/* ==========================================================================
   Kennia Marangon — Design System
   ==========================================================================
   1. Custom Properties (Design Tokens)
   2. Reset / Base Styles
   3. Typography
   4. Layout Utilities (Grid, Container)
   5. Component Styles
   6. Page-Specific Styles
   7. Media Queries (768px)
   8. Media Queries (1200px)
   9. Accessibility (focus, reduced-motion)
   ========================================================================== */

/* ==========================================================================
   1. Custom Properties (Design Tokens)
   ========================================================================== */

:root {
  /* Colors */
  --bg-primary: #FAFAF8;
  --bg-card: #FFFFFF;
  --bg-section: #F2EDE6;
  --text-primary: #1A1A1A;
  --text-secondary: #6B6460;
  --color-linho: #C9B99A;
  --color-terra: #8B7355;
  --color-accent: #5C4A32;
  --cta-bg: #2C2C2C;
  --cta-text: #FFFFFF;
  --whatsapp-green: #25D366;

  /* Typography */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;
  --fs-h1: clamp(2rem, 5vw, 3.5rem);
  --fs-h2: clamp(1.5rem, 3vw, 2.5rem);
  --fs-h3: clamp(1.25rem, 2.5vw, 1.75rem);
  --fs-body: clamp(0.875rem, 1.5vw, 1rem);
  --fs-small: 0.875rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;

  /* Layout */
  --max-width-tablet: 960px;
  --max-width-desktop: 1280px;
  --border-radius: 8px;
  --border-radius-pill: 999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
}

/* ==========================================================================
   2. Reset / Base Styles
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul,
ol {
  list-style: none;
}

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

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea,
select {
  font: inherit;
}

/* ==========================================================================
   3. Typography
   ========================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  line-height: 1.2;
  font-weight: 700;
}

h1 {
  font-size: var(--fs-h1);
}

h2 {
  font-size: var(--fs-h2);
}

h3 {
  font-size: var(--fs-h3);
}

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   4. Layout Utilities (Grid, Container)
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--max-width-desktop);
  margin-inline: auto;
  padding-inline: var(--space-sm);
}

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

/* Mobile: 1 column */
.grid--products {
  grid-template-columns: 1fr;
}

/* ==========================================================================
   5. Component Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   5.1 Top Bar
   -------------------------------------------------------------------------- */

.top-bar {
  width: 100%;
  height: 40px;
  background-color: var(--cta-bg);
  color: var(--cta-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-small);
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-inline: var(--space-sm);
}

/* --------------------------------------------------------------------------
   5.2 Navbar
   -------------------------------------------------------------------------- */

.navbar {
  width: 100%;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--color-linho);
  position: sticky;
  top: 0;
  z-index: 900;
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.navbar__brand {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--text-primary);
  flex-shrink: 0;
}

.navbar__nav {
  display: none;
}

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

.navbar__link {
  font-size: var(--fs-body);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

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

.navbar__link--active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-accent);
}

.navbar__whatsapp {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--whatsapp-green);
  flex-shrink: 0;
}

.navbar__whatsapp svg {
  width: 24px;
  height: 24px;
}

.navbar__hamburger {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.navbar__hamburger svg {
  width: 24px;
  height: 24px;
}

/* Navbar Mobile Menu Overlay */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  top: 104px; /* top-bar (40px) + navbar (64px) */
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-primary);
  z-index: 899;
  padding: var(--space-lg);
  overflow-y: auto;
}

.navbar__mobile-menu[hidden] {
  display: none;
}

.navbar__mobile-menu.is-open {
  display: block;
}

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

.navbar__mobile-links a {
  font-size: var(--fs-h3);
  font-family: var(--font-heading);
  color: var(--text-primary);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--bg-section);
}

.navbar__mobile-links a:hover,
.navbar__mobile-links a.navbar__link--active {
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   5.3 Footer
   -------------------------------------------------------------------------- */

.footer {
  background-color: var(--cta-bg);
  color: var(--cta-text);
  padding-block: var(--space-2xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.footer__col h3 {
  font-size: var(--fs-h3);
  color: var(--cta-text);
  margin-bottom: var(--space-sm);
}

.footer__col p,
.footer__col a {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--fs-body);
  line-height: 1.7;
}

.footer__col a:hover {
  color: var(--cta-text);
}

.footer__col--nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

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

.footer__newsletter-form label {
  font-size: var(--fs-small);
  color: rgba(255, 255, 255, 0.7);
}

.footer__newsletter-form input {
  padding: var(--space-sm);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius);
  background-color: transparent;
  color: var(--cta-text);
  font-size: var(--fs-body);
}

.footer__newsletter-form input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.footer__newsletter-form button {
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-linho);
  color: var(--text-primary);
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: background-color var(--transition-fast);
}

.footer__newsletter-form button:hover {
  background-color: var(--color-terra);
  color: var(--cta-text);
}

.footer__bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
}

.footer__bottom p {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--fs-small);
}

/* --------------------------------------------------------------------------
   5.4 Product Card
   -------------------------------------------------------------------------- */

.product-card {
  background-color: var(--bg-card);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.product-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.product-card__image-wrapper {
  aspect-ratio: 2 / 3;
  overflow: hidden;
  background-color: var(--bg-card);
  padding: 16px;
}

.product-card__image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--border-radius);
}

.product-card__info {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.product-card__name {
  font-family: var(--font-heading);
  font-size: var(--fs-body);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-primary);
}

.product-card__sizes {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.product-card__size-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 32px;
  padding-inline: var(--space-sm);
  border: 1px solid var(--color-linho);
  border-radius: var(--border-radius-pill);
  font-size: var(--fs-small);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.product-card__size-pill:hover,
.product-card__size-pill.is-active {
  background-color: var(--cta-bg);
  color: var(--cta-text);
  border-color: var(--cta-bg);
}

.product-card__price {
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--text-primary);
}

.product-card__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--whatsapp-green);
  color: var(--cta-text);
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: var(--fs-body);
  transition: background-color var(--transition-fast);
  min-height: 44px;
}

.product-card__cta:hover {
  background-color: #1da851;
}

/* --------------------------------------------------------------------------
   5.5 Timeline
   -------------------------------------------------------------------------- */

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

.timeline__track {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  position: relative;
}

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

.timeline__number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--cta-text);
  border-radius: 50%;
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: 700;
  flex-shrink: 0;
}

.timeline__title {
  font-size: var(--fs-h3);
  color: var(--text-primary);
}

.timeline__desc {
  font-size: var(--fs-body);
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   5.6 Floating WhatsApp Button
   -------------------------------------------------------------------------- */

.floating-whatsapp {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background-color: var(--whatsapp-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: bottom var(--transition-base), transform var(--transition-fast);
}

.floating-whatsapp:hover {
  transform: scale(1.1);
}

.floating-whatsapp svg {
  width: 28px;
  height: 28px;
  fill: #FFFFFF;
}

/* When chat widget is active, reposition */
.floating-whatsapp--repositioned {
  bottom: 80px;
}

/* --------------------------------------------------------------------------
   5.7 Chat Widget Placeholder
   -------------------------------------------------------------------------- */

.chat-widget-placeholder {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: none;
  z-index: 999;
}

.chat-widget-placeholder.is-active {
  display: block;
}

/* --------------------------------------------------------------------------
   5.8 Hero Section
   -------------------------------------------------------------------------- */

.hero {
  width: 100%;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-2xl) var(--space-sm);
  background-color: var(--bg-section);
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.3);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero__title {
  font-size: var(--fs-h1);
  color: var(--cta-text);
  margin-bottom: var(--space-sm);
}

.hero__subtitle {
  font-size: var(--fs-h3);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-lg);
  font-family: var(--font-body);
  font-weight: 400;
}

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

.hero__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: var(--fs-body);
  min-height: 48px;
  min-width: 200px;
  transition: all var(--transition-fast);
}

.hero__cta--primary {
  background-color: var(--cta-bg);
  color: var(--cta-text);
}

.hero__cta--primary:hover {
  background-color: var(--color-accent);
}

.hero__cta--whatsapp {
  background-color: var(--whatsapp-green);
  color: var(--cta-text);
}

.hero__cta--whatsapp:hover {
  background-color: #1da851;
}

/* --------------------------------------------------------------------------
   5.9 Filter Controls
   -------------------------------------------------------------------------- */

.filter-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-block: var(--space-lg);
  justify-content: center;
}

.filter-controls__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--color-linho);
  border-radius: var(--border-radius-pill);
  font-size: var(--fs-small);
  color: var(--text-secondary);
  background-color: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 40px;
}

.filter-controls__btn:hover {
  border-color: var(--cta-bg);
  color: var(--text-primary);
}

.filter-controls__btn.is-active {
  background-color: var(--cta-bg);
  color: var(--cta-text);
  border-color: var(--cta-bg);
}

/* --------------------------------------------------------------------------
   5.10 Gallery Grid
   -------------------------------------------------------------------------- */

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

.gallery-grid__item {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--border-radius);
}

.gallery-grid__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.gallery-grid__item:hover img {
  transform: scale(1.05);
}

/* --------------------------------------------------------------------------
   5.11 Map Container
   -------------------------------------------------------------------------- */

.map-container {
  width: 100%;
  min-height: 300px;
  border-radius: var(--border-radius);
  overflow: hidden;
  background-color: var(--bg-section);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  min-height: 300px;
  border: 0;
}

.map-container__fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  padding: var(--space-lg);
  text-align: center;
  color: var(--text-secondary);
}

/* ==========================================================================
   6. Page-Specific Styles
   ========================================================================== */

/* Collection page footer message */
.colecao__footer-message {
  text-align: center;
  margin-top: var(--space-xl);
  color: var(--text-secondary);
  font-size: var(--fs-body);
  font-style: italic;
}

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

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

.section__title {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
  text-align: center;
}

.section__subtitle {
  text-align: center;
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
}

/* ==========================================================================
   7. Media Queries (768px)
   ========================================================================== */

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-lg);
  }

  .grid--products {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Navbar: show desktop nav, hide hamburger */
  .navbar__nav {
    display: flex;
  }

  .navbar__hamburger {
    display: none;
  }

  /* Footer: 2-column grid on tablet */
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Hero: horizontal actions */
  .hero__actions {
    flex-direction: row;
    justify-content: center;
  }

  /* Gallery: 2-column grid */
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Map: taller on tablet+ */
  .map-container {
    min-height: 400px;
  }

  .map-container iframe {
    min-height: 400px;
  }

  .map-container__fallback {
    min-height: 400px;
  }
}

/* ==========================================================================
   8. Media Queries (1200px)
   ========================================================================== */

@media (min-width: 1200px) {
  .grid--products {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }

  /* Footer: 4 equal columns on desktop */
  .footer__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Timeline: horizontal layout */
  .timeline__track {
    flex-direction: row;
  }

  .timeline__step {
    flex: 1;
  }

  /* Gallery: 3-4 column grid */
  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

/* ==========================================================================
   9. Accessibility (focus, reduced-motion)
   ========================================================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}