/* ════════════════════════════════════════════════════════
   r4tur1 — Portfolio CSS
   Author: Aaditya Raturi
   Structure:
     0. Reset & Base
     1. CSS Variables & Themes
     2. Typography Utilities
     3. Layout & Container
     4. Navigation
     5. Theme Toggle
     6. Theme Transition Overlay
     7. Hero Section
     8. About Section
     9. Skills Section
    10. Projects Section
    11. Contact Section
    12. Footer
    13. Animations & Keyframes
    14. Responsive
════════════════════════════════════════════════════════ */

/* ─── 0. RESET & BASE ──────────────────────────────── */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Instrument Sans', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ─── 1. CSS VARIABLES & THEMES ────────────────────── */

:root {
  --font-display: 'Syne', sans-serif;
  --font-mono:    'DM Mono', monospace;
  --font-body:    'Instrument Sans', sans-serif;
  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --transition-fast: 0.15s ease;
  --transition-mid:  0.3s ease;
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="midnight"] {
  --bg:            #0d0f1a;
  --bg-surface:    #131629;
  --bg-elevated:   #1a1f35;
  --bg-card:       #161c30;
  --border:        rgba(255, 255, 255, 0.08);
  --border-accent: rgba(100, 130, 255, 0.35);
  --text:          #ECEFF1;
  --text-muted:    #8b94b2;
  --text-dim:      #4e5880;
  --accent:        #6384ff;
  --accent-glow:   rgba(99, 132, 255, 0.25);
  --accent-soft:   rgba(99, 132, 255, 0.12);
  --badge-learning-bg:      rgba(255, 200, 80, 0.12);
  --badge-learning-text:    #ffc850;
  --badge-comfortable-bg:   rgba(80, 220, 140, 0.12);
  --badge-comfortable-text: #50dc8c;
  --badge-next-bg:          rgba(150, 150, 255, 0.12);
  --badge-next-text:        #a0a8ff;
  --nav-bg:    rgba(13, 15, 26, 0.85);
  --scrollbar: #1a1f35;
}

[data-theme="forest"] {
  --bg:            #0a1a12;
  --bg-surface:    #0f2318;
  --bg-elevated:   #162d1f;
  --bg-card:       #132519;
  --border:        rgba(247, 231, 206, 0.08);
  --border-accent: rgba(180, 140, 80, 0.4);
  --text:          #F7E7CE;
  --text-muted:    #b89f7a;
  --text-dim:      #6b5640;
  --accent:        #c8914a;
  --accent-glow:   rgba(200, 145, 74, 0.25);
  --accent-soft:   rgba(200, 145, 74, 0.10);
  --badge-learning-bg:      rgba(200, 145, 74, 0.15);
  --badge-learning-text:    #e0a860;
  --badge-comfortable-bg:   rgba(80, 180, 100, 0.15);
  --badge-comfortable-text: #6eca88;
  --badge-next-bg:          rgba(170, 150, 100, 0.12);
  --badge-next-text:        #c8b080;
  --nav-bg:    rgba(10, 26, 18, 0.88);
  --scrollbar: #162d1f;
}

::-webkit-scrollbar       { width: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar); }
::-webkit-scrollbar-thumb { background: var(--border-accent); border-radius: 99px; min-height: 40px; }

/* ─── 2. TYPOGRAPHY UTILITIES ───────────────────────── */

.dm-mono { font-family: var(--font-mono); letter-spacing: 0.04em; }
.accent  { color: var(--accent); }

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.08;
  color: var(--text);
  letter-spacing: -0.03em;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 2rem;
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
  border-radius: 99px;
  padding: 0.3rem 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ─── 3. LAYOUT & CONTAINER ─────────────────────────── */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section { padding: 7rem 0; position: relative; }
.section + .section { border-top: 1px solid var(--border); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
  transition: all var(--transition-mid);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), rgba(200, 145, 74, 0.8));
  color: #fff;
  border: 1px solid var(--accent);
  position: relative;
  overflow: hidden;
}

.btn--primary::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
  transform: rotate(45deg);
  animation: shimmer 3s infinite;
}

.btn--primary:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 12px 40px var(--accent-glow), inset 0 0 20px rgba(255,255,255,0.1);
}

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

.btn--ghost:hover {
  border-color: var(--border-accent);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.btn--full { width: 100%; }

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.2rem 0.6rem;
  letter-spacing: 0.05em;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

/* ─── 4. NAVIGATION ─────────────────────────────────── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition-mid), border-color var(--transition-mid),
              transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__logo { flex-shrink: 0; margin-right: auto; }

.logo-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-soft), rgba(200, 145, 74, 0.15));
  transition: all var(--transition-mid);
  overflow: hidden;
  position: relative;
}

.logo-slot:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow), inset 0 0 15px rgba(200, 145, 74, 0.2);
  transform: scale(1.08);
}

.logo-slot__text {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.03em;
}

.logo-slot img { width: 100%; height: 100%; object-fit: cover; }

.nav__links { display: flex; align-items: center; gap: 0.2rem; }

.nav__link {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav__link:hover { color: var(--text); background: var(--bg-elevated); }

/* Mobile hamburger — hidden on desktop */
.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  cursor: pointer;
  flex-shrink: 0;
}

.nav__mobile-toggle span {
  display: block;
  height: 1.5px;
  background: var(--text-muted);
  border-radius: 99px;
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}

.nav__mobile-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__mobile-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__mobile-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav__mobile-menu {
  display: none;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0.8rem 2rem 1.2rem;
  flex-direction: column;
  gap: 0.2rem;
}

.nav__mobile-menu.open { display: flex; }

.nav__mobile-link {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav__mobile-link:hover { color: var(--text); background: var(--bg-elevated); }

/* ─── 5. THEME TOGGLE ───────────────────────────────── */

.theme-toggle {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 99px;
  background: linear-gradient(135deg, var(--bg-elevated), rgba(200, 145, 74, 0.08));
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  transition: all var(--transition-mid);
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--text);
  box-shadow: 0 0 15px rgba(200, 145, 74, 0.3);
}

.theme-toggle__track {
  position: relative;
  display: flex;
  align-items: center;
  width: 38px;
  height: 20px;
  background: var(--bg);
  border: 1px solid var(--border-accent);
  border-radius: 99px;
  overflow: hidden;
  transition: background var(--transition-mid);
}

.theme-toggle__thumb {
  position: absolute;
  left: 2px;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 50%;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 1;
}

[data-theme="forest"] .theme-toggle__thumb { transform: translateX(18px); }

.theme-toggle__icon {
  position: absolute;
  font-size: 10px;
  line-height: 1;
  transition: opacity var(--transition-mid);
}

.theme-toggle__icon--moon { left: 3px;  opacity: 1; }
.theme-toggle__icon--leaf { right: 3px; opacity: 0.5; }

[data-theme="forest"] .theme-toggle__icon--moon { opacity: 0.5; }
[data-theme="forest"] .theme-toggle__icon--leaf { opacity: 1; }

/* ─── 6. THEME TRANSITION OVERLAY ───────────────────── */

.theme-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  display: none;
}

.jungle-layer,
.bubble-layer {
  position: absolute;
  inset: 0;
  display: none;
}

/* FIX: correct forest green color (was wrong #0a1a12 before) */
.jungle-fill {
  position: absolute;
  inset: 0;
  background: #102C26;
  transform: scaleY(0);
  transform-origin: bottom center;
  /* animation assigned by JS each toggle — not here */
}

.jungle-vines {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background:
    repeating-linear-gradient(
      90deg,
      transparent 0%,
      transparent 8%,
      rgba(10, 32, 20, 0.85) 8%,
      rgba(10, 32, 20, 0.85) 10%
    );
  transform: scaleY(0);
  transform-origin: bottom center;
  /* animation assigned by JS each toggle — not here */
}

/* FIX: removed hardcoded animation — leaves pre-played on load before */
.leaf {
  position: absolute;
  font-size: clamp(2rem, 5vw, 4rem);
  opacity: 0;
  /* animation assigned by JS each toggle — not here */
}

.leaf-1 { left: 5%; }
.leaf-2 { left: 15%; }
.leaf-3 { left: 25%; }
.leaf-4 { left: 38%; }
.leaf-5 { left: 52%; }
.leaf-6 { left: 63%; }
.leaf-7 { left: 78%; }
.leaf-8 { left: 90%; }

@keyframes leaf-fall {
  0%   { top: -100px; opacity: 0; transform: rotate(-20deg); }
  40%  { opacity: 1; }
  100% { top: 110vh;  opacity: 0.3; transform: rotate(30deg) translateX(40px); }
}

@keyframes jungle-rise {
  0%   { transform: scaleY(0); }
  100% { transform: scaleY(1); }
}

.water-fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, #0a1a12 0%, #0f2318 100%);
  transform: scaleY(0);
  transform-origin: bottom center;
  /* animation assigned by JS each toggle — not here */
}

.bubble {
  position: absolute;
  bottom: -60px;
  border-radius: 50%;
  border: 2px solid rgba(200, 145, 74, 0.5);
  background: rgba(200, 145, 74, 0.06);
  opacity: 0;
  /* animation assigned by JS each toggle — not here */
}

@keyframes bubble-rise {
  0%   { bottom: -60px; opacity: 0; }
  20%  { opacity: 1; }
  100% { bottom: 110vh; opacity: 0; }
}

@keyframes water-rise {
  0%   { transform: scaleY(0); }
  100% { transform: scaleY(1); }
}

/* ─── 7. HERO SECTION ────────────────────────────────── */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 64px;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  animation: float-slow 20s ease-in-out infinite;
}

.hero__noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  padding-top: 4rem;
  padding-bottom: 6rem;
}

.hero__eyebrow { margin-bottom: 2rem; animation: fade-up 0.8s 0.1s both, glow-pulse 3s 1.2s infinite; }

.hero__name {
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 9rem);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: var(--text);
  margin-bottom: 1.4rem;
  display: flex;
  flex-direction: column;
}

.hero__name-line { display: block; animation: fade-up 0.9s both; text-shadow: 0 0 30px rgba(200, 145, 74, 0.3); }
.hero__name-line:nth-child(2) { animation-delay: 0.08s; }
.hero__name-line--accent { color: var(--accent); }

.hero__handle {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 1.8rem;
  animation: fade-up 0.9s 0.2s both;
}

.hero__tagline {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.5;
  max-width: 520px;
  margin-bottom: 0.9rem;
  animation: fade-up 0.9s 0.28s both;
}

.hero__sub {
  font-size: 0.9rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  margin-bottom: 3rem;
  animation: fade-up 0.9s 0.36s both;
}

.hero__cta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fade-up 0.9s 0.44s both;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-dim);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  animation: fade-up 1s 1s both, float-medium 4s 2s infinite ease-in-out;
}

.scroll-line {
  display: block;
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, var(--text-dim), transparent);
  animation: scroll-pulse 2s 2s infinite;
}

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

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 1; }
}

/* ─── 8. ABOUT SECTION ───────────────────────────────── */

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 4rem;
  margin-top: 3.5rem;
  align-items: start;
}

.about__heading-col .section-heading { position: sticky; top: 90px; }

.about__para {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 1.4rem;
}

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

.about__stats {
  display: flex;
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.stat { display: flex; flex-direction: column; gap: 0.3rem; }

.stat__value {
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--accent);
}

.stat__label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ─── 9. SKILLS SECTION ──────────────────────────────── */

.skills { background: var(--bg-surface); }
.skills .section-heading { margin-bottom: 3.5rem; margin-top: 1rem; }

.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
}

.skill-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(200, 145, 74, 0.05) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  transition: transform var(--transition-mid), border-color var(--transition-mid),
              box-shadow var(--transition-mid), background var(--transition-mid);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-md);
  opacity: 0;
  transition: opacity var(--transition-mid);
}

.skill-card--comfortable::before { background: radial-gradient(circle at 80% 20%, var(--badge-comfortable-bg), transparent 60%); }
.skill-card--learning::before    { background: radial-gradient(circle at 80% 20%, var(--badge-learning-bg), transparent 60%); }
.skill-card--next::before        { background: radial-gradient(circle at 80% 20%, var(--badge-next-bg), transparent 60%); }

.skill-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: var(--accent);
  box-shadow: 0 20px 60px var(--accent-glow), inset 0 0 20px rgba(200, 145, 74, 0.1);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(200, 145, 74, 0.15) 100%);
}

.skill-card:hover::before { opacity: 1; }

.skill-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

/* FIX: proper container for SVG brand logos */
.skill-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.skill-card__icon svg {
  display: block;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.skill-card__badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.65rem;
  border-radius: 99px;
}

.badge--comfortable { background: var(--badge-comfortable-bg); color: var(--badge-comfortable-text); }
.badge--learning    { background: var(--badge-learning-bg);    color: var(--badge-learning-text); }
.badge--next        { background: var(--badge-next-bg);        color: var(--badge-next-text); }

.skill-card__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  position: relative;
}

.skill-card__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
  position: relative;
}

.skill-card__bar {
  height: 3px;
  background: var(--bg-elevated);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 0.4rem;
  position: relative;
}

/* FIX: fallback 0% prevents undefined --fill from showing full bar */
.skill-card__fill {
  height: 100%;
  width: var(--fill, 0%);
  background: linear-gradient(90deg, var(--accent), rgba(200, 145, 74, 0.6));
  border-radius: 99px;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 15px var(--accent-glow);
  position: relative;
}

.skill-card__fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
  border-radius: 99px;
}

/* ─── 10. PROJECTS SECTION ───────────────────────────── */

.projects .section-heading { margin-bottom: 3.5rem; margin-top: 1rem; }

.projects__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 1.2rem;
  align-items: stretch;
}

.project-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(200, 145, 74, 0.03) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  transition: transform var(--transition-mid), border-color var(--transition-mid),
              box-shadow var(--transition-mid), background var(--transition-mid);
  position: relative;
}

.project-card:hover {
  transform: translateY(-8px) scale(1.01);
  border-color: var(--accent);
  box-shadow: 0 24px 64px var(--accent-glow), inset 0 0 20px rgba(200, 145, 74, 0.08);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(200, 145, 74, 0.1) 100%);
}

.project-card--featured { border-color: var(--border-accent); position: relative; overflow: hidden; }

.project-card--featured::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.project-card--placeholder { opacity: 0.6; }
.project-card--placeholder:hover { opacity: 0.85; }

.project-card__header { display: flex; align-items: center; justify-content: space-between; }

.project-card__number {
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}

.project-card__links { display: flex; gap: 0.5rem; }

.project-card__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

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

.project-card__body { flex: 1; }

.project-card__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.8rem;
  letter-spacing: -0.02em;
}

.project-card__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.project-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.project-card__tags { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.project-card__status { font-size: 0.7rem; color: var(--accent); letter-spacing: 0.06em; }
.project-card__status--pending { color: var(--text-dim); }

/* ─── 11. CONTACT SECTION ───────────────────────────── */

.contact { background: var(--bg-surface); }

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 5rem;
  margin-top: 3.5rem;
  align-items: start;
}

.contact__sub {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 1.4rem;
  margin-bottom: 2.5rem;
  max-width: 380px;
}

.contact__socials { display: flex; flex-direction: column; gap: 0.8rem; }

.social-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--bg-card), rgba(200, 145, 74, 0.04));
  transition: all var(--transition-mid);
  position: relative;
}

.social-link:hover {
  border-color: var(--accent);
  transform: translateX(6px) translateY(-2px);
  background: linear-gradient(135deg, var(--bg-elevated), rgba(200, 145, 74, 0.12));
  box-shadow: 0 8px 24px var(--accent-glow);
}

.social-link__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-soft), rgba(200, 145, 74, 0.2));
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.social-link:hover .social-link__icon {
  transform: scale(1.15) rotate(5deg);
}

.social-link__info { display: flex; flex-direction: column; gap: 0.1rem; flex: 1; }
.social-link__label { font-weight: 600; font-size: 0.9rem; color: var(--text); }
.social-link__handle { font-size: 0.75rem; color: var(--text-muted); }

.social-link__arrow {
  color: var(--text-dim);
  font-size: 1rem;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.social-link:hover .social-link__arrow {
  transform: translate(2px, -2px);
  color: var(--accent);
}

.contact-form { display: flex; flex-direction: column; gap: 1.2rem; }
.form-group   { display: flex; flex-direction: column; gap: 0.4rem; }

.form-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.8rem 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  resize: none;
}

.form-input::placeholder { color: var(--text-dim); }

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

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

.form-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  min-height: 1.2rem;
  text-align: center;
  transition: color var(--transition-fast);
}

.form-note.success { color: var(--badge-comfortable-text); }
.form-note.error   { color: #ff6b6b; }

/* ─── 12. FOOTER ─────────────────────────────────────── */

.footer { border-top: 1px solid var(--border); padding: 2rem 0; }

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__copy  { font-size: 0.78rem; color: var(--text-dim); }
.footer__built { font-size: 0.85rem; color: var(--text-muted); }

.footer__back {
  font-size: 0.78rem;
  color: var(--text-dim);
  transition: color var(--transition-fast);
  letter-spacing: 0.05em;
}

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

/* ─── 13. ANIMATIONS & KEYFRAMES ─────────────────────── */

/* Parallax and floating animations */
@keyframes float-slow {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(2deg); }
}

@keyframes float-medium {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px var(--accent-glow), inset 0 0 20px rgba(0,0,0,0.3); }
  50% { box-shadow: 0 0 40px var(--accent-glow), inset 0 0 30px rgba(0,0,0,0.2); }
}

@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes tech-glitch {
  0%, 100% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(-2px, -2px); }
  60% { transform: translate(2px, 2px); }
  80% { transform: translate(2px, -2px); }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  filter: blur(4px);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

[data-reveal]:nth-child(2) { transition-delay: 0.08s; }
[data-reveal]:nth-child(3) { transition-delay: 0.16s; }
[data-reveal]:nth-child(4) { transition-delay: 0.24s; }
[data-reveal]:nth-child(5) { transition-delay: 0.32s; }

/* ─── 14. RESPONSIVE ─────────────────────────────────── */

@media (max-width: 900px) {
  .about__grid             { grid-template-columns: 1fr; gap: 2.5rem; }
  .about__heading-col .section-heading { position: static; }
  .projects__grid          { grid-template-columns: 1fr; }
  .contact__grid           { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 700px) {
  .nav__links          { display: none; }
  .nav__mobile-toggle  { display: flex; }
  .hero__name          { font-size: clamp(3.2rem, 14vw, 6rem); }
  .section             { padding: 5rem 0; }
  .skills__grid        { grid-template-columns: 1fr; }
  .about__stats        { gap: 1.5rem; }
  .footer__inner       { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}

@media (max-width: 480px) {
  .container           { padding: 0 1.2rem; }
  .hero__cta           { flex-direction: column; align-items: flex-start; }
  .btn                 { width: 100%; justify-content: center; }
  .theme-toggle__label { display: none; }
}