/* ============================================
   ZEDAN CONSULTING — STYLES
   Palantir/C3.ai inspired industrial dark theme
   ============================================ */

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

/* Design tokens */
:root {
  --bg-primary:    #0a0c14;
  --bg-secondary:  #0d1020;
  --bg-card:       #111827;
  --border:        #1e2538;
  --text-primary:  #f0f4ff;
  --text-secondary:#8892aa;
  --accent:        #3b82f6;
  --accent-hover:  #2563eb;
  --accent-glow:   rgba(59, 130, 246, 0.12);
  --font:          'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
  scroll-behavior: smooth;
}

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

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

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

/* ============================================
   LAYOUT
   ============================================ */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 6rem 0;
}

.section-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 2px;
}

.section-header {
  margin-bottom: 3.5rem;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-top: 0.5rem;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 0.875rem 2rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  letter-spacing: 0.01em;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  padding: 0.875rem 2rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 4px;
  border: 1px solid var(--accent);
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.btn-secondary:hover {
  background: var(--accent-glow);
  transform: translateY(-2px);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  background: rgba(10, 12, 20, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-primary);
  text-decoration: none;
}

.accent {
  color: var(--accent);
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-cta {
  color: var(--text-primary) !important;
  background: var(--accent);
  padding: 0.5rem 1.25rem !important;
  border-radius: 4px;
  transition: background 0.2s !important;
}

.nav-cta:hover {
  background: var(--accent-hover) !important;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 6rem;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 40%, transparent 100%);
}

.hero-container {
  max-width: 1160px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.75rem;
  padding: 0.375rem 0.875rem;
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 2px;
}

.hero-headline {
  font-size: clamp(2.75rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  max-width: 820px;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

/* ============================================
   THE CHALLENGE
   ============================================ */
.problem {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.problem-text h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin: 0.5rem 0 1.5rem;
}

.problem-text p + p {
  margin-top: 1rem;
}

.problem-stats {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 1.5rem 2rem;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============================================
   SERVICES
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2.5rem;
  border-radius: 4px;
  transition: border-color 0.2s, transform 0.2s;
}

.service-card:hover {
  border-color: rgba(59, 130, 246, 0.5);
  transform: translateY(-2px);
}

.service-icon {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1.25rem;
  font-family: 'Courier New', monospace;
}

.service-card h3 {
  font-size: 1.0625rem;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.service-card p {
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* ============================================
   ABOUT
   ============================================ */
.about {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}

.about-text h2 {
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  margin: 0.5rem 0 1.5rem;
}

.about-text p + p {
  margin-top: 1rem;
}

.about-text .btn-secondary {
  margin-top: 2rem;
}

.about-credentials {
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.credential-item {
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  transition: background 0.2s;
}

.credential-item:last-child {
  border-bottom: none;
}

.credential-item:hover {
  background: var(--bg-card);
}

.credential-number {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.credential-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============================================
   RESULTS
   ============================================ */
.results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  padding: 2rem 1.5rem;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: transform 0.2s;
}

.result-card:hover {
  transform: translateY(-2px);
}

.result-number {
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.025em;
  line-height: 1.1;
}

.result-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   CONTACT
   ============================================ */
.contact-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.contact-inner h2 {
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  margin: 0.5rem 0 1rem;
}

.contact-inner > p {
  margin-bottom: 2.5rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.875rem 1.125rem;
  font-size: 0.9375rem;
  font-family: var(--font);
  border-radius: 4px;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #3d4a63;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
}

.contact-form .btn-primary {
  align-self: flex-start;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .results-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding: 7rem 2rem 5rem;
  }

  .problem-grid,
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}