/* ============================================
   SUPERCRANK - style.css
   Dark theme, orange accent, clean professional
   ============================================ */

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

:root {
  --bg-primary: #0b0f19;
  --bg-surface: #131825;
  --bg-elevated: #1a2035;
  --border: #1e293b;
  --border-light: #2a3a52;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #f97316;
  --accent-hover: #fb923c;
  --accent-glow: rgba(249, 115, 22, 0.15);
  --accent-subtle: rgba(249, 115, 22, 0.08);
  --success: #22c55e;
  --error: #ef4444;
  --radius: 8px;
  --radius-lg: 12px;
  --max-width: 1200px;
  --nav-height: 72px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }

img { max-width: 100%; height: auto; display: block; }

/* --- Typography --- */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; color: var(--text-primary); }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
h4 { font-size: 1rem; }
p { color: var(--text-secondary); }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-title { margin-bottom: 1rem; }
.section-subtitle { font-size: 1.1rem; max-width: 640px; }

/* --- Layout --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
section { padding: 5rem 0; }
.section-alt { background: var(--bg-surface); }

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active { color: var(--text-primary); }

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.nav-cta {
  background: var(--accent);
  color: var(--bg-primary) !important;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.85rem;
  transition: background 0.2s, transform 0.2s;
}

.nav-cta:hover {
  background: var(--accent-hover);
  color: var(--bg-primary) !important;
  transform: translateY(-1px);
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 6px 0;
  transition: transform 0.3s, opacity 0.3s;
  border-radius: 1px;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* --- Hero --- */
.hero {
  padding: calc(var(--nav-height) + 5rem) 0 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero h1 { margin-bottom: 1.25rem; position: relative; }
.hero h1 span { color: var(--accent); }

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  max-width: 680px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.25);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* --- Stats Row --- */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.stat { text-align: center; }

.stat-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* --- Cards (services, work) --- */
.card-grid {
  display: grid;
  gap: 1.5rem;
}

.card-grid-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-subtle);
  border: 1px solid rgba(249, 115, 22, 0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.card h3 { margin-bottom: 0.75rem; }

.card p {
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 1rem;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.6rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
}

.tag-early {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.75rem;
  background: rgba(249, 115, 22, 0.1);
  border: 1px solid rgba(249, 115, 22, 0.3);
  border-radius: 4px;
  color: var(--accent);
  display: inline-block;
  margin-bottom: 0.75rem;
}

/* --- Case Study Cards --- */
.case-card {
  background: var(--bg-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;
}

.case-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.case-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.case-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-card-body { padding: 1.75rem; }
.case-card-body h3 { margin-bottom: 0.5rem; }
.case-card-body p { margin-bottom: 1rem; }

.case-stats {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.case-stat {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.case-stat strong {
  color: var(--accent);
  font-size: 1.1rem;
  display: block;
  margin-bottom: 0.15rem;
}

/* --- Featured Section --- */
.featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.featured-img {
  aspect-ratio: 16/10;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.featured-content h2 { margin-bottom: 1rem; }
.featured-content p { margin-bottom: 1.5rem; line-height: 1.7; }

/* --- Tech Stack Grid --- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
}

.tech-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: border-color 0.2s;
}

.tech-item:hover { border-color: var(--accent); color: var(--text-primary); }

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: start;
}

.about-photo {
  width: 280px;
  height: 340px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.about-content h2 { margin-bottom: 1rem; }
.about-content p { margin-bottom: 1.25rem; line-height: 1.75; }

/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea { resize: vertical; min-height: 160px; }

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

.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }

.contact-method {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.contact-method h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.contact-method p {
  color: var(--text-primary);
  font-size: 1rem;
}

.contact-method a { color: var(--accent); }

/* --- Form Status --- */
.form-status {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-top: 1rem;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--success);
}

.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--error);
}

/* --- CTA Banner --- */
.cta-banner {
  text-align: center;
  padding: 4rem 0;
}

.cta-banner h2 { margin-bottom: 1rem; }
.cta-banner p { margin-bottom: 2rem; max-width: 540px; margin-left: auto; margin-right: auto; }

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

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

.footer-text {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.82rem;
  transition: color 0.2s;
}

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

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Process Steps --- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: step;
}

.process-step {
  text-align: center;
  padding: 1.5rem 1rem;
  position: relative;
  counter-increment: step;
}

.process-step::before {
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-subtle);
  border: 2px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  margin: 0 auto 1rem;
}

.process-step h4 { margin-bottom: 0.5rem; }
.process-step p { font-size: 0.85rem; }

/* --- Page Header (inner pages) --- */
.page-header {
  padding: calc(var(--nav-height) + 3rem) 0 3rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.page-header .section-label { margin-bottom: 0.5rem; }
.page-header h1 { margin-bottom: 0.75rem; }
.page-header p { max-width: 600px; margin: 0 auto; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .featured { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  section { padding: 3.5rem 0; }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
  }

  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }

  .card-grid-2,
  .card-grid-3 { grid-template-columns: 1fr; }

  .stats { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .stat-value { font-size: 1.6rem; }

  .about-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-photo { margin: 0 auto; width: 200px; height: 240px; }

  .contact-grid { grid-template-columns: 1fr; }

  .process-steps { grid-template-columns: 1fr 1fr; }

  .footer .container { flex-direction: column; gap: 1rem; text-align: center; }
}

@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr; gap: 1.5rem; }
  .process-steps { grid-template-columns: 1fr; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
}