/* =============================================
   PORTFOLIO STYLE.CSS
   Premium Dark Portfolio — AI-Augmented Builder
   ============================================= */

/* ── CSS Custom Properties ── */
:root {
  --primary: #e74c3c;
  --primary-dark: #c0392b;
  --primary-glow: rgba(231, 76, 60, 0.35);
  --accent: #e67e22;
  --accent-glow: rgba(230, 126, 34, 0.25);
  --bg-base: #060b14;
  --bg-deep: #050911;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(231, 76, 60, 0.3);
  --text-primary: #f0f4ff;
  --text-secondary: rgba(240, 244, 255, 0.65);
  --text-muted: rgba(240, 244, 255, 0.4);
  --nav-h: 72px;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px var(--primary-glow);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  font-family: var(--font);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ── Container ── */
.container {
  width: min(1200px, 100% - 48px);
  margin-inline: auto;
}

/* ── Section Base ── */
.section { padding: 100px 0; position: relative; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-glow);
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid var(--border-glow);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text-primary) 0%, rgba(240, 244, 255, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-inline: auto;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  box-shadow: 0 4px 20px var(--primary-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-outline {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}
.btn-outline:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
  transform: translateY(-2px);
}

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

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(6, 11, 20, 0.9);
  backdrop-filter: blur(20px);
  border-bottom-color: var(--border);
}

.nav-container {
  display: flex;
  align-items: center;
  gap: 32px;
  height: var(--nav-h);
  width: min(1200px, 100% - 48px);
  margin-inline: auto;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.1rem;
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: 2px;
}

.logo-bracket {
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 1rem;
}

.logo-text { color: var(--text-primary); }

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

.nav-link {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.nav-link:hover { color: var(--text-primary); background: var(--bg-glass); }

.nav-cta {
  padding: 10px 22px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  color: white;
  transition: var(--transition);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 20px var(--primary-glow); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 16px 24px 24px;
  background: rgba(6, 11, 20, 0.98);
  border-top: 1px solid var(--border);
  gap: 4px;
}

.mobile-link {
  padding: 12px 16px;
  border-radius: 8px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.mobile-link:hover { color: var(--text-primary); background: var(--bg-glass); }

/* =============================================
   HERO
   ============================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-h) + 40px) 0 80px;
}

/* Animated background orbs */
.hero-bg-orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.2;
}

.orb-1 {
  width: 700px; height: 700px;
  background: radial-gradient(circle, #e74c3c 0%, transparent 70%);
  top: -200px; right: -200px;
  animation: orbFloat1 12s ease-in-out infinite;
}

.orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #e67e22 0%, transparent 70%);
  bottom: -100px; left: -100px;
  animation: orbFloat2 16s ease-in-out infinite;
}

.orb-3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #8e44ad 0%, transparent 70%);
  top: 40%; left: 40%;
  animation: orbFloat3 20s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-60px, 40px) scale(1.05); }
}
@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -60px) scale(1.08); }
}
@keyframes orbFloat3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(0.95); }
  66% { transform: translate(-40px, 20px) scale(1.05); }
}

/* Grid overlay */
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 80%);
}

/* Hero Layout */
.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto;
  align-items: center;
  padding-inline: calc((100% - min(1200px, 100% - 48px)) / 2);
  gap: 60px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 660px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-glass);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}

.badge-dot {
  width: 8px; height: 8px;
  background: #2ecc71;
  border-radius: 50%;
  box-shadow: 0 0 8px #2ecc71;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.title-line {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 500;
  color: var(--text-secondary);
}

.title-name {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  background: linear-gradient(135deg, #fff 30%, rgba(255,255,255,0.7));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.title-tagline {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  font-weight: 600;
  color: var(--primary);
  min-height: 2em;
  display: flex;
  align-items: center;
  gap: 2px;
}

.cursor {
  animation: blink 1s step-end 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: 1.75;
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-desc strong { color: var(--text-primary); }
.hero-desc em { color: var(--primary); font-style: normal; }

/* Hero Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 36px;
}

.stat-item { text-align: center; }

.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 4px;
  white-space: nowrap;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.hero-card {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 280px;
  box-shadow: var(--shadow);
}

.floating {
  animation: floatCard 5s ease-in-out infinite;
}
@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hcard-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.hcard-dots {
  display: flex;
  gap: 5px;
}
.hcard-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--border);
}
.hcard-dots span:nth-child(1) { background: #e74c3c; }
.hcard-dots span:nth-child(2) { background: #f39c12; }
.hcard-dots span:nth-child(3) { background: #2ecc71; }

.hcard-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.hcard-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 80px;
  margin-bottom: 20px;
}

.chart-bar {
  flex: 1;
  background: var(--border);
  border-radius: 4px 4px 0 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 6px;
  transition: var(--transition);
}

.chart-bar.active {
  background: linear-gradient(180deg, var(--primary), var(--accent));
  box-shadow: 0 0 20px var(--primary-glow);
}

.chart-bar span {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.hcard-stats {
  display: flex;
  gap: 16px;
}

.hstat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hstat-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
}

.hstat span:not(.hstat-val) {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Hero Tech Tags */
.hero-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  max-width: 300px;
}

.tech-tag {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-glass);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 100px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.tech-tag:hover { border-color: var(--primary); color: var(--primary); }

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
}

.scroll-indicator span {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.scroll-arrow {
  width: 24px; height: 24px;
  border-right: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  transform: rotate(45deg);
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); opacity: 1; }
  50% { transform: rotate(45deg) translateY(6px); opacity: 0.5; }
}

/* =============================================
   ABOUT SECTION
   ============================================= */
.about-section { background: linear-gradient(180deg, var(--bg-base) 0%, var(--bg-deep) 100%); }

.about-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 64px;
  align-items: start;
}

.about-photo-wrap {
  position: relative;
  width: 290px;
  flex-shrink: 0;
}

.photo-frame {
  position: relative;
  width: 290px;
  height: 380px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 2px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(231, 76, 60, 0.15);
  transition: var(--transition);
}

.photo-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(145deg, var(--primary), transparent 60%, var(--accent));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
}

.photo-frame:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.7), 0 0 45px var(--primary-glow);
}

.photo-frame:hover .profile-img {
  transform: scale(1.05);
}

.photo-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 65%, rgba(6, 11, 20, 0.85) 100%);
  pointer-events: none;
}

.about-photo-badge {
  position: absolute;
  bottom: -16px;
  right: -16px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 100px;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.about-name {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 4px;
  background: linear-gradient(135deg, #fff, rgba(255,255,255,0.8));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-role {
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 24px;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.about-text p {
  color: var(--text-secondary);
  line-height: 1.75;
}

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

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.highlight-item:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.highlight-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-glow);
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  color: var(--primary);
  flex-shrink: 0;
}

.highlight-item strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.highlight-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* =============================================
   SKILLS SECTION
   ============================================= */
.skills-section {
  position: relative;
  background: var(--bg-deep);
}

.skills-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.skill-category::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

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

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

.skill-cat-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-glow);
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  color: var(--primary);
  margin-bottom: 12px;
  flex-shrink: 0;
}

.skill-category h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

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

.skill-tag {
  font-size: 0.78rem;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: var(--transition);
}

.skill-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.skill-tag.primary {
  background: var(--primary-glow);
  border-color: var(--border-glow);
  color: var(--primary);
  font-weight: 600;
}

/* =============================================
   PROJECTS SECTION
   ============================================= */
.projects-section { background: var(--bg-base); }

.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--primary);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 16px var(--primary-glow);
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.project-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-glow) 0%, transparent 50%);
  opacity: 0;
  transition: var(--transition);
  border-radius: var(--radius);
  pointer-events: none;
}

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

.project-card:hover::after { opacity: 1; }

/* Project Header */
.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.project-icon-wrap {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

.project-badges {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* Badges */
.badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
}

.badge-live { background: rgba(46, 204, 113, 0.15); color: #2ecc71; border: 1px solid rgba(46,204,113,0.3); }
.badge-pwa { background: rgba(52, 152, 219, 0.15); color: #3498db; border: 1px solid rgba(52,152,219,0.3); }
.badge-android { background: rgba(155, 89, 182, 0.15); color: #9b59b6; border: 1px solid rgba(155,89,182,0.3); }
.badge-iot { background: rgba(230, 126, 34, 0.15); color: #e67e22; border: 1px solid rgba(230,126,34,0.3); }
.badge-ai { background: rgba(231, 76, 60, 0.15); color: #e74c3c; border: 1px solid rgba(231,76,60,0.3); }
.badge-offline { background: rgba(149, 165, 166, 0.15); color: #95a5a6; border: 1px solid rgba(149,165,166,0.3); }
.badge-wp { background: rgba(33, 117, 155, 0.15); color: #21759b; border: 1px solid rgba(33,117,155,0.3); }

.project-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
}

.project-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
}

/* Tech stack pills */
.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tech span {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 4px;
  font-family: var(--font-mono);
}

/* Project Features */
.project-features {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.feature-dot {
  width: 5px; height: 5px;
  background: var(--primary);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Project Mockup Visual Header */
.project-mockup {
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 4px;
}

.mockup-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mockup-dots {
  display: flex;
  gap: 4px;
}

.mockup-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}

.mockup-dots span:nth-child(1) { background: #e74c3c; }
.mockup-dots span:nth-child(2) { background: #f39c12; }
.mockup-dots span:nth-child(3) { background: #2ecc71; }

.mockup-url {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.mockup-content {
  padding: 14px 16px;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: radial-gradient(circle at 80% 50%, rgba(231, 76, 60, 0.06), transparent 70%);
}

.mock-stat-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.mock-badge-pill {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.mock-badge-pill.highlight {
  background: var(--primary-glow);
  color: var(--primary);
  border-color: var(--border-glow);
}

.mock-graph-lines {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 60px;
}

.mock-graph-lines span {
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
}

.mock-bars-visual {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 24px;
  width: 40px;
}

.mbar {
  flex: 1;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px 2px 0 0;
}

.mbar.active {
  background: linear-gradient(180deg, var(--primary), var(--accent));
}

.mock-geo-ring {
  width: 22px;
  height: 22px;
  border: 2px solid var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse 2s infinite;
}

.mock-geo-dot {
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

.mock-grid-icons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
}

.mock-grid-icons span {
  width: 8px;
  height: 8px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
}

.mock-receipt-paper {
  width: 32px;
  height: 24px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.mock-receipt-paper span {
  display: block;
  height: 2px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 1px;
}

/* Project Business Impact Box */
.project-impact-box {
  margin-top: auto;
  padding: 12px 14px;
  background: rgba(46, 204, 113, 0.06);
  border: 1px solid rgba(46, 204, 113, 0.2);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.impact-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #2ecc71;
}

.impact-value {
  font-size: 0.8rem;
  color: var(--text-primary);
  line-height: 1.5;
}

/* =============================================
   ECOSYSTEM SECTION
   ============================================= */
.ecosystem-section {
  background: var(--bg-deep);
  position: relative;
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.eco-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
}

.eco-card:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

.eco-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-glow);
  border: 1px solid var(--border-glow);
  border-radius: 14px;
  color: var(--primary);
  margin: 0 auto 12px;
}

.eco-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.eco-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* =============================================
   CONTACT SECTION
   ============================================= */
.contact-section { background: var(--bg-base); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.contact-intro {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 32px;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
}

.contact-link {
  text-decoration: none;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin: -8px -12px;
}

.contact-link:hover {
  background: var(--bg-card-hover);
  transform: translateX(6px);
}

.contact-link:hover .contact-value {
  color: var(--primary);
}

.contact-item-icon {
  width: 44px; height: 44px;
  background: var(--primary-glow);
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2px;
}

.contact-value {
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
}

.contact-availability {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: rgba(46, 204, 113, 0.08);
  border: 1px solid rgba(46, 204, 113, 0.2);
  padding: 12px 16px;
  border-radius: 10px;
}

.avail-dot {
  width: 10px; height: 10px;
  background: #2ecc71;
  border-radius: 50%;
  box-shadow: 0 0 8px #2ecc71;
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

.contact-availability strong { color: #2ecc71; }

/* Contact Form */
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: var(--transition);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(231, 76, 60, 0.05);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

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

.form-message {
  text-align: center;
  padding: 12px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
}

.form-message.success {
  background: rgba(46, 204, 113, 0.1);
  border: 1px solid rgba(46, 204, 113, 0.3);
  color: #2ecc71;
}

.form-message.error {
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid rgba(231, 76, 60, 0.3);
  color: var(--primary);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 40px 0 24px;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.footer-brand .logo-bracket { color: var(--primary); font-family: var(--font-mono); }
.footer-brand .logo-text { font-weight: 700; }

.footer-brand p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.footer-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--text-primary);
  background: var(--bg-glass);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.ai-credit { color: var(--primary); font-weight: 600; }

/* =============================================
   HIDDEN / FILTERED PROJECTS
   ============================================= */
.project-card.hidden {
  display: none;
}

/* =============================================
   REVEAL ANIMATIONS
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* =============================================
   RESPONSIVE & MOBILE-FIRST OPTIMIZATION
   ============================================= */

@media (max-width: 1024px) {
  .hero {
    gap: 40px;
  }
  .contact-grid {
    grid-template-columns: 1fr 1.1fr;
    gap: 32px;
  }
}

@media (max-width: 900px) {
  :root {
    --nav-h: 64px;
  }

  .container {
    width: min(1200px, 100% - 36px);
  }

  .section {
    padding: 70px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  /* Hero Section Mobile */
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: calc(var(--nav-h) + 24px);
    padding-bottom: 50px;
    padding-inline: calc((100% - min(1200px, 100% - 36px)) / 2);
    gap: 36px;
  }

  .hero-content {
    max-width: 100%;
    margin: 0 auto;
  }

  .hero-badge,
  .hero-actions,
  .hero-stats {
    justify-content: center;
  }

  .title-tagline {
    justify-content: center;
  }

  .hero-desc {
    margin-inline: auto;
    font-size: 0.95rem;
    line-height: 1.65;
  }

  .hero-visual {
    order: -1;
    width: 100%;
    display: flex;
    justify-content: center;
  }

  .hero-card {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }

  .hero-tech-tags {
    justify-content: center;
    max-width: 360px;
    margin: 0 auto;
  }

  .scroll-indicator { display: none; }

  /* About Grid */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    text-align: left;
  }

  .about-photo-wrap {
    width: 100%;
    display: flex;
    justify-content: center;
  }

  .photo-frame {
    width: 100%;
    max-width: 280px;
    height: 350px;
  }

  /* Contact Grid */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  /* Navigation Mobile */
  .nav-container {
    width: min(1200px, 100% - 36px);
  }

  .nav-links, .nav-cta { display: none; }
  .hamburger { 
    display: flex;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
  }

  .mobile-menu {
    border-bottom: 1px solid var(--border);
    box-shadow: 0 16px 32px rgba(0,0,0,0.6);
  }

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

@media (max-width: 768px) {
  /* Horizontal swipeable filter bar for mobile */
  .filter-bar {
    display: flex;
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding: 6px 18px 14px;
    margin: 0 -18px 28px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .filter-bar::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    flex-shrink: 0;
    padding: 8px 18px;
    font-size: 0.8rem;
    white-space: nowrap;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .project-card {
    padding: 20px 18px;
    gap: 14px;
  }

  .skills-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .skill-category {
    padding: 22px 18px;
  }

  .ecosystem-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .eco-card {
    padding: 18px 14px;
  }

  .eco-icon {
    width: 44px;
    height: 44px;
    margin-bottom: 10px;
  }

  .eco-card h4 {
    font-size: 0.88rem;
  }

  .eco-card p {
    font-size: 0.76rem;
  }
}

@media (max-width: 540px) {
  .container {
    width: min(1200px, 100% - 28px);
  }

  .nav-container {
    width: min(1200px, 100% - 28px);
  }

  .hero-title .title-name {
    font-size: 2.2rem;
  }

  .hero-title .title-tagline {
    font-size: 1.05rem;
  }

  .hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 16px 12px;
    border-radius: var(--radius);
  }

  .stat-divider { display: none; }

  .stat-num {
    font-size: 1.5rem;
  }

  .stat-label {
    font-size: 0.68rem;
    white-space: normal;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 13px 20px;
  }

  .about-highlights {
    gap: 12px;
  }

  .highlight-item {
    padding: 12px 14px;
    gap: 12px;
  }

  .highlight-icon {
    width: 38px;
    height: 38px;
  }

  .highlight-item strong {
    font-size: 0.88rem;
  }

  .highlight-item p {
    font-size: 0.78rem;
  }

  .project-mockup {
    margin-bottom: 0;
  }

  .mockup-content {
    padding: 10px 12px;
  }

  .project-title {
    font-size: 0.98rem;
  }

  .project-desc {
    font-size: 0.82rem;
  }

  .contact-form-wrap {
    padding: 20px 16px;
    border-radius: var(--radius);
  }

  .contact-items {
    gap: 12px;
  }

  .contact-link {
    margin: 0;
    padding: 10px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
  }

  .footer {
    padding: 32px 0 20px;
  }

  .footer-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 20px;
  }

  .footer-links {
    justify-content: center;
    gap: 4px;
  }

  .footer-links a {
    font-size: 0.8rem;
    padding: 6px 10px;
  }
}

@media (max-width: 380px) {
  .ecosystem-grid {
    grid-template-columns: 1fr;
  }

  .hero-title .title-name {
    font-size: 1.9rem;
  }

  .photo-frame {
    height: 300px;
  }
}