/* ============================================================
   LAYOUT.CSS
   Header · Navigation · Hero · About · Footer
   ============================================================ */


/* ── HEADER ── */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 5%;
  min-height: var(--header-height);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo a {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 62px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-text strong {
  font-size: var(--text-md);
  color: var(--primary);
  line-height: 1.3;
}

.logo-text span {
  font-size: var(--text-sm);
  color: var(--text-light);
  font-weight: 600;
}


/* ── NAVIGATION ── */
nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

nav ul {
  display: flex;
  gap: var(--space-sm);
}

nav a {
  padding: var(--space-sm) 12px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  color: var(--text-body);
  transition: color var(--ease), background var(--ease);
}

nav a:hover,
nav a.active-link {
  color: var(--primary);
  background: var(--bg-light);
}

/* Hamburger */
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-xs);
  z-index: 1002;
}

.menu-toggle span {
  width: 20px;
  height: 2px;
  background: var(--primary);
  transition: transform var(--ease), opacity var(--ease);
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu — hidden by default, shown via JS */
.mobile-menu {
  display: none;
}


/* ── HERO ── */
.hero {
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(45, 10, 25, 0.94), rgba(180, 40, 80, 0.80)),
    url("/static/img/ctvt_hero.png") center / cover no-repeat;
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 5%;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: var(--text-3xl);
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.hero p {
  font-size: var(--text-md);
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: var(--space-lg);
}


/* ── ABOUT ── */
.about {
  display: flex;
  justify-content: center;
   min-height: 70vh;
  align-items: center;
}

.about-content {
  max-width: 800px;
  text-align: center;
}

.about-content p {
  font-size: var(--text-md);
  color: var(--text-mid);
  margin-bottom: var(--space-lg);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
  text-align: left;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--bg-light);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  font-weight: 500;
  color: var(--text-body);
}

.feature-list li span {
  color: var(--accent);
}


/* ── FOOTER ── */
footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-2xl) 5% var(--space-md);
}

.footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  max-width: var(--max-width);
  margin: 0 auto var(--space-xl);
}

.footer-col strong {
  display: block;
  color: var(--text-inverse);
  font-size: var(--text-md);
  margin-bottom: var(--space-md);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-col a:hover {
  color: var(--accent-mid);
  padding-left: var(--space-xs);
  transition: padding var(--ease), color var(--ease);
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-bottom {
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: var(--text-sm);
}