/* ============================================================
   COD-YQ Technologies — Layout
   Navbar, footer, page sections, grid systems, hero layouts.
   ============================================================ */

/* ══════════════════════════════════════════════════════════
   NAVBAR
   ══════════════════════════════════════════════════════════ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--transition-base), backdrop-filter var(--transition-base), border-color var(--transition-base);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(8, 12, 20, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--color-border);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  flex-shrink: 0;
}

.navbar__logo {
  height: 32px;
  width: auto;
  object-fit: contain;
  /* Fallback if logo file missing */
  min-width: 32px;
}

.navbar__logo.error {
  background: var(--color-gradient);
  border-radius: 6px;
  display: block;
}

.navbar__name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  white-space: nowrap;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.navbar__link {
  font-size: var(--size-nav);
  font-weight: var(--weight-nav);
  color: var(--color-text-secondary);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-fast);
  padding-bottom: 2px;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gradient);
  border-radius: 2px;
  transition: width var(--transition-base);
}

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

.navbar__link.active::after,
.navbar__link:hover::after {
  width: 100%;
}

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

/* Hamburger (mobile) */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  border: none;
  background: none;
  z-index: 1010;
}

.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast), width var(--transition-base);
  transform-origin: center;
}

.navbar__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.navbar__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile overlay */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.nav-overlay.open { display: flex; }

.nav-overlay__link {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  font-weight: 700;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  opacity: 0;
  transform: translateY(20px);
}

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

.nav-overlay__link.active {
  background: var(--color-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Responsive navbar */
@media (max-width: 1024px) {
  .navbar__nav,
  .navbar__actions .btn--primary { display: none; }
  .navbar__hamburger { display: flex; }
}

@media (max-width: 768px) {
  .navbar__inner { padding: 0 var(--space-md); }
}

@media (max-width: 480px) {
  .navbar__inner { padding: 0 var(--space-sm); }
  .navbar__name  { display: none; }
}

/* ══════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════ */

.footer {
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

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

.footer__brand-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.footer__logo {
  height: 30px;
  width: auto;
  object-fit: contain;
}

.footer__brand-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.footer__tagline {
  font-size: 0.85rem;
  line-height: 1.6;
  max-width: 28ch;
}

.footer__socials {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.footer__social-link {
  width: 36px;
  height: 36px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.footer__social-link:hover {
  border-color: var(--color-border-accent);
  box-shadow: 0 0 10px var(--color-glow-orange);
}

.footer__social-link svg {
  width: 16px;
  height: 16px;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer__social-link:hover svg { color: var(--color-accent-orange); }

.footer__col-title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer__nav-link {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__nav-link:hover { color: var(--color-accent-orange); }

.footer__contact-item {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.footer__contact-item a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer__contact-item a:hover { color: var(--color-accent-orange); }

/* Gradient divider */
.footer__divider {
  height: 1px;
  background: var(--color-gradient);
  opacity: 0.2;
  margin-bottom: var(--space-lg);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__copy {
  font-size: 0.83rem;
  color: var(--color-text-secondary);
}

.footer__bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer__bottom-link {
  font-size: 0.83rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer__bottom-link:hover { color: var(--color-accent-orange); }

@media (max-width: 1024px) {
  .footer__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .footer__top { grid-template-columns: 1fr; gap: var(--space-lg); }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}

/* ══════════════════════════════════════════════════════════
   SECTIONS — shared padding and structure
   ══════════════════════════════════════════════════════════ */

.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.section--surface {
  background: var(--color-bg-surface);
}

.section--cta {
  background: var(--color-bg-surface);
  text-align: center;
  padding: var(--space-3xl) 0;
}

@media (max-width: 768px) {
  .section         { padding: var(--space-2xl) 0; }
  .section--cta    { padding: var(--space-2xl) 0; }
}

@media (max-width: 480px) {
  .section         { padding: var(--space-xl) 0; }
  .section--cta    { padding: var(--space-xl) 0; }
}

.section--cta h2 { margin-bottom: var(--space-sm); }
.section--cta p  { margin-bottom: var(--space-lg); max-width: 50ch; margin-left: auto; margin-right: auto; }

.section--cta .cta-email {
  margin-top: var(--space-md);
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

.section--cta .cta-email a {
  color: var(--color-accent-orange);
}

/* ══════════════════════════════════════════════════════════
   HERO — index.html full-width banner
   ══════════════════════════════════════════════════════════ */

.hero {
  padding-top: var(--nav-height);
  padding-bottom: 0;
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Dark overlay for text readability */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(8, 12, 20, 0.60) 0%,
    rgba(8, 12, 20, 0.35) 55%,
    rgba(8, 12, 20, 0.55) 100%
  );
  z-index: 0;
}

/* Purple glow orb */
.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  right: -5%;
  width: clamp(280px, 45vw, 600px);
  height: clamp(280px, 45vw, 600px);
  background: radial-gradient(circle, rgba(123, 63, 228, 0.18) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.hero__inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
}

@media (max-width: 768px) {
  .hero__inner {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
  }
  .hero__brand-logo { height: 80px; }
}

@media (max-width: 480px) {
  .hero__inner {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
  }
  .hero__brand-logo { height: 64px; }
  .hero__content p  { font-size: 0.97rem; }
}

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

.hero__brand-logo {
  height: 120px;
  width: auto;
  margin-bottom: var(--space-lg);
  display: block;
  margin-left: auto;
  margin-right: auto;
  filter: drop-shadow(0 4px 24px rgba(247, 148, 29, 0.25));
  animation: fadeUp 0.5s 0.1s ease both, logoBounce 2s 0.8s ease-in-out infinite;
}

.hero__company-name {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent-orange);
  margin-bottom: var(--space-md);
  min-height: 1.4em;
  overflow: hidden;
}

@media (max-width: 480px) {
  .hero__company-name { letter-spacing: 0.12em; font-size: 0.78rem; }
}

.hero__letter {
  display: inline-block;
  opacity: 0;
  will-change: transform, opacity;
}

.hero__letter-space {
  display: inline-block;
  width: 0.45em;
}

.hero__content h1 {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.hero__content p {
  font-size: 1.1rem;
  max-width: 56ch;
  margin: 0 auto var(--space-lg);
  line-height: 1.85;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .hero { min-height: 80vh; }
  .hero__content h1 { font-size: clamp(1.9rem, 6vw, 2.6rem); }
  .hero__content p { max-width: 100%; }
}

@media (max-width: 480px) {
  .hero__content h1 { font-size: 1.75rem; }
}

/* ══════════════════════════════════════════════════════════
   SERVICES GRID — 2×2
   ══════════════════════════════════════════════════════════ */

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

@media (max-width: 768px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════
   WHY GRID — 2×2
   ══════════════════════════════════════════════════════════ */

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

@media (max-width: 768px) {
  .why-grid { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════
   WORK PREVIEW — 3 columns
   ══════════════════════════════════════════════════════════ */

.work-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

@media (max-width: 1024px) {
  .work-preview-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .work-preview-grid { grid-template-columns: 1fr; }
}

/* Full work page 2×3 grid */
.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

@media (max-width: 1024px) {
  .work-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .work-grid { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════
   ABOUT PREVIEW — two column
   ══════════════════════════════════════════════════════════ */

.about-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.about-preview__left h2 {
  margin-bottom: var(--space-md);
}

.about-preview__left p {
  margin-bottom: var(--space-lg);
  line-height: 1.85;
  font-size: 1rem;
}

@media (max-width: 768px) {
  .about-preview {
    grid-template-columns: 1fr;
  }
}

/* ══════════════════════════════════════════════════════════
   ABOUT PAGE LAYOUTS
   ══════════════════════════════════════════════════════════ */

/* Story two column */
.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-story__text p {
  font-size: 1.05rem;
  line-height: 1.85;
}

.about-visual {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--border-radius-lg);
  object-fit: cover;
}

.about-visual-fallback {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-bg-card);
  border: 1px dashed var(--color-border);
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: 0.78rem;
}

/* Values 2×2 */
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* Approach list */
.approach-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.approach-item {
  border-bottom: 1px solid var(--color-border);
  border-left: none;
  border-radius: 0;
}

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

@media (max-width: 768px) {
  .about-story { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════
   CONTACT PAGE
   ══════════════════════════════════════════════════════════ */

.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

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

@media (max-width: 1024px) {
  .contact-layout { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════
   PAGE HERO (inner pages — work, about, contact)
   ══════════════════════════════════════════════════════════ */

.page-hero {
  padding-top: calc(var(--nav-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

@media (max-width: 768px) {
  .page-hero {
    padding-top: calc(var(--nav-height) + var(--space-xl));
    padding-bottom: var(--space-lg);
  }
  .page-hero h1 { font-size: clamp(1.9rem, 6vw, 2.6rem); }
  .page-hero p  { font-size: 1rem; }
}

@media (max-width: 480px) {
  .page-hero {
    padding-top: calc(var(--nav-height) + var(--space-lg));
    padding-bottom: var(--space-md);
  }
  .page-hero h1 { font-size: 1.75rem; }
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: clamp(300px, 80vw, 800px);
  height: clamp(200px, 40vw, 400px);
  background: radial-gradient(ellipse, rgba(123,63,228,0.10) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -5%;
  width: clamp(220px, 40vw, 500px);
  height: clamp(220px, 40vw, 500px);
  background: radial-gradient(circle, rgba(247, 148, 29, 0.08) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.page-hero h1 {
  margin-bottom: var(--space-md);
  position: relative;
}

.page-hero p {
  font-size: 1.1rem;
  max-width: 52ch;
  margin: 0 auto;
  position: relative;
}

/* ══════════════════════════════════════════════════════════
   VISION/MISSION SECTION (About)
   ══════════════════════════════════════════════════════════ */

.vm-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

@media (max-width: 768px) {
  .vm-section { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════
   WORK PREVIEW — bottom link
   ══════════════════════════════════════════════════════════ */

.section__footer {
  text-align: center;
  margin-top: var(--space-xl);
}