/* ============================================================
   Zinnum Website — Main Stylesheet
   ============================================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Custom Properties ─────────────────────────────────── */
:root {
  --primary:        #1e3a8a;
  --primary-dark:   #1e3060;
  --primary-light:  #dbeafe;
  --white:          #ffffff;
  --gray-50:        #f8faff;
  --gray-100:       #f1f5f9;
  --gray-200:       #e2e8f0;
  --gray-600:       #4b5563;
  --gray-700:       #374151;
  --gray-900:       #0f172a;
  --footer-bg:      #0f172a;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 25px rgba(0,0,0,.12), 0 4px 10px rgba(0,0,0,.08);
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Container ─────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Section Spacing ───────────────────────────────────────── */
.section {
  padding: 80px 0;
}
.section-sm {
  padding: 56px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 12px;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--gray-600);
  max-width: 600px;
}
.section-header {
  margin-bottom: 48px;
}
.section-header.centered {
  text-align: center;
}
.section-header.centered .section-subtitle {
  margin: 0 auto;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  box-shadow: 0 4px 14px rgba(30,58,138,.35);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn-outline:hover {
  background: var(--white);
  color: var(--primary);
}

.btn-outline-navy {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline-navy:hover {
  background: var(--primary);
  color: var(--white);
}

/* ── Header / Navigation ───────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--gray-100);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  position: relative;
}

/* Logo */
.logo {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}
.logo span {
  color: var(--gray-900);
}

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--gray-700);
  position: relative;
  transition: color var(--transition);
}
.site-nav a::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform var(--transition);
  border-radius: 2px;
}
.site-nav a:hover,
.site-nav a.active {
  color: var(--primary);
}
.site-nav a:hover::after,
.site-nav a.active::after {
  transform: scaleX(1);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.hamburger:hover { background: var(--gray-100); }
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Animated hamburger when open */
.nav-open .hamburger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .hamburger span:nth-child(2) { opacity: 0; }
.nav-open .hamburger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero (Home) ───────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  text-align: center;
  padding: 120px 24px 100px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content { position: relative; }
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  opacity: 0.92;
  max-width: 580px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Page Hero (inner pages) ───────────────────────────────── */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  text-align: center;
  padding: 72px 24px 64px;
}
.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.page-hero p {
  font-size: 1.05rem;
  opacity: 0.9;
  max-width: 540px;
  margin: 0 auto;
}

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 32px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* ── Service Cards ─────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid var(--gray-100);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
}
.service-card p {
  font-size: 0.92rem;
  color: var(--gray-600);
  line-height: 1.65;
}
.service-card .learn-more {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
.service-card .learn-more:hover {
  border-color: var(--primary);
}

/* ── Why Choose Us / Features ──────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--gray-50);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  border: 1px solid var(--gray-200);
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  background: var(--white);
}
.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.65;
}

/* ── About Preview ─────────────────────────────────────────── */
.about-preview {
  background: var(--gray-50);
}
.about-preview-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-text h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 16px;
}
.about-text p {
  color: var(--gray-600);
  line-height: 1.75;
  margin-bottom: 12px;
}
.about-text .btn { margin-top: 8px; }

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.stat-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
}
.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--gray-600);
  margin-top: 4px;
}

/* ── CTA Banner ────────────────────────────────────────────── */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  text-align: center;
  padding: 80px 24px;
}
.cta-banner h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 14px;
}
.cta-banner p {
  font-size: 1.05rem;
  opacity: 0.9;
  max-width: 500px;
  margin: 0 auto 32px;
}

/* ── Mission / Vision ──────────────────────────────────────── */
.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.mission-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 40px 36px;
  box-shadow: var(--shadow-md);
  border-top: 4px solid var(--primary);
}
.mission-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 14px;
}
.mission-card p {
  color: var(--gray-600);
  line-height: 1.75;
}

/* ── Team ──────────────────────────────────────────────────── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.team-card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 36px 28px;
  text-align: center;
  border: 1px solid var(--gray-100);
  transition: transform var(--transition), box-shadow var(--transition);
}
.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0 auto 18px;
  border: 3px solid var(--primary);
}
.team-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 4px;
}
.team-card .team-role {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
}

/* ── Values ────────────────────────────────────────────────── */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.value-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: transform var(--transition), box-shadow var(--transition);
}
.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.value-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}
.value-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}
.value-card p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.65;
}

/* ── Company Story ─────────────────────────────────────────── */
.story-section {
  background: var(--gray-50);
}
.story-inner {
  max-width: 820px;
  margin: 0 auto;
}
.story-inner p {
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 18px;
  font-size: 1.02rem;
}

/* ── Contact Layout ────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}

/* Form */
.contact-form-card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 40px 36px;
  border: 1px solid var(--gray-100);
}
.contact-form-card h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.93rem;
  color: var(--gray-700);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30,58,138,.12);
}
.form-group textarea {
  resize: vertical;
  min-height: 140px;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #9ca3af;
}

/* Contact Info Sidebar */
.contact-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-info-card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 24px 22px;
  border: 1px solid var(--gray-100);
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: transform var(--transition), box-shadow var(--transition);
}
.contact-info-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-info-body h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 4px;
}
.contact-info-body p,
.contact-info-body a {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.5;
}
.contact-info-body a:hover { color: var(--primary); }

/* ── Footer ────────────────────────────────────────────────── */
.site-footer {
  background: var(--footer-bg);
  color: #bfdbfe;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding: 64px 0 40px;
}

.footer-brand .logo {
  color: var(--white);
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: #93c5fd;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 18px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 0.9rem;
  color: #93c5fd;
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--white); }

.footer-col p {
  font-size: 0.9rem;
  color: #93c5fd;
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p {
  font-size: 0.85rem;
  color: #60a5fa;
}

/* ── Utility ───────────────────────────────────────────────── */
.text-center { text-align: center; }
.mt-4  { margin-top: 16px; }
.mt-8  { margin-top: 32px; }
.mb-4  { margin-bottom: 16px; }
.bg-gray { background: var(--gray-50); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .about-preview-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* Hamburger visible */
  .hamburger { display: flex; }

  /* Nav hidden by default on mobile */
  .site-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--gray-100);
    padding: 8px 0;
  }
  .site-nav a {
    padding: 13px 24px;
    border-radius: 0;
  }
  .site-nav a::after { display: none; }
  .site-nav a:hover,
  .site-nav a.active {
    background: var(--primary-light);
  }

  /* Show nav when open */
  .nav-open .site-nav { display: flex; }

  .section { padding: 56px 0; }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 0 24px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .contact-form-card { padding: 28px 20px; }
}

@media (max-width: 480px) {
  .hero { padding: 80px 20px 70px; }
  .page-hero { padding: 52px 20px 44px; }
  .team-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .section-title { font-size: 1.6rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
}