/* ═══════════════════════════════════════════════════════
   MOHAMMED HUSSAIN — PORTFOLIO CSS
   Design: Dark AI/Tech Theme with Glassmorphism
   ═══════════════════════════════════════════════════════ */

/* ── CSS VARIABLES ── */
:root {
  --bg-primary: #050812;
  --bg-secondary: #090e1e;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);

  --accent: #6c63ff;
  --accent-alt: #a855f7;
  --accent-glow: rgba(108, 99, 255, 0.4);
  --accent-warm: #f59e0b;

  --text-primary: #f0f0ff;
  --text-secondary: #8892b0;
  --text-muted: #4a5568;

  --border: rgba(255, 255, 255, 0.07);
  --border-accent: rgba(108, 99, 255, 0.3);

  --gradient: linear-gradient(135deg, #6c63ff, #a855f7);
  --gradient-text: linear-gradient(135deg, #6c63ff 0%, #a855f7 50%, #ec4899 100%);
  --gradient-glow: linear-gradient(135deg, rgba(108,99,255,0.15), rgba(168,85,247,0.15));

  --radius: 16px;
  --radius-sm: 8px;
  --radius-full: 999px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(108, 99, 255, 0.2);
}

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

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: var(--radius-full); }

/* ── CANVAS ── */
#neural-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.45;
}

/* ── CUSTOM CURSOR ── */
.cursor {
  position: fixed;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s ease, width 0.2s ease, height 0.2s ease;
  mix-blend-mode: screen;
}

.cursor-follower {
  position: fixed;
  width: 32px; height: 32px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.12s ease, width 0.3s ease, height 0.3s ease, opacity 0.3s ease;
  opacity: 0.5;
}

/* ── NAVBAR ── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(5, 8, 18, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.5px;
  margin-right: auto;
}

.nav-logo .accent { color: var(--accent); }

.nav-links {
  list-style: none;
  display: flex;
  gap: 0.25rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.nav-link.active {
  color: var(--accent);
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(108, 99, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(108, 99, 255, 0.6);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

.btn-outline:hover {
  background: rgba(108, 99, 255, 0.1);
  transform: translateY(-2px);
}

.btn-nav {
  background: var(--gradient);
  color: #fff;
  padding: 0.45rem 1.2rem;
  font-size: 0.85rem;
  box-shadow: 0 4px 20px rgba(108, 99, 255, 0.35);
}

.btn-nav:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(108, 99, 255, 0.5);
}

/* ── HAMBURGER ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── UTILITY ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── SECTIONS ── */
.section {
  padding: 7rem 0;
  position: relative;
  z-index: 1;
}

.section-alt {
  background: linear-gradient(to bottom, transparent, rgba(108, 99, 255, 0.03), transparent);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: rgba(108, 99, 255, 0.1);
  border: 1px solid rgba(108, 99, 255, 0.2);
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ════════════════════════
   HERO
   ════════════════════════ */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 0 2rem;
  max-width: 1200px;
  margin: 0 auto;
  gap: 4rem;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 8px; height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34,197,94,0.4); }
  50% { box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 1.2rem;
}

.hero-title .line {
  display: block;
}

.hero-role {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-family: 'JetBrains Mono', monospace;
  min-height: 1.8rem;
}

.typed-cursor {
  animation: blink 0.8s infinite;
  color: var(--accent);
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2.5rem;
  max-width: 540px;
}

.hero-desc strong { color: var(--text-primary); }

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.hero-socials {
  display: flex;
  gap: 1rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: var(--transition);
  text-decoration: none;
}

.social-link svg { width: 18px; height: 18px; }

.social-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(108,99,255,0.1);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(108,99,255,0.25);
}

/* ── HERO VISUAL ── */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.avatar-ring {
  position: relative;
  width: 280px; height: 280px;
}

.avatar-glow {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: var(--gradient-glow);
  filter: blur(40px);
  animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

.avatar-inner {
  position: relative;
  width: 100%; height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(108,99,255,0.15), rgba(168,85,247,0.1));
  border: 1.5px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.avatar-inner::before {
  content: '';
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  border: 1px solid rgba(108,99,255,0.2);
  animation: spin-slow 12s linear infinite;
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.avatar-initials {
  font-size: 5rem;
  font-weight: 900;
  letter-spacing: -3px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 1;
}

/* ── FLOATING CARDS ── */
.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  box-shadow: var(--shadow);
}

.fc-icon { font-size: 1.1rem; }

.fc-1 { top: 0; right: -60px; animation: float-a 4s ease-in-out infinite; }
.fc-2 { bottom: 40px; right: -80px; animation: float-b 4s ease-in-out 1.5s infinite; }
.fc-3 { top: 100px; left: -80px; animation: float-a 4s ease-in-out 0.8s infinite; }

@keyframes float-a {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

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

/* ── SCROLL INDICATOR ── */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ════════════════════════
   ABOUT
   ════════════════════════ */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
  font-size: 1.02rem;
  line-height: 1.85;
}

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

.about-stats {
  display: flex;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.stat-card {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-3px);
}

.stat-number {
  display: block;
  font-size: 2.2rem;
  font-weight: 900;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

/* ── DETAIL CARDS ── */
.about-details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  transition: var(--transition);
}

.detail-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateX(4px);
}

.detail-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.detail-info h4 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.detail-info p, .detail-info span {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.detail-info strong { color: var(--text-primary); }

.edu-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin-bottom: 0.75rem;
}

.edu-item:last-child { margin-bottom: 0; }

.edu-item strong {
  color: var(--text-primary);
  font-size: 0.92rem;
}

.edu-item span {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.edu-year {
  font-size: 0.75rem !important;
  color: var(--accent) !important;
  font-weight: 600;
}

/* ════════════════════════
   SKILLS
   ════════════════════════ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
}

.skill-category.visible {
  opacity: 1;
  transform: translateY(0);
}

.skill-category:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.skill-category.skill-highlight {
  border-color: rgba(108,99,255,0.3);
  background: linear-gradient(135deg, rgba(108,99,255,0.07), rgba(168,85,247,0.04));
}

.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.skill-cat-icon {
  font-size: 1.4rem;
}

.skill-cat-header h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  transition: var(--transition);
  font-family: 'JetBrains Mono', monospace;
}

.tag:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(108,99,255,0.08);
}

.tag-accent {
  color: var(--accent);
  border-color: rgba(108,99,255,0.25);
  background: rgba(108,99,255,0.08);
}

.tag-accent:hover {
  background: rgba(108,99,255,0.18);
  border-color: var(--accent);
}

.tag-sm {
  font-size: 0.72rem;
  padding: 0.2rem 0.6rem;
}

/* ════════════════════════
   PROJECTS
   ════════════════════════ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
}

.project-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: var(--transition);
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
}

.project-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.project-card-glow {
  position: absolute;
  top: -80px; right: -80px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(108,99,255,0.12), transparent 70%);
  pointer-events: none;
  transition: var(--transition-slow);
}

.project-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}

.project-card:hover .project-card-glow {
  opacity: 1.5;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.project-number {
  font-size: 0.75rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.project-links {
  display: flex;
  gap: 0.75rem;
}

.project-link {
  color: var(--text-muted);
  transition: var(--transition);
  display: flex;
}

.project-link svg { width: 18px; height: 18px; }

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

.project-title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.project-subtitle {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1rem;
  font-family: 'JetBrains Mono', monospace;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.project-desc strong { color: var(--text-primary); }

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* ════════════════════════
   RESEARCH
   ════════════════════════ */
.research-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.research-card {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: var(--transition);
  opacity: 0;
  transform: translateX(-20px);
}

.research-card.visible {
  opacity: 1;
  transform: translateX(0);
}

.research-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateX(6px);
  box-shadow: var(--shadow-glow);
}

.research-year-badge {
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: rgba(108,99,255,0.1);
  border: 1px solid rgba(108,99,255,0.2);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.research-content {
  flex: 1;
}

.research-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  line-height: 1.4;
}

.research-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.research-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

/* ════════════════════════
   ACHIEVEMENTS
   ════════════════════════ */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.achievement-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: var(--transition);
  opacity: 0;
  transform: scale(0.95);
}

.achievement-card.visible {
  opacity: 1;
  transform: scale(1);
}

.achievement-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-glow);
}

.achievement-medal {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
  filter: drop-shadow(0 4px 12px rgba(245,158,11,0.3));
}

.achievement-content h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.achievement-event {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
}

.achievement-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Clickable achievement cards */
.achievement-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.cert-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.03em;
  opacity: 0;
  transform: translateY(4px);
  transition: var(--transition);
}

.achievement-card-link:hover .cert-link {
  opacity: 1;
  transform: translateY(0);
}

/* ════════════════════════
   CONTACT
   ════════════════════════ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.contact-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  background: rgba(108,99,255,0.1);
  border: 1px solid rgba(108,99,255,0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

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

.contact-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.contact-value {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition);
}

a.contact-value:hover { color: var(--accent); }

.contact-socials {
  display: flex;
  gap: 1rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

/* ── FORM ── */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: rgba(108,99,255,0.05);
  box-shadow: 0 0 0 3px rgba(108,99,255,0.1);
}

.form-success {
  display: none;
  text-align: center;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #22c55e;
  font-weight: 600;
}

/* ════════════════════════
   FOOTER
   ════════════════════════ */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  position: relative;
  z-index: 1;
}

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

.footer p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer strong { color: var(--text-secondary); }

.footer-note { color: var(--text-muted); font-size: 0.82rem; }

/* ════════════════════════
   ANIMATIONS / ENTRANCE
   ════════════════════════ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-content > * {
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.hero-badge { animation-delay: 0.1s; }
.hero-title { animation-delay: 0.2s; }
.hero-role { animation-delay: 0.3s; }
.hero-desc { animation-delay: 0.4s; }
.hero-actions { animation-delay: 0.5s; }
.hero-socials { animation-delay: 0.6s; }

.hero-visual {
  animation: fadeInUp 0.9s cubic-bezier(0.4, 0, 0.2, 1) 0.3s both;
}

/* ════════════════════════
   RESPONSIVE
   ════════════════════════ */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 8rem;
    padding-bottom: 4rem;
  }

  .hero-content { order: 2; }
  .hero-visual { order: 1; }

  .hero-desc { margin: 0 auto 2.5rem; }
  .hero-actions { justify-content: center; }
  .hero-socials { justify-content: center; }

  .fc-1, .fc-2, .fc-3 { display: none; }

  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }

  .nav-links { display: none; }
  .hamburger { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(5,8,18,0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
  }
}

@media (max-width: 600px) {
  .section { padding: 5rem 0; }
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .achievements-grid { grid-template-columns: 1fr 1fr; }
  .about-stats { flex-direction: column; gap: 1rem; }
  .research-card { flex-wrap: wrap; gap: 1rem; }
  .research-icon { display: none; }
}

@media (max-width: 420px) {
  .achievements-grid { grid-template-columns: 1fr; }
  .container { padding: 0 1.25rem; }
  .hero { padding-left: 1.25rem; padding-right: 1.25rem; }
}