/* ═══════════════════════════════════════════════════════════
   SHREYASH DATTATRAY DESAI — PREMIUM PORTFOLIO
   Dark Cyber | Glassmorphism | Neon Accents
   ═══════════════════════════════════════════════════════════ */

/* ── CSS CUSTOM PROPERTIES ── */
:root {
  --bg:           #010208;
  --surface:      #080d1a;
  --card-bg:      rgba(255,255,255,0.03);
  --card-border:  rgba(255,255,255,0.06);
  --primary:      #7C3AED;
  --secondary:    #0891B2;
  --highlight:    #DB2777;
  --green:        #059669;
  --text:         #F1F5F9;
  --muted:        #64748B;
  --sidebar-w:    80px;
  --sidebar-w-lg: 220px;
  --transition:   0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --glow-purple:  0 0 40px rgba(124,58,237,0.30);
  --glow-cyan:    0 0 40px rgba(8,145,178,0.30);
  --glow-pink:    0 0 40px rgba(219,39,119,0.30);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  background-color: var(--bg);
  background-image: radial-gradient(ellipse at 20% 50%, rgba(124,58,237,0.04) 0%, transparent 60%),
                    radial-gradient(ellipse at 80% 20%, rgba(8,145,178,0.04) 0%, transparent 60%);
  color: var(--text);
  font-family: 'Inter', -apple-system, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

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

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

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: #04060f; }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #9D4EDD; }

/* ════════════════════════════════════════
   LOADING SCREEN
   ════════════════════════════════════════ */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #010208;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.loader-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.loader-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 64px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: loader-pulse 1.5s ease-in-out infinite;
}

@keyframes loader-pulse {
  0%, 100% { filter: drop-shadow(0 0 20px rgba(139,92,246,0.6)); }
  50%       { filter: drop-shadow(0 0 50px rgba(6,182,212,0.8)); }
}

.loader-bar-wrapper {
  width: 220px;
  height: 3px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  overflow: hidden;
}
.loader-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--highlight));
  border-radius: 2px;
  transition: width 0.1s linear;
}
.loader-text {
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ════════════════════════════════════════
   CURSOR
   ════════════════════════════════════════ */
.cursor {
  position: fixed;
  width: 12px;
  height: 12px;
  background: var(--primary);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.1s, background 0.2s, width 0.2s, height 0.2s;
  mix-blend-mode: screen;
}
.cursor-trail {
  position: fixed;
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(139,92,246,0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9997;
  transform: translate(-50%, -50%);
  transition: transform 0.25s cubic-bezier(0.2, 1, 0.2, 1), width 0.25s, height 0.25s, border-color 0.2s;
}
.cursor.hovering { width: 24px; height: 24px; background: var(--highlight); }
.cursor-trail.hovering { width: 60px; height: 60px; border-color: rgba(236,72,153,0.4); }
body * { cursor: none !important; }

/* ════════════════════════════════════════
   PARTICLE CANVAS
   ════════════════════════════════════════ */
.particle-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.6;
}

/* ════════════════════════════════════════
   MOUSE BLOB
   ════════════════════════════════════════ */
.mouse-blob {
  position: fixed;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139,92,246,0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  transform: translate(-50%, -50%);
  transition: transform 0.8s cubic-bezier(0.2, 1, 0.2, 1);
  will-change: transform;
}

/* ════════════════════════════════════════
   SIDEBAR NAV
   ════════════════════════════════════════ */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: rgba(2,4,12,0.92);
  backdrop-filter: blur(24px);
  border-right: 1px solid rgba(255,255,255,0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 28px 0;
  gap: 0;
  z-index: 500;
  transition: width var(--transition);
  overflow: hidden;
}

.sidebar:hover {
  width: 200px;
}

.sidebar-logo {
  margin-bottom: 32px;
}
.logo-text {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
  padding: 0 12px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border-radius: 12px;
  color: var(--muted);
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.nav-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(139,92,246,0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition);
  border-radius: 12px;
}
.nav-item:hover, .nav-item.active {
  color: var(--text);
}
.nav-item:hover::before, .nav-item.active::before { opacity: 1; }
.nav-item.active { color: var(--primary); }

.nav-icon {
  font-size: 1.1rem;
  min-width: 20px;
  text-align: center;
  flex-shrink: 0;
}
.nav-label {
  font-size: 0.875rem;
  font-weight: 500;
  opacity: 0;
  transition: opacity var(--transition);
}
.sidebar:hover .nav-label { opacity: 1; }

.sidebar-social {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 20px;
  width: 100%;
}
.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  transition: all var(--transition);
  border: 1px solid transparent;
}
.social-link svg { width: 16px; height: 16px; }
.social-link:hover {
  background: rgba(139,92,246,0.15);
  color: var(--primary);
  border-color: rgba(139,92,246,0.3);
  transform: translateY(-2px);
}

/* ════════════════════════════════════════
   MOBILE NAV
   ════════════════════════════════════════ */
.mobile-nav {
  display: none;
  position: fixed;
  top: 16px;
  left: 16px;
  right: 16px;
  z-index: 600;
  border-radius: 16px;
  background: rgba(2,4,12,0.95);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.05);
  padding: 14px 20px;
}
.mobile-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mobile-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.mobile-links {
  display: flex;
  gap: 16px;
}
.mobile-links a {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 500;
  transition: color var(--transition);
}
.mobile-links a:hover { color: var(--text); }
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* FULL MENU OVERLAY */
.mobile-full-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 700;
  background: rgba(1,2,8,0.98);
  backdrop-filter: blur(30px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.mobile-full-menu.open { display: flex; }

.menu-close {
  position: absolute;
  top: 28px;
  right: 28px;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--muted);
  cursor: none !important;
  transition: color var(--transition);
}
.menu-close:hover { color: var(--highlight); }

.menu-links { display: flex; flex-direction: column; gap: 8px; text-align: center; }
.menu-link {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 700;
  color: var(--muted);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 16px;
}
.menu-link::before {
  content: attr(data-num);
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  color: var(--primary);
  font-weight: 400;
  min-width: 28px;
}
.menu-link:hover { color: var(--text); transform: translateX(8px); }

/* ════════════════════════════════════════
   MAIN CONTENT
   ════════════════════════════════════════ */
.main-content {
  margin-left: var(--sidebar-w);
  position: relative;
  z-index: 10;
}

/* ════════════════════════════════════════
   SECTIONS
   ════════════════════════════════════════ */
.section { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; position: relative; }
.section-inner { max-width: 1100px; margin: 0 auto; padding: 100px 60px; width: 100%; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(139,92,246,0.1);
  border: 1px solid rgba(139,92,246,0.25);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 16px;
}
.section-subtitle {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ── GRADIENT TEXT ── */
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── GLASS CARD ── */
.glass-card {
  background: rgba(255,255,255,0.025);
  border: 1px solid rgba(255,255,255,0.055);
  border-radius: 20px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.025) 0%, transparent 100%);
  pointer-events: none;
  border-radius: inherit;
}
.glass-card:hover {
  border-color: rgba(124,58,237,0.28);
  transform: translateY(-4px);
  box-shadow: 0 0 35px rgba(124,58,237,0.20), 0 16px 40px rgba(0,0,0,0.5);
}

/* ── REVEAL ANIMATION ── */
[data-reveal] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}
[data-delay="100"] { transition-delay: 0.1s; }
[data-delay="150"] { transition-delay: 0.15s; }
[data-delay="200"] { transition-delay: 0.2s; }
[data-delay="300"] { transition-delay: 0.3s; }

/* ════════════════════════════════════════
   HERO SECTION
   ════════════════════════════════════════ */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 0;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 60px;
  width: 100%;
  min-height: 100vh;
}

/* HERO LEFT */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--green);
  background: rgba(16,185,129,0.08);
  border: 1px solid rgba(16,185,129,0.2);
  padding: 8px 16px;
  border-radius: 50px;
  margin-bottom: 24px;
}
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
  50%       { box-shadow: 0 0 0 8px rgba(16,185,129,0); }
}

.hero-greeting {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 8px;
  font-weight: 400;
}

.hero-name {
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: 20px;
}
.name-line { display: block; }

.hero-titles {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  color: var(--secondary);
  font-weight: 500;
  margin-bottom: 24px;
  min-height: 1.8em;
}
.title-prefix { color: var(--muted); }
.typed-cursor {
  color: var(--primary);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-desc {
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 520px;
}
.hero-desc strong {
  color: var(--text);
  font-weight: 600;
}

/* CTA BUTTONS */
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  border: 1.5px solid transparent;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #6D28D9);
  color: #fff;
  box-shadow: 0 0 30px rgba(139,92,246,0.4);
}
.btn-primary:hover {
  box-shadow: 0 0 50px rgba(139,92,246,0.6), 0 8px 30px rgba(0,0,0,0.3);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(6,182,212,0.1);
  border-color: rgba(6,182,212,0.3);
  color: var(--secondary);
}
.btn-secondary:hover {
  background: rgba(6,182,212,0.2);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  border-color: var(--card-border);
  color: var(--muted);
}
.btn-ghost:hover {
  border-color: rgba(255,255,255,0.2);
  color: var(--text);
  background: rgba(255,255,255,0.04);
  transform: translateY(-2px);
}

.btn-full { width: 100%; justify-content: center; }

/* HERO SOCIALS */
.hero-socials {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-social-link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
  transition: all var(--transition);
  padding: 8px 0;
}
.hero-social-link svg { width: 18px; height: 18px; }
.hero-social-link:hover { color: var(--primary); transform: translateY(-2px); }

/* ── HERO RIGHT — Photo ── */
.hero-right { display: flex; justify-content: center; align-items: center; }

.hero-photo-wrapper {
  position: relative;
  width: 380px;
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* GLOW RINGS */
.glow-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid;
  animation: ring-spin linear infinite;
}
.glow-ring-1 {
  width: 340px; height: 340px;
  border-color: rgba(124,58,237,0.25);
  animation-duration: 12s;
}
.glow-ring-2 {
  width: 380px; height: 380px;
  border-color: rgba(8,145,178,0.12);
  animation-duration: 18s;
  animation-direction: reverse;
}
.glow-ring-3 {
  width: 420px; height: 420px;
  border-color: rgba(219,39,119,0.07);
  animation-duration: 25s;
}
@keyframes ring-spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* PHOTO FRAME */
.photo-frame {
  width: 290px;
  height: 290px;
  border-radius: 50%;
  border: 2px solid rgba(124,58,237,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
  box-shadow:
    0 0 0 6px rgba(124,58,237,0.08),
    0 0 40px rgba(124,58,237,0.35),
    0 0 80px rgba(8,145,178,0.15),
    inset 0 0 30px rgba(124,58,237,0.08);
  overflow: hidden;
  padding: 4px;
  background: linear-gradient(135deg, rgba(124,58,237,0.3), rgba(8,145,178,0.2));
}

.profile-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
  display: block;
  filter: brightness(0.95) contrast(1.05) saturate(0.95);
  transition: filter 0.4s ease, transform 0.4s ease;
}
.photo-frame:hover .profile-photo {
  filter: brightness(1.02) contrast(1.02) saturate(1.05);
  transform: scale(1.03);
}

/* FLOATING TECH ICONS */
.floating-icon {
  position: absolute;
  font-size: 1.5rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 10px;
  z-index: 5;
  backdrop-filter: blur(8px);
  animation: float-around linear infinite;
}
.fi-python { top: 5%;  left: 5%;  animation-duration: 7s;  animation-delay: 0s; }
.fi-aws    { top: 10%; right: 3%; animation-duration: 9s;  animation-delay: -2s; }
.fi-ai     { bottom: 12%; right: 2%; animation-duration: 8s;  animation-delay: -4s; }
.fi-iot    { bottom: 5%;  left: 5%;  animation-duration: 10s; animation-delay: -1s; }
.fi-code   { top: 50%; left: -2%; animation-duration: 6s;  animation-delay: -3s; }

@keyframes float-around {
  0%,100% { transform: translateY(0px) rotate(0deg); }
  33%     { transform: translateY(-12px) rotate(5deg); }
  66%     { transform: translateY(6px) rotate(-3deg); }
}

/* FLOATING CARDS */
.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(15,23,42,0.85);
  backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 12px 16px;
  z-index: 10;
  animation: float-card ease-in-out infinite;
  min-width: 160px;
}
.fc-icon { font-size: 1.4rem; flex-shrink: 0; }
.fc-info { display: flex; flex-direction: column; }
.fc-title { font-size: 0.8rem; font-weight: 700; color: var(--text); line-height: 1.2; }
.fc-sub   { font-size: 0.7rem; color: var(--muted); }

.fc-top-left  { top: -20px; left: -60px; animation-duration: 5s; animation-delay: 0s; }
.fc-bottom-right { bottom: -20px; right: -50px; animation-duration: 6s; animation-delay: -2s; }
.fc-bottom-left { bottom: 40px; left: -70px; animation-duration: 7s; animation-delay: -1s; }

@keyframes float-card {
  0%,100% { transform: translateY(0px); }
  50%     { transform: translateY(-10px); }
}

/* SCROLL INDICATOR */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: scroll-bounce 2s ease-in-out infinite;
}
.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(180deg, var(--muted), transparent);
}
@keyframes scroll-bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%     { transform: translateX(-50%) translateY(8px); }
}

/* ════════════════════════════════════════
   ABOUT SECTION
   ════════════════════════════════════════ */
.about-section { background: linear-gradient(180deg, transparent 0%, rgba(139,92,246,0.02) 50%, transparent 100%); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-para {
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 20px;
  line-height: 1.8;
}
.highlight-purple { color: var(--primary); font-weight: 600; }
.highlight-cyan   { color: var(--secondary); font-weight: 600; }

.about-interests { margin-top: 32px; }
.about-interests h3 { font-size: 0.9rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 12px; }
.interest-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.interest-tag {
  padding: 8px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--muted);
  transition: all var(--transition);
}
.interest-tag:hover {
  border-color: rgba(139,92,246,0.3);
  color: var(--text);
  background: rgba(139,92,246,0.08);
}

.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.about-card {
  padding: 24px;
  border-radius: 16px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: opacity var(--transition);
}
.about-card:hover { transform: translateY(-4px); border-color: rgba(139,92,246,0.25); }
.about-card:hover::before { opacity: 1; }
.about-card-icon { font-size: 1.8rem; margin-bottom: 12px; }
.about-card h3 { font-size: 1rem; margin-bottom: 8px; }
.about-card p { font-size: 0.85rem; color: var(--muted); line-height: 1.6; }

/* ════════════════════════════════════════
   EDUCATION TIMELINE
   ════════════════════════════════════════ */
.education-section { background: linear-gradient(180deg, transparent, rgba(6,182,212,0.02), transparent); }

.timeline { display: flex; flex-direction: column; gap: 0; position: relative; max-width: 820px; margin: 0 auto; }

.timeline-item { display: grid; grid-template-columns: 48px 1fr; gap: 24px; position: relative; }

.timeline-marker { display: flex; flex-direction: column; align-items: center; }
.tl-dot {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--muted);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--muted);
  flex-shrink: 0;
  margin-top: 28px;
  transition: all var(--transition);
  z-index: 1;
}
.tl-dot.active {
  background: var(--primary);
  box-shadow: 0 0 0 2px var(--primary), 0 0 20px rgba(139,92,246,0.5);
  animation: dot-glow 2s ease-in-out infinite;
}
@keyframes dot-glow {
  0%,100% { box-shadow: 0 0 0 2px var(--primary), 0 0 20px rgba(139,92,246,0.5); }
  50%     { box-shadow: 0 0 0 4px var(--primary), 0 0 40px rgba(139,92,246,0.8); }
}
.tl-line {
  flex: 1;
  width: 1px;
  background: linear-gradient(180deg, var(--muted), transparent);
  opacity: 0.3;
  margin: 8px 0;
}

.timeline-card { padding: 28px; margin-bottom: 32px; }
.active-card {
  border-color: rgba(124,58,237,0.35);
  box-shadow: 0 0 35px rgba(124,58,237,0.20), 0 8px 30px rgba(0,0,0,0.5);
}

.tl-header { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; }
.tl-icon { font-size: 1.8rem; flex-shrink: 0; }
.tl-title-block { flex: 1; }
.tl-title-block h3 { font-size: 1.1rem; margin-bottom: 4px; }
.tl-degree { font-size: 0.85rem; color: var(--secondary); font-weight: 500; }

.tl-badge {
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(148,163,184,0.1);
  color: var(--muted);
  border: 1px solid rgba(148,163,184,0.2);
  white-space: nowrap;
  height: fit-content;
}
.tl-badge.in-progress {
  background: rgba(139,92,246,0.1);
  color: var(--primary);
  border-color: rgba(139,92,246,0.25);
}

.tl-body p { color: var(--muted); font-size: 0.92rem; margin-bottom: 16px; }

.tl-highlights {
  display: flex;
  gap: 24px;
  margin-bottom: 16px;
}
.tl-highlight-item { text-align: center; }
.highlight-num {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.highlight-label { font-size: 0.75rem; color: var(--muted); }

.tl-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tl-tag {
  padding: 4px 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--muted);
}
.tl-tag.accent {
  background: rgba(139,92,246,0.08);
  border-color: rgba(139,92,246,0.2);
  color: var(--primary);
}

/* ════════════════════════════════════════
   SKILLS SECTION
   ════════════════════════════════════════ */
.skills-section { background: linear-gradient(180deg, transparent, rgba(236,72,153,0.02), transparent); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.skill-category { padding: 28px; }
.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.skill-cat-icon { font-size: 1.4rem; }
.skill-cat-header h3 { font-size: 1rem; font-weight: 700; }

.skill-bars { display: flex; flex-direction: column; gap: 14px; }
.skill-bar-item {}
.skill-bar-info { display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 0.85rem; color: var(--text); }
.skill-pct { color: var(--muted); font-size: 0.8rem; }
.skill-bar-track {
  height: 5px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
}
.skill-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--bar-color, var(--primary));
  border-radius: 3px;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 10px var(--bar-color, var(--primary));
}

.soft-skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.soft-skill-pill {
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 500;
  background: linear-gradient(135deg, rgba(139,92,246,0.1), rgba(6,182,212,0.1));
  border: 1px solid rgba(139,92,246,0.2);
  color: var(--text);
  transition: all var(--transition);
}
.soft-skill-pill:hover {
  background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(6,182,212,0.2));
  transform: translateY(-2px);
}

/* MARQUEE */
.tech-marquee {
  overflow: hidden;
  padding: 20px 0;
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
  position: relative;
}
.tech-marquee::before, .tech-marquee::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 100px;
  z-index: 2;
}
.tech-marquee::before { left: 0; background: linear-gradient(90deg, var(--bg), transparent); }
.tech-marquee::after  { right: 0; background: linear-gradient(-90deg, var(--bg), transparent); }

.marquee-track {
  display: flex;
  gap: 40px;
  animation: marquee-scroll 25s linear infinite;
  width: max-content;
}
.marquee-item {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.9rem;
  white-space: nowrap;
  transition: color var(--transition);
}
.marquee-item:hover { color: var(--primary); }

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

/* ════════════════════════════════════════
   LEADERSHIP SECTION
   ════════════════════════════════════════ */
.leadership-section { background: linear-gradient(180deg, transparent, rgba(139,92,246,0.03), transparent); }

.leadership-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.leader-card { padding: 32px; position: relative; overflow: visible; }
.leader-card-glow {
  position: absolute;
  inset: -1px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  z-index: -1;
  opacity: 0.3;
  filter: blur(8px);
}
.leader-card.featured {
  border-color: rgba(139,92,246,0.4);
  box-shadow: var(--glow-purple);
}
.leader-badge {
  position: absolute;
  top: -12px; left: 20px;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--primary), #6D28D9);
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}
.leader-icon { font-size: 2.5rem; margin-bottom: 16px; }
.leader-card h3 { font-size: 1.1rem; margin-bottom: 12px; }
.leader-card p { font-size: 0.9rem; color: var(--muted); line-height: 1.7; margin-bottom: 20px; }
.leader-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.leader-tags span {
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  background: rgba(139,92,246,0.08);
  border: 1px solid rgba(139,92,246,0.18);
  color: var(--primary);
}

.contributions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.contribution-item {
  text-align: center;
  padding: 28px 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  transition: all var(--transition);
}
.contribution-item:hover { transform: translateY(-4px); border-color: rgba(139,92,246,0.25); }
.cont-icon { font-size: 2rem; margin-bottom: 12px; }
.contribution-item h4 { font-size: 0.95rem; margin-bottom: 8px; }
.contribution-item p { font-size: 0.82rem; color: var(--muted); line-height: 1.6; }

/* ════════════════════════════════════════
   PROJECTS SECTION
   ════════════════════════════════════════ */
.projects-section { background: linear-gradient(180deg, transparent, rgba(6,182,212,0.02), transparent); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card { padding: 0; overflow: hidden; }
.project-glow {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glow-color), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.project-card:hover .project-glow { opacity: 1; }

.project-visual {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.project-icon-large { font-size: 3.5rem; position: relative; z-index: 2; }
.project-number {
  position: absolute;
  bottom: 8px;
  right: 12px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 4rem;
  font-weight: 900;
  color: rgba(255,255,255,0.04);
  line-height: 1;
  z-index: 1;
}

.project-body { padding: 24px; }
.project-featured-tag {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary);
  margin-bottom: 8px;
}
.project-body h3 { font-size: 1.15rem; margin-bottom: 10px; }
.project-body p { font-size: 0.88rem; color: var(--muted); line-height: 1.7; margin-bottom: 16px; }

.project-tech-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.tech-tag {
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
  background: color-mix(in srgb, var(--tag-color) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--tag-color) 25%, transparent);
  color: var(--tag-color);
}

.project-links { display: flex; gap: 10px; }
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  transition: all var(--transition);
}
.project-link svg { width: 14px; height: 14px; }
.btn-project-ghost {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  color: var(--muted);
}
.btn-project-ghost:hover { border-color: rgba(255,255,255,0.2); color: var(--text); }
.btn-project-primary {
  background: linear-gradient(135deg, var(--primary), #6D28D9);
  color: #fff;
}
.btn-project-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(139,92,246,0.4); }

.featured-project { grid-column: span 2; }
.featured-project .project-visual { height: 200px; }

/* ════════════════════════════════════════
   EXPERIENCE SECTION
   ════════════════════════════════════════ */
.experience-section { min-height: auto; padding: 40px 0; }
.experience-content { text-align: center; }
.experience-desc {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.opportunity-cards {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}
.opp-card {
  padding: 28px 32px;
  text-align: center;
  min-width: 200px;
}
.opp-icon { font-size: 2rem; margin-bottom: 12px; }
.opp-card h4 { font-size: 0.95rem; margin-bottom: 6px; }
.opp-card p { font-size: 0.82rem; color: var(--muted); margin-bottom: 16px; }
.opp-status {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}
.opp-status.available {
  background: rgba(16,185,129,0.1);
  color: var(--green);
  border: 1px solid rgba(16,185,129,0.25);
}
.opp-status.future {
  background: rgba(6,182,212,0.1);
  color: var(--secondary);
  border: 1px solid rgba(6,182,212,0.25);
}

/* ════════════════════════════════════════
   ACHIEVEMENTS / STATS
   ════════════════════════════════════════ */
.achievements-section { min-height: auto; padding: 40px 0; background: linear-gradient(180deg, transparent, rgba(139,92,246,0.03), transparent); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-card {
  padding: 36px 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.stat-glow {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 60px;
  background: radial-gradient(circle, var(--stat-color), transparent 70%);
  opacity: 0.15;
  filter: blur(15px);
  transition: opacity var(--transition);
}
.stat-card:hover .stat-glow { opacity: 0.4; }

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--stat-color);
  line-height: 1;
  margin-bottom: 8px;
  filter: drop-shadow(0 0 20px var(--stat-color));
}
.stat-label { font-size: 0.9rem; color: var(--muted); font-weight: 500; margin-bottom: 16px; }
.stat-icon { font-size: 1.5rem; opacity: 0.6; }

/* ════════════════════════════════════════
   CONTACT SECTION
   ════════════════════════════════════════ */
.contact-section { background: linear-gradient(180deg, transparent, rgba(236,72,153,0.02), transparent); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 40px;
  align-items: start;
}

.contact-info-card { padding: 36px; }
.contact-info-card h3 { font-size: 1.3rem; margin-bottom: 24px; }

.contact-details { display: flex; flex-direction: column; gap: 16px; margin-bottom: 28px; }
.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  border-radius: 12px;
  background: rgba(255,255,255,0.02);
  border: 1px solid transparent;
  transition: all var(--transition);
}
.contact-detail-item:hover {
  border-color: rgba(139,92,246,0.2);
  background: rgba(139,92,246,0.05);
  transform: translateX(4px);
}
.contact-detail-icon { font-size: 1.3rem; flex-shrink: 0; }
.contact-detail-text { display: flex; flex-direction: column; }
.contact-detail-label { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; }
.contact-detail-value { font-size: 0.9rem; color: var(--text); font-weight: 500; }

.contact-socials { display: flex; gap: 12px; }
.contact-social-link {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  transition: all var(--transition);
}
.contact-social-link svg { width: 18px; height: 18px; }
.contact-social-link:hover {
  background: rgba(139,92,246,0.12);
  border-color: rgba(139,92,246,0.3);
  color: var(--primary);
  transform: translateY(-3px);
}

/* CONTACT FORM */
.contact-form { padding: 36px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  transition: all var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(148,163,184,0.5); }
.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(139,92,246,0.4);
  background: rgba(139,92,246,0.04);
  box-shadow: 0 0 0 3px rgba(139,92,246,0.1);
}
.form-group textarea { min-height: 130px; }

.form-success {
  margin-top: 12px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--green);
}

/* ════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════ */
.footer {
  border-top: 1px solid var(--card-border);
  padding: 40px 60px;
  margin-left: var(--sidebar-w);
  text-align: center;
  position: relative;
  z-index: 10;
}
.footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}
.footer-tagline { color: var(--muted); font-size: 0.9rem; margin-bottom: 6px; }
.footer-copy { color: rgba(148,163,184,0.4); font-size: 0.8rem; }

/* ════════════════════════════════════════
   MAGNETIC BUTTON EFFECT
   ════════════════════════════════════════ */
.magnetic-btn { will-change: transform; }

/* ════════════════════════════════════════
   HIGHLIGHT TEXT
   ════════════════════════════════════════ */
::selection {
  background: rgba(139,92,246,0.3);
  color: var(--text);
}

/* ════════════════════════════════════════
   RESPONSIVE — TABLET
   ════════════════════════════════════════ */
@media (max-width: 1100px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .contributions-grid { grid-template-columns: repeat(2, 1fr); }
  .leadership-grid { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .featured-project { grid-column: span 2; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .sidebar { display: none; }
  .mobile-nav { display: flex; }
  .main-content, .footer { margin-left: 0; }
  .section-inner { padding: 100px 28px 60px; }

  .hero-inner {
    grid-template-columns: 1fr;
    padding: 120px 28px 60px;
    gap: 60px;
    text-align: center;
  }
  .hero-cta { justify-content: center; }
  .hero-socials { justify-content: center; }
  .hero-desc { margin: 0 auto 36px; }

  .hero-right { display: none; }

  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-cards { grid-template-columns: 1fr 1fr; }

  .contact-grid { grid-template-columns: 1fr; }
  .mobile-links { display: none; }
  .footer { margin-left: 0; padding: 40px 28px; }
}

@media (max-width: 700px) {
  .skills-grid { grid-template-columns: 1fr; }
  .leadership-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .featured-project { grid-column: span 1; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contributions-grid { grid-template-columns: 1fr 1fr; }
  .opportunity-cards { flex-direction: column; align-items: center; }
  .about-cards { grid-template-columns: 1fr; }
  .tl-highlights { gap: 14px; }
  .hero-photo-wrapper { width: 280px; height: 280px; }
  .glow-ring-1 { width: 240px; height: 240px; }
  .glow-ring-2 { width: 280px; height: 280px; }
  .glow-ring-3 { width: 320px; height: 320px; }
  .photo-frame { width: 220px; height: 220px; }
}

@media (max-width: 500px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .contributions-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; }
  .btn { justify-content: center; }
}

/* ════════════════════════════════════════
   DECORATIVE GRID BG
   ════════════════════════════════════════ */
.section::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.008) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.008) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: -1;
}