/* ============================================================
   SATISH HARKAL — Design System
   Palette: navy bg, teal accent, slate body, ice headings
   Type: Space Grotesk (display) + Inter (body)
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

:root {
  --bg:        #0A0E1A;
  --bg2:       #0F1525;
  --bg3:       #131929;
  --surface:   #1A2135;
  --border:    #1E2D45;
  --teal:      #00D4C8;
  --teal-dim:  #00A89E;
  --teal-glow: rgba(0,212,200,0.15);
  --blue:      #3B82F6;
  --purple:    #8B5CF6;
  --heading:   #E8F0FF;
  --body:      #8892A4;
  --muted:     #4A5568;
  --white:     #FFFFFF;
  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 22px;
  --shadow:    0 4px 30px rgba(0,0,0,0.4);
  --font-d:    'Space Grotesk', sans-serif;
  --font-b:    'Inter', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--body);
  font-family: var(--font-b);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

/* ── TYPOGRAPHY ─────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-d);
  color: var(--heading);
  line-height: 1.2;
}
h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 600; }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

.teal { color: var(--teal); }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-d);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1rem;
}
.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--teal);
  border-radius: 2px;
}

/* ── NAV ────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 5%;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10,14,26,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.nav-logo {
  font-family: var(--font-d);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--heading);
}
.nav-logo span { color: var(--teal); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  font-family: var(--font-d);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--body);
  transition: color 0.2s;
  position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--teal); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--teal);
  border-radius: 2px;
}
.nav-cta {
  padding: 8px 20px;
  background: var(--teal);
  color: var(--bg) !important;
  border-radius: 50px;
  font-weight: 600 !important;
  font-size: 0.84rem !important;
  transition: opacity 0.2s, transform 0.2s !important;
}
.nav-cta:hover { opacity: 0.85; transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

/* hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--heading);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ── BUTTONS ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 50px;
  font-family: var(--font-d);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
  border: none;
}
.btn-primary {
  background: var(--teal);
  color: var(--bg);
}
.btn-primary:hover { background: var(--teal-dim); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,212,200,0.3); }
.btn-outline {
  background: transparent;
  color: var(--heading);
  border: 1.5px solid var(--border);
}
.btn-outline:hover { border-color: var(--teal); color: var(--teal); transform: translateY(-2px); }

/* ── CARDS ──────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}
.card:hover {
  border-color: var(--teal);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,212,200,0.12);
}

/* ── LAYOUT UTILS ───────────────────────────────────────── */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 5%;
}
.section {
  padding: 100px 0;
}
.section-header {
  max-width: 600px;
  margin-bottom: 60px;
}
.section-header p {
  margin-top: 12px;
  font-size: 1.05rem;
  line-height: 1.8;
}
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

/* ── SKILL BAR ──────────────────────────────────────────── */
.skill-item { margin-bottom: 20px; }
.skill-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-family: var(--font-d);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--heading);
}
.skill-track {
  height: 5px;
  background: var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--teal), var(--blue));
  border-radius: 10px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}

/* ── TECH BADGE ─────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--body);
  transition: border-color 0.2s, color 0.2s;
}
.badge:hover { border-color: var(--teal); color: var(--teal); }
.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
  flex-shrink: 0;
}

/* ── STAT BOX ───────────────────────────────────────────── */
.stat-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}
.stat-num {
  font-family: var(--font-d);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--body);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── FOOTER ─────────────────────────────────────────────── */
.footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { margin-top: 12px; font-size: 0.9rem; line-height: 1.8; }
.footer-col h5 {
  font-family: var(--font-d);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: var(--body);
  margin-bottom: 10px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--heading); }
.footer-col p { font-size: 0.9rem; margin-bottom: 8px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.84rem;
}
.social-links {
  display: flex;
  gap: 12px;
}
.social-link {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--body);
  font-size: 0.9rem;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.social-link:hover { border-color: var(--teal); color: var(--teal); background: var(--teal-glow); }

/* ── ANIMATIONS ─────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.anim-up { animation: fadeUp 0.7s ease both; }
.anim-up-2 { animation: fadeUp 0.7s 0.15s ease both; }
.anim-up-3 { animation: fadeUp 0.7s 0.3s ease both; }

/* ── MOBILE NAV ─────────────────────────────────────────── */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 70px; left: 0; right: 0;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px 5%;
    gap: 1rem;
    align-items: flex-start;
  }
  .nav-links.open { display: flex; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}

/* ── PAGE HERO GENERIC ──────────────────────────────────── */
.page-hero {
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(0,212,200,0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* ── DIVIDER ─────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 0;
}

/* ── FORM ────────────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--heading);
  margin-bottom: 8px;
  font-family: var(--font-d);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 13px 16px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--heading);
  font-family: var(--font-b);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(0,212,200,0.1);
}
.form-group textarea { resize: vertical; min-height: 130px; }

/* ── TIMELINE ────────────────────────────────────────────── */
.timeline { position: relative; }
.timeline::before {
  content: '';
  position: absolute;
  left: 20px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--teal), var(--blue), transparent);
}
.timeline-item {
  display: flex;
  gap: 32px;
  margin-bottom: 40px;
  padding-left: 0;
}
.timeline-dot {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  font-size: 0.85rem;
  font-weight: 700;
  font-family: var(--font-d);
  position: relative;
  z-index: 1;
}
.timeline-content { flex: 1; padding-top: 6px; }
.timeline-content h4 { color: var(--heading); margin-bottom: 4px; }
.timeline-date {
  font-size: 0.8rem;
  color: var(--teal);
  font-weight: 500;
  margin-bottom: 8px;
  font-family: var(--font-d);
}
.timeline-content p { font-size: 0.92rem; }

/* ── PORTFOLIO CARD ──────────────────────────────────────── */
.portfolio-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}
.portfolio-card:hover {
  border-color: var(--teal);
  transform: translateY(-6px);
  box-shadow: 0 16px 50px rgba(0,212,200,0.12);
}
.portfolio-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.portfolio-body { padding: 24px; }
.portfolio-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  font-family: var(--font-d);
}
.portfolio-body h3 { font-size: 1.1rem; margin-bottom: 10px; }
.portfolio-body p { font-size: 0.9rem; margin-bottom: 16px; }
.portfolio-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--teal);
  font-family: var(--font-d);
  transition: gap 0.2s;
}
.portfolio-link:hover { gap: 10px; }

/* ── BLOG CARD ───────────────────────────────────────────── */
.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
}
.blog-card:hover { border-color: var(--teal); transform: translateY(-4px); }
.blog-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}
.blog-body { padding: 22px; }
.blog-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.blog-cat {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: var(--font-d);
}
.blog-time { font-size: 0.8rem; color: var(--muted); }
.blog-body h3 { font-size: 1rem; margin-bottom: 8px; }
.blog-body p { font-size: 0.88rem; margin-bottom: 14px; }
.blog-link {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--teal);
  font-family: var(--font-d);
}

/* ── TESTIMONIAL ─────────────────────────────────────────── */
.testimonial {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.testimonial-quote { font-size: 2rem; color: var(--teal); margin-bottom: 12px; line-height: 1; }
.testimonial p { font-size: 0.95rem; line-height: 1.8; margin-bottom: 20px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-d);
  font-weight: 700;
  color: var(--bg);
  font-size: 1rem;
}
.testimonial-name { font-family: var(--font-d); font-weight: 600; color: var(--heading); font-size: 0.9rem; }
.testimonial-role { font-size: 0.8rem; color: var(--body); }

/* ── CONTACT INFO ITEM ───────────────────────────────────── */
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 24px;
}
.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--teal-glow);
  border: 1px solid rgba(0,212,200,0.3);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-item h4 { font-size: 0.82rem; color: var(--teal); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 4px; font-family: var(--font-d); }
.contact-item p { font-size: 0.92rem; color: var(--body); }

/* ── SERVICE CARD ────────────────────────────────────────── */
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--blue));
  transform: scaleX(0);
  transition: transform 0.3s;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,212,200,0.1);
  border-color: rgba(0,212,200,0.3);
}
.service-icon {
  width: 56px;
  height: 56px;
  background: var(--teal-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  margin-bottom: 20px;
}
.service-card h3 { font-size: 1.1rem; margin-bottom: 12px; }
.service-card p { font-size: 0.9rem; }