/* =====================================================
   PORTFOLIO — Sai Krishna Gorijala
   ===================================================== */

/* ---- CSS Custom Properties ---- */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161f;
  --bg-card-hover: #1c1c28;

  --accent: #7c3aed;
  --accent-light: #a855f7;
  --accent-glow: rgba(124, 58, 237, 0.35);
  --accent-2: #06b6d4;
  --accent-2-glow: rgba(6, 182, 212, 0.25);

  --text-primary: #f1f0ff;
  --text-secondary: #9b9abd;
  --text-muted: #5c5a7a;

  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(124, 58, 237, 0.4);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-card: 0 4px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 60px var(--accent-glow);

  --font-body: 'Inter', sans-serif;
  --font-code: 'Fira Code', monospace;

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

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img, svg { display: block; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* =====================================================
   LAYOUT UTILITIES
   ===================================================== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-dark {
  background: var(--bg-secondary);
}

.section-header {
  margin-bottom: 60px;
}

.section-label {
  font-family: var(--font-code);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-light);
  display: block;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  border: none;
  box-shadow: 0 4px 24px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 36px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--accent-light);
  border: 1.5px solid var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  border: 1.5px solid var(--border);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* =====================================================
   NAVIGATION
   ===================================================== */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition);
  padding: 16px 0;
}

#navbar.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  box-shadow: 0 4px 40px rgba(0,0,0,0.4);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-right: auto;
}

.nav-links {
  display: flex;
  gap: 4px;
}

.nav-link {
  padding: 6px 14px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 50px;
  transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: rgba(124,58,237,0.15);
}

.nav-resume-btn {
  font-size: 0.82rem;
  padding: 8px 18px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.accent { color: var(--accent-light); }

/* =====================================================
   HERO
   ===================================================== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 24px 60px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
  animation: float 8s ease-in-out infinite;
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(124,58,237,0.5), transparent 65%);
  top: -150px; left: -150px;
  animation-delay: 0s;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(6,182,212,0.4), transparent 65%);
  top: 30%; right: -100px;
  animation-delay: -3s;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(168,85,247,0.3), transparent 65%);
  bottom: 0; left: 40%;
  animation-delay: -5s;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.3);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-light);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease both;
}

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

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  display: flex;
  flex-direction: column;
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 20px;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-greeting {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0;
  margin-bottom: 8px;
}

.hero-name {
  background: linear-gradient(135deg, var(--text-primary), rgba(241,240,255,0.7));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.accent-name {
  background: linear-gradient(135deg, var(--accent), var(--accent-light), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-role {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-family: var(--font-code);
  color: var(--text-secondary);
  margin-bottom: 24px;
  min-height: 2.2em;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.cursor {
  display: inline-block;
  color: var(--accent-light);
  animation: blink 0.9s step-end infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

.hero-summary {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin-bottom: 36px;
  animation: fadeInUp 0.6s ease 0.3s both;
}
.hero-summary strong { color: var(--text-primary); }

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  animation: fadeInUp 0.6s ease 0.4s both;
}

.hero-socials {
  display: flex;
  gap: 12px;
  animation: fadeInUp 0.6s ease 0.5s both;
}

.social-link {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
}
.social-link svg { width: 18px; height: 18px; }
.social-link:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: rgba(124,58,237,0.1);
  transform: translateY(-2px);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  animation: fadeIn 1s ease 1s both;
}

.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation: scroll-grow 1.5s ease-in-out infinite;
}

@keyframes scroll-grow {
  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: 1fr 340px;
  gap: 60px;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 18px;
  font-size: 1.02rem;
}
.about-text strong { color: var(--text-primary); }

.about-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.info-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}
.info-value {
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
}
.status-available {
  color: #22c55e;
  font-weight: 600;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.stat-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* =====================================================
   TIMELINE / EXPERIENCE
   ===================================================== */
.timeline { display: flex; flex-direction: column; gap: 0; }

.timeline-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 28px;
  position: relative;
}

.timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 6px;
}

.timeline-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-secondary);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.3);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  transition: var(--transition);
}

.timeline-line {
  width: 2px;
  flex: 1;
  background: linear-gradient(to bottom, var(--accent), rgba(124,58,237,0.1));
  margin-top: 6px;
  min-height: 40px;
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-bottom: 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.timeline-content::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0;
  transition: var(--transition);
}
.timeline-content:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateX(4px);
  box-shadow: var(--shadow-card);
}
.timeline-content:hover::before { opacity: 1; }

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.job-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.company-name {
  font-size: 0.9rem;
  color: var(--accent-light);
  font-weight: 500;
}

.job-date {
  font-family: var(--font-code);
  font-size: 0.78rem;
  color: var(--text-muted);
  background: rgba(124,58,237,0.1);
  border: 1px solid rgba(124,58,237,0.2);
  padding: 4px 12px;
  border-radius: 50px;
  white-space: nowrap;
  flex-shrink: 0;
}

.job-bullets {
  margin-bottom: 18px;
}
.job-bullets li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  padding: 4px 0 4px 18px;
  position: relative;
}
.job-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.85rem;
}

.job-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: 50px;
  background: rgba(6,182,212,0.08);
  border: 1px solid rgba(6,182,212,0.2);
  color: var(--accent-2);
  font-weight: 500;
}

/* =====================================================
   SKILLS
   ===================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.skill-category::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx,50%) var(--my,50%), rgba(124,58,237,0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.skill-category:hover::after { opacity: 1; }
.skill-category:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.skill-cat-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(124,58,237,0.15);
  border: 1px solid rgba(124,58,237,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.skill-cat-icon svg { width: 18px; height: 18px; color: var(--accent-light); }

.skill-cat-header h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  font-size: 0.78rem;
  padding: 5px 13px;
  border-radius: 50px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition);
}
.skill-tag:hover, .skill-tag.featured {
  background: rgba(124,58,237,0.12);
  border-color: rgba(124,58,237,0.3);
  color: var(--accent-light);
}

/* =====================================================
   PROJECTS
   ===================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  height: 100%;
}
.project-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.project-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(124,58,237,0.1);
  border: 1px solid rgba(124,58,237,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-icon svg {
  width: 24px;
  height: 24px;
  color: var(--accent-light);
}

.project-links {
  display: flex;
  gap: 12px;
}
.project-links svg {
  width: 20px;
  height: 20px;
  color: var(--text-secondary);
  transition: var(--transition);
}
.project-card:hover .project-links svg {
  color: var(--accent);
}

.project-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  transition: var(--transition);
}
.project-card:hover .project-title {
  color: var(--accent-light);
}

.project-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  flex-grow: 1;
}

.project-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--text-muted);
}
.project-tech span {
  padding: 4px 10px;
  border-radius: 50px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
}

/* =====================================================
   EDUCATION
   ===================================================== */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 24px;
}

.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.edu-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transition: var(--transition);
}
.edu-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}
.edu-card:hover::before { transform: scaleX(1); }

.edu-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(124,58,237,0.2), rgba(6,182,212,0.1));
  border: 1px solid rgba(124,58,237,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.edu-icon svg { width: 24px; height: 24px; color: var(--accent-light); }

.edu-degree {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 6px;
}
.edu-institution {
  font-size: 0.88rem;
  color: var(--accent-light);
  font-weight: 500;
  margin-bottom: 4px;
}
.edu-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-code);
  margin-bottom: 14px;
}
.edu-modules {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.edu-module-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-right: 4px;
}
.edu-module {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 50px;
  background: rgba(6,182,212,0.08);
  border: 1px solid rgba(6,182,212,0.2);
  color: var(--accent-2);
}

/* =====================================================
   CERTIFICATIONS
   ===================================================== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: var(--transition);
}
.cert-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.cert-badge {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(124,58,237,0.25), rgba(168,85,247,0.1));
  border: 2px solid rgba(124,58,237,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 20px var(--accent-glow);
}
.cert-badge svg { width: 26px; height: 26px; color: var(--accent-light); }

.cert-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.cert-issuer {
  font-size: 0.85rem;
  color: var(--accent-light);
  font-weight: 500;
}

/* =====================================================
   CONTACT
   ===================================================== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: start;
}

.contact-text p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
  cursor: pointer;
}
.contact-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateX(6px);
  box-shadow: var(--shadow-card);
}

.contact-card-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-card-icon svg { width: 20px; height: 20px; color: var(--accent-light); }

.contact-card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.contact-card-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}
.contact-card-value {
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
}

.contact-card-arrow {
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.contact-card:hover .contact-card-arrow { color: var(--accent-light); transform: translateX(4px); }

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 28px 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.back-to-top {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
}
.back-to-top svg { width: 18px; height: 18px; }
.back-to-top:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: rgba(124,58,237,0.1);
  transform: translateY(-3px);
}

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

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; gap: 32px; }
  .nav-links, .nav-resume-btn { display: none; }
  .hamburger { display: flex; }
  #navbar.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(10,10,15,0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    gap: 4px;
  }
  #navbar.menu-open .nav-resume-btn {
    display: inline-flex;
    margin: 8px 24px 0;
  }
}

@media (max-width: 640px) {
  .section { padding: 70px 0; }
  .hero-title { font-size: clamp(2.4rem, 10vw, 4rem); }
  .education-grid { grid-template-columns: 1fr; }
  .about-info-grid { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 20px 1fr; gap: 16px; }
  .timeline-content { padding: 20px; }
  .footer-content { flex-direction: column; gap: 12px; }
}