/* ============================================================
   J's Luxury Detailing — styles.css
   Mobile-first, navy/charcoal + gold palette
   ============================================================ */

/* ----------------------------------------------------------
   1. CUSTOM PROPERTIES
   ---------------------------------------------------------- */
:root {
  /* Colors */
  --color-bg:          #0d1520;
  --color-bg-2:        #121d2e;
  --color-bg-3:        #0a0f18;
  --color-surface:     #172035;
  --color-border:      rgba(201, 168, 76, 0.15);

  --color-gold:        #c9a84c;
  --color-gold-light:  #e0c06a;
  --color-gold-dim:    rgba(201, 168, 76, 0.12);

  --color-text:        #f0ede6;
  --color-text-muted:  #8a92a6;
  --color-text-dim:    #5a6278;

  /* Typography */
  --font-serif:   'Cormorant Garamond', Georgia, serif;
  --font-sans:    'Inter', system-ui, sans-serif;

  /* Spacing scale */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   1.5rem;
  --space-lg:   2.5rem;
  --space-xl:   4rem;
  --space-2xl:  6rem;

  /* Layout */
  --max-width:  1200px;
  --nav-height: 72px;

  /* Transitions */
  --transition: 0.25s ease;
}

/* ----------------------------------------------------------
   2. RESET & BASE
   ---------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ----------------------------------------------------------
   3. UTILITIES
   ---------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section-pad {
  padding-block: var(--space-xl);
}

.gold-text {
  color: var(--color-gold);
}

.section-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-xs);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
}

.section-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 52ch;
  margin-top: var(--space-sm);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-header .section-desc {
  margin-inline: auto;
}

/* ----------------------------------------------------------
   4. BUTTONS
   ---------------------------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.85em 2em;
  border-radius: 2px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition),
              color var(--transition),
              border-color var(--transition),
              transform var(--transition);
}

.btn:active {
  transform: scale(0.97);
}

/* Solid gold */
.btn-gold {
  background-color: var(--color-gold);
  color: var(--color-bg);
  border-color: var(--color-gold);
}

.btn-gold:hover {
  background-color: var(--color-gold-light);
  border-color: var(--color-gold-light);
}

/* Outline gold */
.btn-gold-outline {
  background-color: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.btn-gold-outline:hover {
  background-color: var(--color-gold-dim);
}

/* Outline white */
.btn-outline {
  background-color: transparent;
  color: var(--color-text);
  border-color: rgba(240, 237, 230, 0.4);
}

.btn-outline:hover {
  border-color: var(--color-text);
}

/* Small variant */
.btn-sm {
  font-size: 0.72rem;
  padding: 0.6em 1.4em;
}

/* ----------------------------------------------------------
   5. HEADER / NAV
   ---------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: transparent;
  transition: background-color var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background-color: rgba(13, 21, 32, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  gap: 0;
}

.logo-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.logo-sub {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-gold);
}

/* Hamburger toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav drawer */
.primary-nav {
  position: fixed;
  inset: 0;
  background-color: rgba(10, 15, 24, 0.98);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.primary-nav.is-open {
  opacity: 1;
  pointer-events: all;
}

.nav-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  text-align: center;
}

.nav-link {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.02em;
  transition: color var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-gold);
  transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-gold);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.nav-cta {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background-color: var(--color-gold);
  color: var(--color-bg);
  padding: 0.75em 2em;
  border-radius: 2px;
}

.nav-link.nav-cta::after {
  display: none;
}

.nav-link.nav-cta:hover {
  background-color: var(--color-gold-light);
  color: var(--color-bg);
}

/* Desktop nav */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .primary-nav {
    position: static;
    background: none;
    opacity: 1;
    pointer-events: all;
  }

  .nav-list {
    flex-direction: row;
    gap: var(--space-md);
  }

  .nav-link {
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
}

/* ----------------------------------------------------------
   6. HERO
   ---------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--color-bg-3);
  background-image: url('../images/hero/porshe.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(8, 13, 22, 0.55) 0%,
    rgba(8, 13, 22, 0.45) 40%,
    rgba(8, 13, 22, 0.75) 100%
  );
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-block: calc(var(--nav-height) + var(--space-xl)) var(--space-xl);
  text-align: center;
}

.hero-eyebrow {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-md);
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 11vw, 7.5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.hero-sub {
  font-size: clamp(0.95rem, 2.2vw, 1.15rem);
  color: var(--color-text-muted);
  max-width: 46ch;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-md);
}

.hero-promo {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.hero-promo strong {
  color: var(--color-gold);
  font-weight: 600;
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  opacity: 0.4;
}

.scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--color-gold));
  animation: scrollDrop 1.8s ease-in-out infinite;
}

.scroll-label {
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
}

@keyframes scrollDrop {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50%       { opacity: 0.8; transform: scaleY(1.2); }
}

/* ----------------------------------------------------------
   7. ABOUT
   ---------------------------------------------------------- */
.about {
  background-color: var(--color-bg-2);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.about-grid {
  display: grid;
  gap: var(--space-xl);
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  max-width: 54ch;
}

.about-text .section-title {
  margin-bottom: var(--space-md);
}

.about-text .btn {
  margin-top: var(--space-xs);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-md) var(--space-sm);
  background-color: var(--color-bg-3);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  gap: var(--space-xs);
}

.stat-number {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 700;
  color: var(--color-gold);
  line-height: 1;
}

.stat-label {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

/* ----------------------------------------------------------
   8. SERVICES PREVIEW
   ---------------------------------------------------------- */
.services-preview {
  background-color: var(--color-bg);
}

.services-grid {
  display: grid;
  gap: var(--space-md);
}

.service-card {
  position: relative;
  padding: var(--space-lg) var(--space-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--color-gold);
}

.service-card--featured {
  border-color: var(--color-gold);
  background: linear-gradient(145deg, var(--color-surface) 0%, rgba(201, 168, 76, 0.06) 100%);
}

.service-badge {
  position: absolute;
  top: -1px;
  right: var(--space-md);
  background-color: var(--color-gold);
  color: var(--color-bg);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3em 0.9em;
  border-radius: 0 0 3px 3px;
}

.service-icon {
  width: 44px;
  height: 44px;
  color: var(--color-gold);
  margin-bottom: var(--space-md);
}

.service-icon svg {
  width: 100%;
  height: 100%;
}

.service-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.service-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.service-list {
  list-style: none;
  margin-bottom: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.4em;
}

.service-list li {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  padding-left: 1.1em;
  position: relative;
}

.service-list li::before {
  content: '✦';
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-size: 0.55em;
  top: 0.3em;
}

.service-link {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  transition: letter-spacing var(--transition);
}

.service-link:hover {
  letter-spacing: 0.14em;
}

.services-cta {
  text-align: center;
  margin-top: var(--space-lg);
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ----------------------------------------------------------
   9. PROMO BANNER
   ---------------------------------------------------------- */
.promo-banner {
  background: linear-gradient(135deg, #1a2a1a 0%, #0d1a10 50%, #0d1520 100%);
  border-top: 1px solid rgba(201, 168, 76, 0.3);
  border-bottom: 1px solid rgba(201, 168, 76, 0.3);
  padding-block: var(--space-xl);
}

.promo-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-lg);
}

.promo-text h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.promo-text p {
  color: var(--color-text-muted);
  max-width: 50ch;
  margin-inline: auto;
}

@media (min-width: 768px) {
  .promo-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .promo-text p {
    margin-inline: 0;
  }
}

/* ----------------------------------------------------------
   10. GALLERY TEASER
   ---------------------------------------------------------- */
.gallery-teaser {
  background-color: var(--color-bg-2);
}

.teaser-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  border-radius: 4px;
  overflow: hidden;
}

.teaser-item {
  aspect-ratio: 1;
  overflow: hidden;
  background-color: var(--color-surface);
}

.teaser-item--wide {
  grid-column: span 2;
  aspect-ratio: 16/7;
}

.teaser-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.teaser-item:hover img {
  transform: scale(1.04);
}

@media (min-width: 768px) {
  .teaser-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .teaser-item {
    aspect-ratio: 1;
  }

  .teaser-item--wide {
    grid-column: span 2;
    aspect-ratio: 1;
  }
}

/* ----------------------------------------------------------
   11. FOOTER
   ---------------------------------------------------------- */
.site-footer {
  background-color: var(--color-bg-3);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  gap: var(--space-lg);
  padding-block: var(--space-xl) var(--space-lg);
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
  line-height: 1.6;
}

.footer-brand .logo {
  display: inline-flex;
}

.footer-heading {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.footer-nav ul,
.footer-contact ul {
  display: flex;
  flex-direction: column;
  gap: 0.5em;
}

.footer-nav a {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.footer-promo-note {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  margin-top: var(--space-sm);
  letter-spacing: 0.04em;
}

.footer-social {
  margin-top: var(--space-md);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.footer-social:hover {
  color: var(--color-gold);
}

.footer-social svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-md);
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  text-align: center;
  letter-spacing: 0.04em;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

/* ----------------------------------------------------------
   12. RESPONSIVE TWEAKS
   ---------------------------------------------------------- */
@media (min-width: 480px) {
  .container {
    padding-inline: 1.75rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-inline: 2.5rem;
  }

  .section-pad {
    padding-block: var(--space-2xl);
  }
}

/* ----------------------------------------------------------
   13. PAGE HERO (inner pages)
   ---------------------------------------------------------- */
.page-hero {
  background-color: var(--color-bg-3);
  border-bottom: 1px solid var(--color-border);
  padding-block: calc(var(--nav-height) + var(--space-xl)) var(--space-xl);
  text-align: center;
}

.page-hero-content .section-title {
  margin-top: var(--space-xs);
}

.page-hero-content .section-desc {
  margin-inline: auto;
  margin-top: var(--space-sm);
}

/* ----------------------------------------------------------
   14. GALLERY PAGE
   ---------------------------------------------------------- */
.gallery-section {
  background-color: var(--color-bg);
}

.ba-grid {
  display: grid;
  gap: var(--space-lg);
}

.ba-pair {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}

.ba-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
}

.ba-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background-color: var(--color-bg-3);
}

.ba-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.ba-item:hover img {
  transform: scale(1.04);
}

.ba-label {
  position: absolute;
  bottom: var(--space-sm);
  left: var(--space-sm);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.3em 0.8em;
  border-radius: 2px;
}

.ba-label--before {
  background-color: rgba(13, 21, 32, 0.85);
  color: var(--color-text-muted);
  border: 1px solid rgba(255,255,255,0.15);
}

.ba-label--after {
  background-color: var(--color-gold);
  color: var(--color-bg);
}

.ba-pair--wide .ba-item {
  aspect-ratio: 16/9;
}

.ba-images--triple {
  grid-template-columns: 1fr 1fr 1fr;
}

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

  .ba-pair--wide {
    grid-column: span 2;
  }
}

.gallery-cta {
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.gallery-cta p {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

/* ----------------------------------------------------------
   15. ACCESSIBILITY
   ---------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}