@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

/* ─── CSS Variables ─── */
:root {
  --bg: #f9fafb;
  --fg: #111827;
  --card: #ffffff;
  --card-2: #f3f4f6;
  --primary: #2563eb;
  --primary-glow: rgba(37,99,235,0.15);
  --border: #e5e7eb;
  --muted: #6b7280;
  --radius: 20px;
  --nav-bg: rgba(255,255,255,0.7);
}
[data-theme="dark"] {
  --bg: #0f172a;
  --fg: #f1f5f9;
  --card: #1e293b;
  --card-2: #162032;
  --primary: #3b82f6;
  --primary-glow: rgba(59,130,246,0.15);
  --border: #334155;
  --muted: #94a3b8;
  --nav-bg: rgba(15,23,42,0.8);
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--fg);
  transition: background .3s, color .3s;
  overflow-x: hidden;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ─── Utilities ─── */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.text-primary { color: var(--primary); }
.text-muted { color: var(--muted); }
.section { padding: 96px 0; }
.section-alt { background: var(--card-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.label {
  font-size: 11px; font-weight: 900; letter-spacing: .4em;
  text-transform: uppercase; color: var(--primary); display: block; margin-bottom: 12px;
}
.section-title { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 900; line-height: 1.1; }
.section-header { text-align: center; margin-bottom: 64px; }

/* ─── Navbar ─── */
.navbar {
  position: sticky; top: 0; z-index: 100;
  height: 72px;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background .3s;
}
.navbar .container { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-size: 1.1rem; font-weight: 900; letter-spacing: -.02em; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: .85rem; font-weight: 600; color: var(--muted); transition: color .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-right { display: flex; align-items: center; gap: 16px; }
.theme-btn {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--card); border: 1px solid var(--border);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all .2s; color: var(--fg);
}
.theme-btn:hover { border-color: var(--primary); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { width: 22px; height: 2px; background: var(--fg); border-radius: 2px; transition: all .3s; }
.mobile-nav {
  display: none; position: fixed; inset: 72px 0 0 0;
  background: var(--bg); z-index: 99; flex-direction: column;
  align-items: center; justify-content: center; gap: 32px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a { font-size: 1.5rem; font-weight: 800; color: var(--muted); transition: color .2s; }
.mobile-nav a:hover, .mobile-nav a.active { color: var(--primary); }

/* ─── Hero ─── */
.hero {
  position: relative; text-align: center;
  padding: 120px 0 96px; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: var(--bg);
}
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .25; }
.hero-bg-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 0%, var(--bg) 100%);
}
.hero-glow {
  position: absolute; top: 0; left: 25%; width: 400px; height: 400px;
  background: var(--primary-glow); border-radius: 50%; filter: blur(120px); pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 100px;
  background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.2);
  font-size: 11px; font-weight: 900; letter-spacing: .15em; text-transform: uppercase;
  color: #16a34a; margin-bottom: 32px;
}
[data-theme="dark"] .hero-badge { color: #4ade80; }
.hero-badge-dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.6;transform:scale(1.2)} }
.hero-title { font-size: clamp(3rem,10vw,7rem); font-weight: 900; line-height: .95; letter-spacing: -.04em; margin-bottom: 20px; }
.hero-subtitle { font-size: clamp(1.1rem,3vw,1.6rem); font-weight: 700; margin-bottom: 16px; }
.hero-desc { max-width: 680px; margin: 0 auto 48px; color: var(--muted); font-size: 1.05rem; line-height: 1.7; }
.hero-ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-bottom: 56px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: var(--primary); color: #fff;
  font-weight: 700; border-radius: 16px; font-size: .95rem;
  box-shadow: 0 20px 40px var(--primary-glow);
  transition: transform .2s, box-shadow .2s;
}
.btn-primary:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 28px 50px var(--primary-glow); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: var(--card);
  border: 1px solid var(--border); color: var(--fg);
  font-weight: 700; border-radius: 16px; font-size: .95rem;
  transition: all .2s;
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }
.hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.hero-tag {
  padding: 6px 16px; background: var(--card); border: 1px solid var(--border);
  border-radius: 100px; font-size: 11px; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
  transition: all .2s; cursor: default;
}
.hero-tag:hover { border-color: var(--primary); color: var(--primary); }

/* ─── Stats ─── */
.stats { padding: 40px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--card-2); }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 32px; text-align: center; }
.stat-value { font-size: clamp(2rem,4vw,3rem); font-weight: 900; color: var(--primary); display: block; }
.stat-label { font-size: 11px; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; color: var(--muted); }

/* ─── Project Cards ─── */
.projects-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; }
.project-card { display: block; }
.project-card-img {
  aspect-ratio: 16/10; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); margin-bottom: 20px; position: relative;
  transition: border-color .3s, box-shadow .3s;
}
.project-card:hover .project-card-img { border-color: var(--primary); box-shadow: 0 20px 60px var(--primary-glow); }
.project-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s; }
.project-card:hover .project-card-img img { transform: scale(1.05); }
.project-card-img .img-dark { display: block; }
.project-card-img .img-light { display: none; }
[data-theme="light"] .project-card-img .img-dark { display: none; }
[data-theme="light"] .project-card-img .img-light { display: block; }
.project-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.6), transparent);
  opacity: 0; transition: opacity .4s;
}
.project-card:hover .project-card-overlay { opacity: 1; }
.project-card-tags {
  position: absolute; bottom: 16px; left: 16px; right: 16px;
  display: flex; gap: 8px; flex-wrap: wrap;
  transform: translateY(8px); opacity: 0; transition: all .3s;
}
.project-card:hover .project-card-tags { transform: translateY(0); opacity: 1; }
.project-card-tag {
  padding: 4px 12px; background: rgba(0,0,0,.6); backdrop-filter: blur(8px);
  color: #fff; font-size: 10px; font-weight: 700; border-radius: 100px;
  text-transform: uppercase; letter-spacing: .1em; border: 1px solid rgba(255,255,255,.1);
}
.project-card-title { font-size: 1.2rem; font-weight: 800; margin-bottom: 8px; transition: color .2s; }
.project-card:hover .project-card-title { color: var(--primary); }
.project-card-desc { font-size: .875rem; color: var(--muted); line-height: 1.6; }

/* ─── Expertise Cards ─── */
.expertise-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.expertise-card {
  padding: 32px; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); transition: all .3s;
}
.expertise-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: 0 20px 40px var(--primary-glow); }
.expertise-icon {
  width: 52px; height: 52px; background: var(--primary-glow); color: var(--primary);
  border-radius: 14px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 1.4rem; transition: all .3s;
}
.expertise-card:hover .expertise-icon { background: var(--primary); color: #fff; }
.expertise-title { font-size: 1.05rem; font-weight: 800; margin-bottom: 10px; transition: color .2s; }
.expertise-card:hover .expertise-title { color: var(--primary); }
.expertise-desc { font-size: .875rem; color: var(--muted); line-height: 1.65; margin-bottom: 16px; }
.expertise-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.expertise-tag {
  padding: 4px 10px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; font-size: 11px; font-weight: 700; color: var(--muted);
}

/* ─── Tech Stack ─── */
.tech-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; max-width: 900px; margin: 0 auto; }
.tech-category {
  padding: 32px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
}
.tech-category-label { font-size: 11px; font-weight: 900; letter-spacing: .2em; text-transform: uppercase; margin-bottom: 20px; }
.tech-category.blue .tech-category-label { color: #3b82f6; }
.tech-category.purple .tech-category-label { color: #8b5cf6; }
.tech-category.green .tech-category-label { color: #10b981; }
.tech-items { display: flex; flex-direction: column; gap: 10px; }
.tech-item {
  display: flex; align-items: center; gap: 10px;
  font-size: .875rem; font-weight: 600; color: var(--muted);
}
.tech-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.tech-category.blue .tech-dot { background: #3b82f6; }
.tech-category.purple .tech-dot { background: #8b5cf6; }
.tech-category.green .tech-dot { background: #10b981; }

/* ─── Process Cards ─── */
.process-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; max-width: 1100px; margin: 0 auto; }
.process-card {
  position: relative; padding: 32px; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: all .3s; overflow: hidden;
}
.process-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: 0 20px 40px var(--primary-glow); }
.process-step {
  position: absolute; top: 16px; right: 20px;
  font-size: 4rem; font-weight: 900; color: var(--primary-glow);
  line-height: 1; pointer-events: none; transition: color .3s;
}
.process-card:hover .process-step { color: var(--primary-glow); filter: brightness(1.5); }
.process-icon {
  width: 48px; height: 48px; background: var(--primary-glow); color: var(--primary);
  border-radius: 14px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 1.2rem; transition: all .3s;
}
.process-card:hover .process-icon { background: var(--primary); color: #fff; }
.process-title { font-size: 1.05rem; font-weight: 800; margin-bottom: 10px; transition: color .2s; }
.process-card:hover .process-title { color: var(--primary); }
.process-desc { font-size: .85rem; color: var(--muted); line-height: 1.65; }

/* ─── Engagement Models ─── */
.engagement-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; max-width: 960px; margin: 0 auto; }
.engagement-card {
  padding: 32px; background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); transition: all .3s;
}
.engagement-card:hover { border-color: var(--primary); }
.engagement-card.popular {
  border-color: var(--primary); position: relative;
  box-shadow: 0 0 40px var(--primary-glow);
}
.popular-badge {
  position: absolute; top: 16px; right: 16px;
  background: var(--primary); color: #fff;
  font-size: 10px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase;
  padding: 4px 12px; border-radius: 100px;
}
.engagement-icon {
  width: 48px; height: 48px; background: var(--primary-glow); color: var(--primary);
  border-radius: 14px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 1.2rem;
}
.engagement-title { font-size: 1.05rem; font-weight: 800; margin-bottom: 10px; }
.engagement-desc { font-size: .875rem; color: var(--muted); line-height: 1.65; margin-bottom: 20px; }
.engagement-features { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.engagement-features li { display: flex; align-items: center; gap: 8px; font-size: .875rem; font-weight: 600; color: var(--muted); }
.check-icon { color: var(--primary); font-size: 1rem; }

/* ─── FAQ ─── */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  padding: 24px; background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; transition: border-color .2s; cursor: pointer;
}
.faq-item:hover { border-color: var(--primary); }
.faq-question { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.faq-answer { font-size: .875rem; color: var(--muted); line-height: 1.65; }

/* ─── Testimonials ─── */
.testimonials-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; max-width: 1100px; margin: 0 auto; }
.testimonial-card {
  padding: 32px; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.testimonial-stars { color: #f59e0b; font-size: 1rem; margin-bottom: 16px; }
.testimonial-quote { font-size: .9rem; color: var(--muted); line-height: 1.7; margin-bottom: 24px; font-style: italic; }
.testimonial-author { font-weight: 800; font-size: .9rem; }
.testimonial-role { font-size: .8rem; color: var(--muted); margin-top: 4px; }

/* ─── Mission Quote ─── */
.mission { padding: 96px 0; text-align: center; }
.mission-quote { font-size: clamp(1.6rem,4vw,3.5rem); font-weight: 900; line-height: 1.15; margin-bottom: 24px; }
.mission-desc { max-width: 600px; margin: 0 auto 40px; color: var(--muted); font-size: 1.05rem; }
.mission-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.mission-badge {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 24px; background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; font-size: .875rem; font-weight: 700;
}

/* ─── CTA ─── */
.cta-section { padding: 0 24px 80px; }
.cta-box {
  position: relative; background: var(--primary); border-radius: 40px;
  padding: 80px 48px; text-align: center; color: #fff;
  overflow: hidden; box-shadow: 0 40px 80px var(--primary-glow);
  max-width: 1232px; margin: 0 auto;
}
.cta-blob-1 {
  position: absolute; top: -80px; right: -80px;
  width: 300px; height: 300px; border-radius: 50%; background: rgba(255,255,255,.05);
}
.cta-blob-2 {
  position: absolute; bottom: -60px; left: -60px;
  width: 220px; height: 220px; border-radius: 50%; background: rgba(255,255,255,.05);
}
.cta-label { font-size: 11px; font-weight: 900; letter-spacing: .4em; text-transform: uppercase; opacity: .7; margin-bottom: 16px; display: block; }
.cta-title { font-size: clamp(2rem,5vw,3.5rem); font-weight: 900; margin-bottom: 20px; }
.cta-desc { font-size: 1.1rem; opacity: .85; max-width: 600px; margin: 0 auto 40px; }
.cta-btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.btn-cta-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 40px; background: #fff; color: var(--primary);
  font-weight: 900; border-radius: 16px; font-size: .95rem;
  transition: transform .2s; box-shadow: 0 20px 40px rgba(0,0,0,.2);
}
.btn-cta-primary:hover { transform: scale(1.04); }
.btn-cta-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 40px; background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2); color: #fff;
  font-weight: 900; border-radius: 16px; font-size: .95rem; transition: all .2s;
}
.btn-cta-secondary:hover { background: rgba(255,255,255,.2); }

/* ─── Banner ─── */
.banner {
  position: relative; height: 320px; overflow: hidden;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); margin: 48px 0;
}
.banner img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .5; transition: transform 1s; }
[data-theme="dark"] .banner img { opacity: .35; }
.banner:hover img { transform: scale(1.03); }
.banner-overlay-lr { position: absolute; inset: 0; background: linear-gradient(to right, var(--bg), transparent, var(--bg)); }
.banner-content {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; padding: 0 24px;
}
.banner-text {
  font-size: clamp(1.5rem,4vw,3.5rem); font-weight: 900; text-align: center;
  background: rgba(var(--bg-rgb, 249,250,251),.5); backdrop-filter: blur(8px);
  padding: 24px 40px; border-radius: 24px; border: 1px solid rgba(255,255,255,.1);
}

/* ─── Footer ─── */
footer {
  padding: 48px 24px; border-top: 1px solid var(--border);
  text-align: center; color: var(--muted); font-size: .8rem;
}

/* ─── About Page ─── */
.about-hero { padding: 80px 0 48px; }
.about-hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-title { font-size: clamp(2.5rem,6vw,5rem); font-weight: 900; line-height: 1; margin-bottom: 24px; }
.about-text { color: var(--muted); line-height: 1.8; font-size: 1.05rem; margin-bottom: 16px; }
.about-img-wrap { position: relative; }
.about-img-wrap img { width: 100%; border-radius: 32px; border: 1px solid var(--border); }
.about-img-glow {
  position: absolute; inset: -20px; border-radius: 48px;
  background: var(--primary-glow); filter: blur(40px); z-index: -1;
}
.skills-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.skill-card {
  padding: 24px; background: var(--card); border: 1px solid var(--border);
  border-radius: 16px;
}
.skill-name { font-size: .875rem; font-weight: 700; margin-bottom: 10px; display: flex; justify-content: space-between; }
.skill-bar { height: 6px; background: var(--border); border-radius: 100px; overflow: hidden; }
.skill-fill { height: 100%; background: var(--primary); border-radius: 100px; transition: width 1s ease; }
.timeline { position: relative; padding-left: 32px; }
.timeline::before { content:''; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 2px; background: var(--border); }
.timeline-item { position: relative; margin-bottom: 40px; }
.timeline-dot {
  position: absolute; left: -28px; top: 4px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--primary); border: 3px solid var(--bg);
}
.timeline-year { font-size: 11px; font-weight: 900; color: var(--primary); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 6px; }
.timeline-role { font-size: 1rem; font-weight: 800; margin-bottom: 4px; }
.timeline-company { font-size: .875rem; color: var(--muted); }

/* ─── Contact Page ─── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 64px; align-items: start; }
.contact-info h2 { font-size: 2.5rem; font-weight: 900; margin-bottom: 16px; }
.contact-info p { color: var(--muted); line-height: 1.7; margin-bottom: 32px; }
.contact-item { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.contact-icon {
  width: 44px; height: 44px; background: var(--primary-glow); color: var(--primary);
  border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-label { font-size: .8rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; }
.contact-value { font-size: .95rem; font-weight: 600; }
.contact-form { background: var(--card); border: 1px solid var(--border); border-radius: 32px; padding: 48px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: .8rem; font-weight: 700; margin-bottom: 8px; color: var(--muted); letter-spacing: .05em; }
.form-input, .form-textarea {
  width: 100%; padding: 14px 18px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 12px; font-family: inherit; font-size: .9rem; color: var(--fg);
  outline: none; transition: border-color .2s;
}
.form-input:focus, .form-textarea:focus { border-color: var(--primary); }
.form-textarea { resize: vertical; min-height: 140px; }
.form-submit {
  width: 100%; padding: 16px; background: var(--primary); color: #fff;
  font-family: inherit; font-size: 1rem; font-weight: 800;
  border: none; border-radius: 14px; cursor: pointer; transition: opacity .2s;
}
.form-submit:hover { opacity: .9; }

/* ─── Projects Page ─── */
.page-hero { padding: 80px 0 64px; }
.page-hero h1 { font-size: clamp(2.5rem,6vw,4.5rem); font-weight: 900; margin-bottom: 16px; }
.page-hero p { color: var(--muted); font-size: 1.1rem; max-width: 600px; }
.all-projects-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 40px; }

/* ─── Project Detail ─── */
.project-detail-hero {
  padding: 80px 0 48px; background: var(--card-2);
  border-bottom: 1px solid var(--border); position: relative;
}
.project-detail-hero::before {
  content:''; position: absolute; inset: 0;
  background: linear-gradient(to bottom, var(--primary-glow), transparent); pointer-events: none;
}
.back-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .85rem; font-weight: 700; color: var(--muted);
  transition: color .2s; margin-bottom: 32px;
}
.back-link:hover { color: var(--primary); }
.project-tech-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.tech-chip {
  padding: 6px 16px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 100px; font-size: 11px; font-weight: 700;
  color: var(--primary); text-transform: uppercase; letter-spacing: .1em;
}
.project-detail-title { font-size: clamp(2rem,5vw,4rem); font-weight: 900; margin-bottom: 16px; line-height: 1.1; }
.project-detail-short { font-size: 1.1rem; color: var(--muted); max-width: 700px; }
.project-detail-body { display: grid; grid-template-columns: 1fr 320px; gap: 64px; padding: 64px 0; align-items: start; }
.project-detail-content h2 { font-size: 1.5rem; font-weight: 900; margin-bottom: 20px; }
.project-detail-content p { color: var(--muted); line-height: 1.8; font-size: 1rem; }
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.feature-list li { display: flex; align-items: flex-start; gap: 12px; font-size: .95rem; color: var(--muted); line-height: 1.6; }
.feature-check { color: var(--primary); font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }
.project-sidebar { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; position: sticky; top: 96px; }
.sidebar-label { font-size: 11px; font-weight: 900; letter-spacing: .15em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.sidebar-links { display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.sidebar-link {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px; border-radius: 14px; font-weight: 700; font-size: .875rem; transition: all .2s;
}
.sidebar-link.demo { background: var(--primary); color: #fff; }
.sidebar-link.demo:hover { opacity: .9; }
.sidebar-link.source { background: var(--bg); border: 1px solid var(--border); color: var(--fg); }
.sidebar-link.source:hover { border-color: var(--primary); color: var(--primary); }
.sidebar-link.disabled { background: var(--bg); border: 1px solid var(--border); color: var(--muted); cursor: not-allowed; opacity: .6; }
.sidebar-divider { height: 1px; background: var(--border); margin: 24px 0; }
.sidebar-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.sidebar-chip {
  padding: 6px 12px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; font-size: 11px; font-weight: 700; color: var(--muted);
}

/* ─── SVG icons ─── */
svg.icon { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ─── Responsive ─── */
@media(max-width:1024px) {
  .projects-grid, .expertise-grid, .process-grid { grid-template-columns: repeat(2,1fr); }
  .tech-grid, .engagement-grid, .testimonials-grid { grid-template-columns: repeat(2,1fr); }
  .about-hero-inner, .contact-grid { grid-template-columns: 1fr; }
  .project-detail-body { grid-template-columns: 1fr; }
  .project-sidebar { position: static; }
  .all-projects-grid { grid-template-columns: repeat(2,1fr); }
}
@media(max-width:768px) {
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .projects-grid, .expertise-grid, .tech-grid, .testimonials-grid, .engagement-grid, .all-projects-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-title { letter-spacing: -.02em; }
  .section { padding: 64px 0; }
  .contact-form { padding: 28px; }
  .project-detail-hero { padding: 56px 0 32px; }
}
@media(max-width:480px) {
  .hero { padding: 80px 0 64px; }
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 16px; }
  .cta-box { padding: 48px 24px; }
}