/* ============================================
   DataCraft Consulting - Design System
   Dark editorial style with warm amber accents
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,wght@0,400;0,500;0,700&family=DM+Serif+Display&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-primary: #0C0F14;
  --bg-secondary: #141820;
  --bg-card: #1A1F2B;
  --bg-card-hover: #222838;
  --bg-accent: #1E2433;
  
  --text-primary: #E8EAF0;
  --text-secondary: #9BA3B5;
  --text-muted: #6B7280;
  --text-inverse: #0C0F14;
  
  --accent: #E8A84C;
  --accent-hover: #F0BC6A;
  --accent-dim: rgba(232, 168, 76, 0.15);
  --accent-glow: rgba(232, 168, 76, 0.08);
  
  --blue: #5B8DEF;
  --green: #4ADE80;
  --red: #EF5B5B;
  --cyan: #67E8F9;
  
  --border: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(232, 168, 76, 0.3);
  
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.4);
}

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

html { scroll-behavior: smooth; }

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

::selection {
  background: var(--accent);
  color: var(--text-inverse);
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== TYPOGRAPHY ===== */

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1rem;
}

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

.label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
  display: block;
}

/* ===== HEADER ===== */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12, 15, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.header__logo-mark {
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: 6px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-inverse);
  letter-spacing: -0.02em;
}

.header__logo-text {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

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

.header__nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
  text-decoration: none;
}

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

.header__lang {
  display: flex;
  gap: 6px;
  padding: 4px 10px;
  background: var(--bg-card);
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 0.8rem;
}

.header__lang a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
}

.header__lang a.active { color: var(--accent); }

.header__menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 6px;
}

/* ===== HERO ===== */

.hero {
  padding: 6rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero__label { margin-bottom: 1.5rem; }

.hero h1 {
  margin-bottom: 1.5rem;
  max-width: 720px;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero__ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ===== BUTTONS ===== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
}

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

.btn--primary:hover {
  background: var(--accent-hover);
  color: var(--text-inverse);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(232, 168, 76, 0.3);
}

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

.btn--secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--small {
  padding: 10px 20px;
  font-size: 0.85rem;
}

/* ===== PROOF BAR ===== */

.proof-bar {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 2rem 0;
  background: var(--bg-secondary);
}

.proof-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.proof-bar__item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--accent);
  font-weight: 400;
}

.proof-bar__item span {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ===== SECTIONS ===== */

.section {
  padding: 5rem 0;
}

.section--alt {
  background: var(--bg-secondary);
}

.section__header {
  margin-bottom: 3rem;
}

.section__header h2 {
  margin-bottom: 0.75rem;
}

.section__header p {
  max-width: 560px;
}

.section__header--center {
  text-align: center;
}

.section__header--center p {
  margin-left: auto;
  margin-right: auto;
}

/* ===== CARDS ===== */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all 0.3s ease;
}

.card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.card__icon {
  width: 48px;
  height: 48px;
  background: var(--accent-dim);
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  margin-bottom: 1.25rem;
}

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

.card p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* ===== HOW IT WORKS ===== */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 2rem;
  border-left: 2px solid var(--border);
  counter-increment: step;
}

.step::before {
  content: counter(step);
  position: absolute;
  left: -17px;
  top: 2rem;
  width: 32px;
  height: 32px;
  background: var(--accent);
  color: var(--text-inverse);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
}

.step h3 {
  margin-bottom: 0.5rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.1rem;
}

.step p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ===== PRICING ===== */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
}

.pricing-card--featured {
  border-color: var(--accent);
  position: relative;
}

.pricing-card--featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--text-inverse);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-card__name {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.pricing-card__price {
  font-family: var(--font-display);
  font-size: 2.8rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.pricing-card__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.pricing-card__features {
  list-style: none;
  flex: 1;
  margin-bottom: 2rem;
}

.pricing-card__features li {
  padding: 0.5rem 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.pricing-card__features li::before {
  content: '✓';
  color: var(--green);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

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

/* ===== CASE STUDIES ===== */

.case-study-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  margin-bottom: 2rem;
}

.case-study-card__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.case-study-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.case-study-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.metrics-row {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 1.5rem 0;
}

.metric {
  text-align: center;
  min-width: 100px;
}

.metric__value {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
}

.metric__label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 4px 12px;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 20px;
  letter-spacing: 0.02em;
}

/* ===== ABOUT / FOUNDER ===== */

.founder-section {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: start;
}

.founder__photo-placeholder {
  aspect-ratio: 3 / 4;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: grid;
  place-items: center;
  font-size: 4rem;
  color: var(--text-muted);
}

.founder__photo {
  width: 240px;
  height: 240px;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  display: block;
}

.founder__bio h2 { margin-bottom: 1.5rem; }

.founder__bio blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1.5rem;
  margin: 2rem 0;
  font-style: italic;
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* ===== CONTACT ===== */

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

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.contact-card--cta {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(232, 168, 76, 0.05) 100%);
}

.contact-item {
  margin-bottom: 2rem;
}

.contact-item h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.contact-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.contact-item a {
  color: var(--accent);
  font-weight: 600;
}

/* ===== PROCESS STEPS (contact page) ===== */

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.process-step {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.process-step__num {
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: var(--text-inverse);
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  margin-bottom: 1rem;
}

.process-step h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.process-step p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ===== CTA BAND ===== */

.cta-band {
  padding: 4rem 0;
  text-align: center;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.cta-band h2 { margin-bottom: 0.75rem; }
.cta-band p { margin-bottom: 2rem; }

/* ===== FOOTER ===== */

.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0 1.5rem;
  background: var(--bg-primary);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer__brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 300px;
}

.footer h4 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-primary);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer a {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  text-decoration: none;
}

.footer a:hover { color: var(--accent); }

.footer__bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== BLOG PLACEHOLDER ===== */

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all 0.3s;
}

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

.blog-card__date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.blog-card h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.blog-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.blog-card a.read-more {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== PAGE HEADER (for inner pages) ===== */

.page-hero {
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--border);
}

.page-hero h1 { margin-bottom: 0.75rem; }

.page-hero p {
  font-size: 1.1rem;
  max-width: 600px;
}

/* ===== DETAIL SECTIONS (case study detail, service detail) ===== */

.detail-block {
  padding: 2.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
}

.detail-block h3 {
  color: var(--accent);
  margin-bottom: 1rem;
  font-family: var(--font-body);
  font-weight: 700;
}

.detail-block ul {
  list-style: none;
  padding: 0;
}

.detail-block ul li {
  padding: 0.4rem 0 0.4rem 1.5rem;
  position: relative;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.detail-block ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ===== VALUES GRID ===== */

.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.value-card__icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.value-card h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.value-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ===== MOBILE ===== */

@media (max-width: 900px) {
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .steps { grid-template-columns: 1fr; }
  .founder-section { grid-template-columns: 1fr; gap: 2rem; }
  .founder__photo-placeholder { max-width: 240px; }
  .contact-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .values-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .header__nav { 
    position: fixed; top: 0; right: -100%; height: 100vh;
    width: 80%; max-width: 320px;
    background: var(--bg-primary); border-left: 1px solid var(--border);
    flex-direction: column; padding: 5rem 2rem 2rem;
    gap: 1.5rem; transition: right 0.3s ease;
    z-index: 200;
  }
  .header__nav.active { right: 0; }
  .header__menu-btn { display: block; }
  .proof-bar__grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: 1fr; }
  .hero { padding: 4rem 0 3rem; }
  
  .menu-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,0.6); z-index: 150;
  }
  .menu-overlay.active { display: block; }
  .menu-close {
    display: block; position: absolute; top: 1rem; right: 1rem;
    background: none; border: none; color: var(--text-primary);
    font-size: 1.8rem; cursor: pointer;
  }
}

@media (min-width: 769px) {
  .menu-overlay, .menu-close { display: none !important; }
}

/* ===== ANIMATIONS ===== */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero h1, .hero__subtitle, .hero__ctas, .hero__label {
  animation: fadeUp 0.6s ease both;
}
.hero__label { animation-delay: 0.1s; }
.hero h1 { animation-delay: 0.2s; }
.hero__subtitle { animation-delay: 0.3s; }
.hero__ctas { animation-delay: 0.4s; }