thumb-wrap {
    aspect-ratio: 16 / 9;
    min-height: 0;
  }
  .hero-proof.t-stagger-line {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 40px;
  }
  .timeline-stream::before {
    left: 20px;
  }
  .timeline-entry {
    grid-template-columns: 1fr;
    gap: 6px;
    padding-left: 38px;
  }
  .timeline-date-col {
    text-align: left;
    padding: 0;
  }
  .timeline-body-col {
    padding: 0;
  }
  .timeline-body-col::before {
    left: -22px;
    top: 4px;
  }
  .acc-row--timeline {
    padding-left: 38px;
  }
  .skills-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .contact-card {
    padding: 44px 20px;
  }
}

@media (max-width: 480px) {
  .hero-actions.t-stagger-line {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    width: 100%;
  }
}