/* ============================================================
   Santa Cruz Watch Co. — styles.css
   Mobile-first. CSS custom properties. No frameworks.
   ============================================================ */

/* === 0. SELF-HOSTED FONTS ================================= */
@font-face {
  font-family: 'Lora';
  src: url('../fonts/Lora-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Lora';
  src: url('../fonts/Lora-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Lora';
  src: url('../fonts/Lora-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Outfit';
  src: url('../fonts/Outfit-VariableFont_wght.ttf') format('truetype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* === 1. CUSTOM PROPERTIES ================================= */
:root {
  /* Colors */
  --color-navy:       #162536;
  --color-navy-dark:  #0d1a26;
  --color-navy-mid:   #1e3347;
  --color-gold:       #D8CA93;
  --color-gold-dark:  #B8A472;
  --color-bone:       #F9F2E4;
  --color-bone-dark:  #EDE6D4;
  --color-white:      #ffffff;
  --color-text:       #1a1a1a;
  --color-muted:      #6b6b6b;
  --color-whatsapp:   #25d366;
  --color-whatsapp-hover: #1ebe5d;

  /* Typography */
  --font-heading: 'Lora', Georgia, serif;
  --font-body:    'Outfit', system-ui, -apple-system, sans-serif;

  /* Type scale */
  --text-xs:   0.75rem;    /* 12px */
  --text-sm:   0.875rem;   /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg:   1.125rem;   /* 18px */
  --text-xl:   1.25rem;    /* 20px */
  --text-2xl:  1.5rem;     /* 24px */
  --text-3xl:  2rem;       /* 32px */
  --text-4xl:  2.5rem;     /* 40px */
  --text-5xl:  3.5rem;     /* 56px */

  /* Spacing (4px base) */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;

  /* Layout */
  --nav-height:     90px;
  --container-max:  1280px;
  --container-px:   1.5rem;

  /* Effects */
  --radius-sm:    4px;
  --radius-md:    10px;
  --radius-full:  9999px;
  --shadow-card:  0 2px 16px rgba(22, 37, 54, 0.08);
  --shadow-hover: 0 10px 36px rgba(22, 37, 54, 0.16);
  --transition:   0.25s ease;
  --transition-md: 0.4s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bone);
  color: var(--color-text);
  line-height: 1.65;
  font-size: var(--text-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

/* === 3. UTILITIES ========================================= */

/* Layout container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

/* Shared eyebrow label */
.eyebrow {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  margin-bottom: var(--sp-3);
}

.eyebrow--light {
  color: var(--color-gold);
}

/* Scroll animation */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-md), transform var(--transition-md);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delays for grid children */
.product-grid .reveal:nth-child(2) { transition-delay: 0.06s; }
.product-grid .reveal:nth-child(3) { transition-delay: 0.12s; }
.product-grid .reveal:nth-child(4) { transition-delay: 0.18s; }
.product-grid .reveal:nth-child(5) { transition-delay: 0.24s; }
.product-grid .reveal:nth-child(6) { transition-delay: 0.30s; }
.product-grid .reveal:nth-child(7) { transition-delay: 0.36s; }
.product-grid .reveal:nth-child(8) { transition-delay: 0.42s; }

/* Focus ring */
:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* === 4. BUTTONS =========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background-color var(--transition),
    color var(--transition),
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

/* Gold fill — primary CTA */
.btn--primary {
  background-color: var(--color-gold);
  color: var(--color-navy);
  border-color: var(--color-gold);
}

.btn--primary:hover {
  background-color: var(--color-gold-dark);
  border-color: var(--color-gold-dark);
  box-shadow: 0 4px 16px rgba(184, 164, 114, 0.4);
}

/* Navy outline — secondary CTA */
.btn--outline {
  background-color: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.btn--outline:hover {
  background-color: var(--color-navy);
  color: var(--color-bone);
}

/* Gold outline — for dark cards */
.btn--outline-gold {
  background-color: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}

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

/* Size modifier */
.btn--sm {
  padding: var(--sp-2) var(--sp-4);
  font-size: var(--text-xs);
}

/* WhatsApp */
.btn--whatsapp {
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  border-color: var(--color-whatsapp);
  padding: var(--sp-4) var(--sp-8);
  font-size: var(--text-base);
  border-radius: var(--radius-full);
}

.btn--whatsapp:hover {
  background-color: var(--color-whatsapp-hover);
  border-color: var(--color-whatsapp-hover);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
}

.btn__icon {
  flex-shrink: 0;
}

/* === 5. SECTION HEADER ==================================== */
.section-header {
  text-align: center;
  margin-bottom: var(--sp-12);
}

.section-header__title {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-3xl));
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1.2;
  margin-bottom: var(--sp-4);
}

.section-header__subtitle {
  font-size: var(--text-lg);
  color: var(--color-muted);
  max-width: 520px;
  margin-inline: auto;
  line-height: 1.7;
}

/* === 6. SITE HEADER / NAV ================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-navy);
  border-bottom: 1px solid rgba(216, 202, 147, 0.12);
  height: var(--nav-height);
  overflow: hidden;
}

.nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  gap: var(--sp-6);
}

.nav__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav__logo-img {
  height: 80px;
  width: auto;
  object-fit: contain;
}

/* Hamburger button — visible only on mobile */
.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-1);
  flex-shrink: 0;
}

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

/* Hamburger → X when open */
.nav--open .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav--open .nav__toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav--open .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav dropdown */
.nav__menu {
  display: none;
  position: absolute;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background-color: var(--color-navy);
  border-bottom: 1px solid rgba(216, 202, 147, 0.12);
  padding: var(--sp-2) var(--sp-6) var(--sp-6);
  flex-direction: column;
  gap: var(--sp-1);
}

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

.nav__link {
  display: block;
  padding: var(--sp-3) var(--sp-2);
  font-size: var(--text-base);
  font-weight: 400;
  color: rgba(249, 242, 228, 0.85);
  transition: color var(--transition);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-gold);
}

.nav__link--cta {
  color: var(--color-gold);
  font-weight: 500;
}

/* Desktop nav */
@media (min-width: 640px) {
  .nav__toggle {
    display: none;
  }

  .nav__menu {
    display: flex !important;
    position: static;
    background: none;
    border: none;
    padding: 0;
    flex-direction: row;
    align-items: center;
    gap: var(--sp-2);
  }
}

/* === 7. HERO ============================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  overflow: hidden;
  background-color: var(--color-navy);
}

/* Deep gradient backdrop */
.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(30, 51, 71, 0.9) 0%, transparent 70%),
    linear-gradient(145deg, var(--color-navy-dark) 0%, var(--color-navy) 50%, var(--color-navy-mid) 100%);
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding: var(--sp-24) var(--container-px) var(--sp-16);
}

.hero__eyebrow {
  display: block;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--sp-5);
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-4xl), 8vw, var(--text-5xl));
  font-weight: 600;
  color: var(--color-bone);
  line-height: 1.12;
  margin-bottom: var(--sp-6);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: rgba(249, 242, 228, 0.7);
  line-height: 1.75;
  margin-bottom: var(--sp-8);
  max-width: 420px;
}

/* Faint watch silhouette on mobile */
.hero__image {
  position: absolute;
  right: -10%;
  bottom: 0;
  height: 80%;
  z-index: 1;
  opacity: 0.12;
  pointer-events: none;
}

.hero__image img {
  height: 100%;
  width: auto;
  object-fit: contain;
}

/* Desktop: two-column layout */
@media (min-width: 1024px) {
  .hero {
    grid-template-columns: 1fr 1fr;
  }

  .hero__content {
    padding-inline-start: max(var(--container-px), calc((100vw - var(--container-max)) / 2 + var(--container-px)));
    padding-block: var(--sp-24);
  }

  .hero__image {
    position: relative;
    right: auto;
    bottom: auto;
    height: auto;
    opacity: 1;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-right: var(--sp-16);
    padding-bottom: var(--sp-8);
  }

  .hero__image img {
    height: 82vh;
    max-height: 700px;
    filter: drop-shadow(0 40px 60px rgba(0, 0, 0, 0.5));
  }
}

/* === 8. COLLECTION ======================================== */
.collection {
  padding-block: var(--sp-24);
  background-color: var(--color-bone);
}

/* Brand group */
.brand-group {
  margin-bottom: var(--sp-16);
}

.brand-group:last-child {
  margin-bottom: 0;
}

.brand-group__heading {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background-color: var(--color-navy);
  padding: var(--sp-2) var(--sp-5);
  margin-bottom: var(--sp-8);
  display: inline-block;
  border-radius: var(--radius-sm, 4px);
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
}

@media (min-width: 480px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* === 9. PRODUCT CARD ====================================== */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-5px);
}

/* High-end variant */
.card--high-end {
  background: linear-gradient(160deg, #1d2f42 0%, var(--color-navy) 100%);
}

.card__image-link {
  display: block;
  overflow: hidden;
}

.card__image-wrapper {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: var(--color-bone-dark);
}

.card--high-end .card__image-wrapper {
  background-color: #0f1e2e;
}

.card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-md), opacity var(--transition);
}

.card:hover .card__image {
  transform: scale(1.05);
}

.card__body {
  padding: var(--sp-4) var(--sp-5) var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  flex: 1;
}

.card__tier {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
}

.card__tier--premium {
  color: var(--color-gold);
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1.3;
  margin-top: var(--sp-1);
}

.card--high-end .card__title {
  color: var(--color-bone);
}

.card__variant {
  font-size: var(--text-sm);
  color: var(--color-muted);
}

.card--high-end .card__variant {
  color: rgba(249, 242, 228, 0.55);
}

.card__price {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-navy);
  margin-top: var(--sp-2);
  margin-bottom: var(--sp-3);
}

.card--high-end .card__price {
  color: var(--color-gold);
}

/* === 10. ABOUT ============================================ */
.about {
  padding-block: var(--sp-24);
  background-color: var(--color-bone-dark);
}

.about__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-12);
  align-items: center;
}

@media (min-width: 1024px) {
  .about__layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-16);
  }
}

.about__title {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-3xl), 4vw, var(--text-4xl));
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1.2;
  margin-bottom: var(--sp-6);
}

.about__text {
  font-size: var(--text-lg);
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: var(--sp-4);
}

.about__visual {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}

.about__image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

/* === 11. CONTACT ========================================== */
.contact {
  padding-block: var(--sp-24);
  background-color: var(--color-navy);
  text-align: center;
}

.contact__inner {
  max-width: 560px;
  margin-inline: auto;
}

.contact__title {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-3xl), 4vw, var(--text-4xl));
  font-weight: 600;
  color: var(--color-bone);
  line-height: 1.2;
  margin-bottom: var(--sp-4);
}

.contact__subtitle {
  font-size: var(--text-lg);
  color: rgba(249, 242, 228, 0.65);
  line-height: 1.7;
  margin-bottom: var(--sp-8);
}

.contact__details {
  margin-top: var(--sp-8);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.contact__details p {
  font-size: var(--text-sm);
  color: rgba(249, 242, 228, 0.4);
  letter-spacing: 0.04em;
}

/* === 12. FOOTER =========================================== */
.site-footer {
  background-color: var(--color-navy-dark);
  padding-block: var(--sp-8);
  border-top: 1px solid rgba(216, 202, 147, 0.08);
}

.site-footer__layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-4);
  text-align: center;
}

@media (min-width: 640px) {
  .site-footer__layout {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.site-footer__logo {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.site-footer__nav {
  display: flex;
  gap: var(--sp-6);
}

.site-footer__nav a {
  font-size: var(--text-sm);
  color: rgba(249, 242, 228, 0.45);
  transition: color var(--transition);
}

.site-footer__nav a:hover {
  color: var(--color-gold);
}

.site-footer__copy {
  font-size: var(--text-xs);
  color: rgba(249, 242, 228, 0.28);
}