/* ==========================================
   MUHAMAD FARHANUDIN — PORTFOLIO STYLESHEET
   Dark Tech Aesthetic | Space Mono + Syne
========================================== */

/* ===== CSS VARIABLES ===== */
:root {
  --bg:        #080c14;
  --bg-2:      #0d1220;
  --bg-card:   #111827;
  --bg-glass:  rgba(17, 24, 39, 0.6);
  --accent:    #00f5a0;
  --accent-2:  #00d9f5;
  --accent-dim: rgba(0, 245, 160, 0.12);
  --text:      #e2e8f0;
  --text-muted: #64748b;
  --text-dim:  #94a3b8;
  --border:    rgba(255,255,255,0.07);
  --border-accent: rgba(0, 245, 160, 0.3);
  --shadow:    0 20px 60px rgba(0,0,0,0.5);
  --radius:    14px;
  --radius-lg: 24px;
  --nav-h:     70px;
  --font-head: 'Syne', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --font-body: 'DM Sans', sans-serif;
  --transition: 0.35s 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 {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
  cursor: none;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }

/* ===== CANVAS ===== */
#particles-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ===== CUSTOM CURSOR ===== */
.cursor-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  z-index: 9999;
  pointer-events: none;
  transition: transform 0.1s;
}
.cursor-outline {
  width: 32px; height: 32px;
  border: 1.5px solid rgba(0,245,160,0.5);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  z-index: 9998;
  pointer-events: none;
  transition: transform 0.15s, width 0.2s, height 0.2s, border-color 0.2s;
  transform: translate(-50%, -50%);
}
body:has(a:hover) .cursor-outline,
body:has(button:hover) .cursor-outline {
  width: 48px; height: 48px;
  border-color: var(--accent);
}

/* ===== NAVIGATION ===== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  transition: background var(--transition), backdrop-filter var(--transition);
}
#navbar.scrolled {
  background: rgba(8,12,20,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.nav-logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
  mix-blend-mode: lighten;
  transition: opacity var(--transition), transform var(--transition);
}
.nav-logo:hover .nav-logo-img {
  opacity: 0.85;
  transform: scale(1.04);
}
.logo-bracket { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  position: relative;
  transition: color var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--accent); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-cv-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition);
}
.nav-cv-btn:hover {
  background: var(--accent);
  color: var(--bg);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  transition: all var(--transition);
}

/* ===== SECTION BASE ===== */
section {
  position: relative;
  z-index: 1;
  padding: 7rem 8% 5rem;
  max-width: 1300px;
  margin: 0 auto;
}

.section-header {
  margin-bottom: 4rem;
}
.section-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 0.75rem;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2rem;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: 8px;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(0, 245, 160, 0.35);
}
.btn-full { width: 100%; justify-content: center; }

/* ===== REVEAL ANIMATIONS ===== */
.reveal-up, .reveal-left, .reveal-right {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease calc(var(--delay, 0s)), transform 0.7s ease calc(var(--delay, 0s));
}
.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }

.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
  opacity: 1;
  transform: none;
}

/* ==================== HERO ==================== */
#hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  padding-top: calc(var(--nav-h) + 2rem);
  max-width: 1300px;
  margin: 0 auto;
  padding-left: 8%;
  padding-right: 8%;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}
.tag-dot {
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-name {
  font-family: var(--font-head);
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 1.2rem;
  color: var(--text);
}
.name-accent {
  color: transparent;
  -webkit-text-stroke: 2px var(--accent);
  display: block;
}

.hero-role {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
}
.role-prefix { color: var(--text-muted); }
.typed-text { color: var(--accent-2); }
.typed-cursor {
  color: var(--accent);
  animation: blink 0.8s infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-bio {
  color: var(--text-dim);
  line-height: 1.8;
  max-width: 500px;
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}

.hero-cta { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }

.hero-socials {
  display: flex;
  gap: 1rem;
}
.hero-socials a {
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all var(--transition);
}
.hero-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  background: var(--accent-dim);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-card {
  position: relative;
  width: 320px;
  height: 380px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-accent);
}
.profile-glow {
  position: absolute;
  inset: -50%;
  background: radial-gradient(circle, rgba(0,245,160,0.15) 0%, transparent 70%);
  animation: rotateGlow 6s linear infinite;
}
@keyframes rotateGlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.profile-img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
  transition: filter var(--transition);
}
.profile-card:hover .profile-img { filter: saturate(1.1); }

.profile-badge {
  position: absolute;
  bottom: 16px; left: 50%;
  transform: translateX(-50%);
  background: rgba(8,12,20,0.85);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  padding: 0.4rem 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.hero-stat-card {
  position: absolute;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  box-shadow: var(--shadow);
}
.card-1 { top: 20px; left: -60px; }
.card-2 { bottom: 40px; right: -50px; }

.stat-num {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.stat-num span { font-size: 0.9rem; }
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 8%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  animation: floatY 2s ease-in-out infinite;
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.scroll-mouse {
  width: 22px; height: 36px;
  border: 1.5px solid var(--text-muted);
  border-radius: 100px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.scroll-wheel {
  width: 3px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollWheel 1.5s infinite;
}
@keyframes scrollWheel {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(10px); }
}

/* ==================== ABOUT ==================== */
#about { background: linear-gradient(180deg, transparent, var(--bg-2) 30%, var(--bg-2) 70%, transparent); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 5rem;
  align-items: center;
}

.about-img-wrap {
  position: relative;
}
.about-img {
  border-radius: var(--radius-lg);
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  position: relative;
  z-index: 1;
}
.about-img-border {
  position: absolute;
  top: 16px; left: 16px;
  right: -16px; bottom: -16px;
  border: 2px solid var(--border-accent);
  border-radius: var(--radius-lg);
  z-index: 0;
}
.about-img-dots {
  position: absolute;
  bottom: -30px; right: -30px;
  width: 100px; height: 100px;
  background-image: radial-gradient(circle, rgba(0,245,160,0.3) 1px, transparent 1px);
  background-size: 12px 12px;
  z-index: 0;
}

.about-text {
  color: var(--text-dim);
  line-height: 1.85;
  margin-bottom: 1.2rem;
  font-size: 1.05rem;
}
.about-text strong { color: var(--accent); font-weight: 600; }

.about-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}
.info-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}
.info-item:hover { border-color: var(--border-accent); }
.info-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.info-label i { color: var(--accent); }
.info-value {
  font-size: 0.9rem;
  color: var(--text);
  font-weight: 500;
  word-break: break-word;
}

/* ==================== SKILLS ==================== */
#skills { max-width: 1300px; margin: 0 auto; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.2rem;
  margin-bottom: 2.5rem;
}

.skill-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.skill-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.3);
}

.skill-icon {
  font-size: 2rem;
  width: 52px; height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 12px;
  flex-shrink: 0;
}
.fa-html5 { color: #e44d26; }
.fa-css3-alt { color: #264de4; }
.fa-js-square { color: #f7df1e; }
.fa-php { color: #8892be; }
.fa-python { color: #3572A5; }
.skill-icon-text {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.5rem;
  color: #ff2d20;
}

.skill-info { flex: 1; }
.skill-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.7rem;
}
.skill-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
}
.skill-percent {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
}
.skill-bar-bg {
  height: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 4px;
  overflow: hidden;
}
.skill-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 4px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}
.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.4rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  transition: all var(--transition);
  cursor: default;
}
.tech-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* ==================== RESUME ==================== */
#resume { background: linear-gradient(180deg, transparent, var(--bg-2) 30%, var(--bg-2) 70%, transparent); }

/* Wrapper: dua kolom berdampingan */
.resume-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}

.resume-col-title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2.2rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.resume-col-title i { color: var(--accent); }

/* ── SIMPLE TIMELINE (Pendidikan, kiri) ── */
.simple-timeline {
  position: relative;
  padding-left: 1.8rem;
}
.simple-timeline::before {
  content: '';
  position: absolute;
  left: 6px; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--border) 10%, var(--border) 90%, transparent);
}
.st-item {
  position: relative;
  margin-bottom: 1.6rem;
}
.st-item:last-child { margin-bottom: 0; }
.st-dot {
  position: absolute;
  left: -1.75rem; top: 1rem;
  width: 13px; height: 13px;
  border-radius: 50%;
  border: 2px solid var(--text-muted);
  background: var(--bg);
  z-index: 1;
  transition: border-color var(--transition);
}
.st-item:hover .st-dot { border-color: var(--accent); }

/* ── EXP GRID — snake 2-col with connector lines ── */
.exp-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 3rem;
}

/* Vertical spine di tengah gap */
.exp-grid::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 1rem;
  bottom: 1rem;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--border) 5%, var(--border) 95%, transparent);
  z-index: 0;
}

.exp-item {
  position: relative;
  z-index: 1;
}

/* Dot selalu di sisi dekat garis tengah */
.exp-dot {
  position: absolute;
  top: 1rem;
  width: 12px; height: 12px;
  border-radius: 50%;
  border: 2px solid var(--text-muted);
  background: var(--bg);
  z-index: 3;
  transition: all var(--transition);
}
/* Kolom kiri (ganjil) → dot di kanan */
.exp-item:nth-child(odd):not(.exp-item-full) .exp-dot {
  right: -1.7rem;
}
/* Kolom kanan (genap) → dot di kiri */
.exp-item:nth-child(even) .exp-dot {
  left: -1.7rem;
}
/* Connector horizontal ke dot */
.exp-item:nth-child(odd):not(.exp-item-full)::after,
.exp-item:nth-child(even)::after {
  content: '';
  position: absolute;
  top: calc(1rem + 3px);
  height: 1px;
  width: 1.45rem;
  background: var(--border);
  z-index: 2;
  transition: background var(--transition);
}
.exp-item:nth-child(odd):not(.exp-item-full)::after { right: -1.45rem; }
.exp-item:nth-child(even)::after                    { left:  -1.45rem; }
.exp-item:hover::after { background: var(--border-accent); }

/* Dot accent */
.exp-dot-accent {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 10px rgba(0,245,160,0.5);
}
.exp-item:hover .exp-dot { border-color: var(--accent); }

/* Item terakhir ganjil → span 2 kolom, centered, dot di atas-tengah */
.exp-item-full {
  grid-column: 1 / -1;
  max-width: 58%;
  margin: 0 auto;
  padding-top: 0.8rem;
}
.exp-item-full .exp-dot {
  left: 50%;
  transform: translateX(-50%);
  top: -0.2rem;
  right: auto;
}
.exp-item-full::before {
  content: '';
  position: absolute;
  top: -0.8rem;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 1rem;
  background: var(--border);
  z-index: 2;
}
.exp-item-full::after { display: none !important; }

/* shared card styles */
.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem;
  transition: all var(--transition);
}
.timeline-card:hover {
  border-color: var(--border-accent);
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
}
.timeline-card-accent {
  border-color: var(--border-accent);
  background: linear-gradient(135deg, var(--bg-card), rgba(0,245,160,0.04));
}
.timeline-period {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 0.4rem;
}
.timeline-card h4 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 0.2rem;
}
.timeline-org {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.7rem;
}
.timeline-card ul li {
  font-size: 0.83rem;
  color: var(--text-dim);
  padding: 0.18rem 0 0.18rem 1rem;
  position: relative;
  line-height: 1.5;
}
.timeline-card ul li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
}
.timeline-link {
  color: var(--accent-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  transition: opacity var(--transition);
}
.timeline-link:hover { opacity: 0.7; }

.timeline-badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  padding: 0.12rem 0.65rem;
  margin-bottom: 0.45rem;
}

/* Tab & old vertical timeline — hide */
.timeline-tabs, .tab-content, .vtimeline,
.timeline-grid, .timeline-col,
.timeline-item, .timeline-dot,
.timeline-dot-accent { all: unset; display: none; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .resume-wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .exp-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .exp-grid::before { left: 7px; transform: none; }
  .exp-item { padding-left: 2rem; }
  .exp-item:nth-child(odd):not(.exp-item-full) .exp-dot,
  .exp-item:nth-child(even) .exp-dot { left: 0; right: auto; top: 1rem; }
  .exp-item:nth-child(odd):not(.exp-item-full)::after,
  .exp-item:nth-child(even)::after { display: none; }
  .exp-item-full { grid-column: 1; max-width: 100%; padding-left: 2rem; }
  .exp-item-full .exp-dot { left: 0; top: 1rem; transform: none; }
  .exp-item-full::before { display: none; }
}

/* ==================== CERTIFICATES ==================== */
#certificates { max-width: 1300px; margin: 0 auto; }

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

.cert-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all var(--transition);
  cursor: pointer;
}
.cert-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}

.cert-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.cert-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.5s ease;
  filter: saturate(0.8);
}
.cert-card:hover .cert-img-wrap img {
  transform: scale(1.05);
  filter: saturate(1);
}
.cert-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,245,160,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  font-size: 1.5rem;
  color: var(--accent);
}
.cert-card:hover .cert-overlay { opacity: 1; }

.cert-title {
  padding: 0.9rem 1rem;
  font-size: 0.82rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  line-height: 1.4;
  border-top: 1px solid var(--border);
}

/* ==================== CONTACT ==================== */
#contact { background: linear-gradient(180deg, transparent, var(--bg-2) 30%, var(--bg-2) 70%, transparent); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: start;
}

.contact-intro {
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 2rem;
  font-size: 1rem;
}
.contact-items { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 2rem; }

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.contact-item:hover { border-color: var(--border-accent); }

.contact-icon {
  width: 44px; height: 44px;
  background: var(--accent-dim);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 0.2rem;
}
.contact-value {
  font-size: 0.9rem;
  color: var(--text);
  display: block;
}

.contact-socials {
  display: flex;
  gap: 1rem;
}
.contact-socials a {
  width: 44px; height: 44px;
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: all var(--transition);
}
.contact-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-3px);
}

/* Contact Form */
.contact-form { display: flex; flex-direction: column; gap: 1.2rem; }
.form-group { position: relative; }
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1.1rem 1.2rem 0.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition);
  resize: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,245,160,0.08);
}
.form-group label {
  position: absolute;
  top: 50%;
  left: 1.2rem;
  transform: translateY(-50%);
  font-size: 0.88rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: all 0.2s;
}
.form-group textarea ~ label { top: 1.2rem; transform: none; }
.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
  top: 0.5rem;
  font-size: 0.65rem;
  color: var(--accent);
  transform: translateY(0);
  letter-spacing: 0.06em;
}

/* ==================== FOOTER ==================== */
#footer {
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}
.footer-inner {
  max-width: 1300px;
  margin: 0 auto;
  padding: 2rem 8%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
}
.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
}
.heart { color: #ef4444; }
.back-top {
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all var(--transition);
}
.back-top:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* ==================== LIGHTBOX ==================== */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.lightbox.active {
  opacity: 1;
  pointer-events: all;
}
.lightbox-inner {
  max-width: 90vw;
  max-height: 85vh;
  position: relative;
  text-align: center;
}
.lightbox-inner img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--radius);
  object-fit: contain;
}
.lightbox-caption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 1rem;
}
.lightbox-close, .lightbox-prev, .lightbox-next {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 1rem;
}
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.lightbox-close { top: -54px; right: 0; }
.lightbox-prev { left: -54px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: -54px; top: 50%; transform: translateY(-50%); }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
  #hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: calc(var(--nav-h) + 3rem);
  }
  .hero-visual { order: -1; }
  .hero-cta { justify-content: center; }
  .hero-bio { margin: 0 auto 2.5rem; }
  .scroll-indicator { left: 50%; transform: translateX(-50%); }

  .about-grid { grid-template-columns: 1fr; }
  .about-img-wrap { max-width: 300px; margin: 0 auto; }

  .timeline-grid { grid-template-columns: 1fr; gap: 2rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .card-1 { top: -20px; left: -20px; }
  .card-2 { bottom: -10px; right: -20px; }

  .lightbox-prev { left: 10px; bottom: -54px; top: auto; transform: none; }
  .lightbox-next { right: 10px; bottom: -54px; top: auto; transform: none; }
}

@media (max-width: 768px) {
  section { padding: 5rem 5% 3rem; }

  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 70%;
    height: 100vh;
    background: var(--bg-2);
    border-left: 1px solid var(--border);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem;
    gap: 1.5rem;
    transition: right var(--transition);
  }
  .nav-links.open { right: 0; }
  .nav-toggle { display: flex; z-index: 200; }
  .nav-link { font-size: 1rem; }

  .skills-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .about-info-grid { grid-template-columns: 1fr; }

  .profile-card { width: 250px; height: 300px; }
  .cursor-dot, .cursor-outline { display: none; }
  body { cursor: auto; }
}

@media (max-width: 480px) {
  .footer-inner { flex-direction: column; text-align: center; }
  .hero-stat-card { display: none; }
}