/* ==========================================================================
   TENIN WATCHES — Brand Stylesheet
   Colors from Tenin Brand Guidelines 2013
   ========================================================================== */

/* --- Fonts --- */
/* Aviano Flare (primary) → self-host if you have it, fallback to Montserrat */
/* Gotham (secondary)     → self-host if you have it, fallback to Montserrat */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600&display=swap');

:root {
  /* Brand Colors */
  --tenin-blue:    #3F5468;
  --tenin-blue-90: rgba(63, 84, 104, 0.9);
  --tenin-blue-50: rgba(63, 84, 104, 0.5);
  --tenin-blue-20: rgba(63, 84, 104, 0.2);
  --leather:       #BA7D4A;
  --leather-light: #d4a373;
  --slate:         #525252;
  --grey-warm:     #f5f3f0;
  --grey-light:    #e8e6e3;
  --white:         #fafaf9;
  --black:         #2a2a2a;

  /* Typography */
  --font-primary:   'Montserrat', 'Gotham', 'Aviano Flare', sans-serif;
  --font-body:      'Montserrat', 'Gotham', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 5rem;

  /* Layout */
  --max-width: 1280px;
  --header-height: 80px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--slate);
  background: var(--white);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--tenin-blue); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--leather); }

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-primary);
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--tenin-blue);
}

h1 { font-size: 1.8rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1rem; }

/* --- Header --- */
.site-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  border-bottom: 1px solid var(--grey-light);
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .logo {
  height: 50px;
  width: auto;
  color: var(--tenin-blue);
}

.site-header .logo:hover { opacity: 0.8; }

.site-nav {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
  list-style: none;
}

.site-nav a {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate);
  padding: var(--space-xs) 0;
  border-bottom: 1.5px solid transparent;
  transition: all 0.2s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--tenin-blue);
  border-bottom-color: var(--tenin-blue);
}

/* Mobile nav toggle */
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: var(--space-sm); }
.nav-toggle span { display: block; width: 22px; height: 1.5px; background: var(--slate); margin: 5px 0; transition: 0.2s; }

/* --- Hero / Page Header --- */
.page-hero {
  background: var(--tenin-blue);
  color: var(--white);
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
}

.page-hero h1 {
  color: var(--white);
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.page-hero p {
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  opacity: 0.8;
  max-width: 500px;
  margin: 0 auto;
}

/* --- Filters Bar --- */
.filters-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--grey-light);
  background: var(--grey-warm);
  flex-wrap: wrap;
}

.filters-bar label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
}

.filters-bar select {
  font-family: var(--font-body);
  font-size: 0.8rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--grey-light);
  border-radius: 2px;
  background: var(--white);
  color: var(--slate);
  cursor: pointer;
  outline: none;
  appearance: auto;
}

.filters-bar select:focus {
  border-color: var(--tenin-blue);
}

.watch-count {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--tenin-blue-50);
  letter-spacing: 0.05em;
}

/* --- Watch Grid --- */
.watch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
  padding: var(--space-xl) var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

/* --- Watch Card --- */
.watch-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--grey-light);
  transition: box-shadow 0.3s ease, transform 0.2s ease;
  cursor: pointer;
  overflow: hidden;
}

.watch-card:hover {
  box-shadow: 0 8px 30px rgba(63, 84, 104, 0.12);
  transform: translateY(-2px);
}

.watch-card a { color: inherit; text-decoration: none; display: block; }

.watch-card .card-image {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--grey-warm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.watch-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.watch-card:hover .card-image img {
  transform: scale(1.03);
}

.watch-card .card-image .no-image {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tenin-blue-50);
}

.watch-card .card-body {
  padding: var(--space-md) var(--space-md) var(--space-lg);
}

.watch-card .card-brand {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--tenin-blue-50);
  margin-bottom: 2px;
}

.watch-card .card-model {
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--tenin-blue);
  margin-bottom: var(--space-xs);
}

.watch-card .card-tagline {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--slate);
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.watch-card .card-price {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--tenin-blue);
  letter-spacing: 0.02em;
}

.watch-card .card-size {
  font-size: 0.72rem;
  color: var(--tenin-blue-50);
  margin-top: 2px;
}

/* --- Flags / Badges --- */
.flag {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 4px 10px;
  z-index: 2;
}

.flag-sold      { background: var(--slate); color: var(--white); }
.flag-reserved  { background: var(--leather); color: var(--white); }
.flag-new       { background: var(--tenin-blue); color: var(--white); }
.flag-featured  { background: var(--leather); color: var(--white); }
.flag-tenin     { background: var(--tenin-blue); color: var(--white); }

/* Sold card: desaturated look */
.watch-card-sold .card-image img {
  filter: grayscale(40%) opacity(0.75);
  transition: filter 0.3s ease, transform 0.4s ease;
}

.watch-card-sold:hover .card-image img {
  filter: grayscale(0%) opacity(1);
}

.card-price-sold {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--tenin-blue-50);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* --- Watch Detail Page --- */
.watch-detail {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

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

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

.watch-gallery .main-image {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--grey-warm);
  border: 1px solid var(--grey-light);
  position: relative;
  cursor: zoom-in;
}

.watch-gallery .main-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.zoom-hint {
  position: absolute;
  bottom: var(--space-sm);
  right: var(--space-sm);
  background: rgba(42, 42, 42, 0.72);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 0.6rem;
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.watch-gallery .main-image:hover .zoom-hint { opacity: 1; }

/* --- Lightbox --- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(20, 20, 20, 0.94);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.lightbox.open { display: flex; }

.lightbox-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-family: var(--font-primary);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.35);
}

.lightbox-close {
  top: var(--space-md);
  right: var(--space-md);
  width: 44px;
  height: 44px;
  font-size: 1.6rem;
  font-weight: 300;
}

.lightbox-prev,
.lightbox-next {
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  font-size: 2rem;
  font-weight: 300;
}

.lightbox-prev { left: var(--space-md); }
.lightbox-next { right: var(--space-md); }

.lightbox-counter {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  color: var(--white);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.7;
}

@media (max-width: 768px) {
  .lightbox-close { width: 38px; height: 38px; font-size: 1.4rem; }
  .lightbox-prev,
  .lightbox-next { width: 42px; height: 42px; font-size: 1.6rem; }
  .lightbox-prev { left: var(--space-sm); }
  .lightbox-next { right: var(--space-sm); }
}

.watch-gallery .thumbs {
  display: flex;
  gap: var(--space-sm);
  overflow-x: auto;
}

.watch-gallery .thumbs img {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border: 1px solid var(--grey-light);
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.watch-gallery .thumbs img:hover,
.watch-gallery .thumbs img.active {
  opacity: 1;
  border-color: var(--tenin-blue);
}

/* Detail info */
.watch-info .detail-brand {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--tenin-blue-50);
  margin-bottom: 4px;
}

.watch-info .detail-model {
  font-size: 1.6rem;
  color: var(--tenin-blue);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.06em;
}

.watch-info .detail-tagline {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--slate);
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

.watch-info .detail-description {
  font-size: 0.88rem;
  color: var(--slate);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

/* Specs table */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-lg);
}

.specs-table tr { border-bottom: 1px solid var(--grey-light); }

.specs-table td {
  padding: 0.6rem 0;
  font-size: 0.82rem;
}

.specs-table td:first-child {
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.7rem;
  color: var(--tenin-blue-50);
  width: 40%;
}

/* --- Buy Options --- */
.buy-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--grey-light);
}

.buy-options h3 {
  font-size: 0.72rem;
  color: var(--slate);
  margin-bottom: var(--space-xs);
}

.buy-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-md);
  border: 1px solid var(--grey-light);
  transition: all 0.2s ease;
  gap: var(--space-md);
}

.buy-option:hover {
  border-color: var(--tenin-blue);
  background: rgba(63, 84, 104, 0.02);
}

.buy-option .option-info { flex: 1; }

.buy-option .option-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--tenin-blue);
  margin-bottom: 2px;
}

.buy-option .option-desc {
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--slate);
}

.buy-option .option-price {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--tenin-blue);
  white-space: nowrap;
}

.buy-option .option-savings {
  font-size: 0.68rem;
  color: var(--leather);
  font-weight: 500;
}

.buy-btn {
  display: inline-block;
  font-family: var(--font-primary);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.7rem 1.5rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
}

.buy-btn-primary {
  background: var(--tenin-blue);
  color: var(--white);
}

.buy-btn-primary:hover {
  background: var(--slate);
  color: var(--white);
}

.buy-btn-outline {
  background: transparent;
  color: var(--tenin-blue);
  border: 1px solid var(--tenin-blue);
}

.buy-btn-outline:hover {
  background: var(--tenin-blue);
  color: var(--white);
}

.buy-btn-ebay {
  background: var(--leather);
  color: var(--white);
}

.buy-btn-ebay:hover {
  background: #a06a3a;
  color: var(--white);
}

/* --- Back link --- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tenin-blue-50);
  margin-bottom: var(--space-lg);
  transition: color 0.2s;
}

.back-link:hover { color: var(--tenin-blue); }

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  color: var(--tenin-blue-50);
}

.empty-state p {
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

/* --- Footer --- */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--grey-light);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  background: var(--grey-warm);
}

.site-footer .footer-logo {
  height: 36px;
  color: var(--tenin-blue-50);
  margin: 0 auto var(--space-md);
}

.site-footer p {
  font-size: 0.72rem;
  color: var(--tenin-blue-50);
  letter-spacing: 0.08em;
}

.site-footer a { color: var(--tenin-blue-50); }
.site-footer a:hover { color: var(--tenin-blue); }

/* --- About Page --- */
.about-content {
  max-width: 680px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}

.about-content p {
  font-size: 0.92rem;
  line-height: 1.8;
  margin-bottom: var(--space-lg);
  color: var(--slate);
}

/* --- FAQ Page --- */
.faq-content {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}

.faq-item {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--grey-light);
}

.faq-item:first-of-type {
  border-top: 1px solid var(--grey-light);
}

.faq-item:last-of-type {
  border-bottom: none;
}

.faq-question {
  font-family: var(--font-primary);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--tenin-blue);
  margin-bottom: var(--space-md);
  line-height: 1.4;
  letter-spacing: normal;
  text-transform: none;
}

.faq-answer p {
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--slate);
  margin-bottom: var(--space-md);
}

.faq-answer p:last-child { margin-bottom: 0; }

.faq-footer {
  margin-top: var(--space-2xl);
  font-size: 0.88rem;
  color: var(--slate);
  text-align: center;
  font-style: italic;
}

.faq-empty {
  font-size: 0.92rem;
  color: var(--slate);
  text-align: center;
  padding: var(--space-lg) 0;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .site-nav { 
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--grey-light);
    gap: var(--space-md);
  }

  .site-nav.open { display: flex; }
  /* Push hamburger to the far right. The `<nav>` wrapper is a zero-width
     flex item once `.site-nav` is hidden, so `space-between` would otherwise
     leave the toggle stranded in the middle of the header. */
  .nav-toggle { display: block; margin-left: auto; }

  .watch-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-md);
  }

  .watch-detail-grid {
    grid-template-columns: 1fr;
  }

  .filters-bar {
    padding: var(--space-sm) var(--space-md);
    gap: var(--space-sm);
  }

  .buy-option {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }

  .page-hero { padding: var(--space-xl) var(--space-md); }
}

@media (max-width: 480px) {
  .watch-grid {
    grid-template-columns: 1fr;
  }
}