/* ===================================
   ALPENIX Global Stylesheet
   VERSION: 1.0 | UPDATED: 2025-08-17
   =================================== */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Colors */
  --color-bg-primary: #0A0A0A;
  --color-bg-secondary: #111111;
  --color-bg-tertiary: #1A1A1A;
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #B0B0B0;
  --color-text-muted: #666666;
  --color-border: #2A2A2A;
  
  /* Brand Colors */
  --color-gold: #C8A456;
  --color-red: #D42828;
  --color-green: #00B589;
  --color-blue: #00A9E0;
  --color-swiss-red: #D42828;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;
  --space-12: 6rem;
  
  /* Layout */
  --container-max: 1400px;
  --header-height: 80px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
}

@media (min-width: 1200px) {
  .container {
    padding: 0 var(--space-12);
  }
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1rem, 2vw, 1.25rem); }
p { font-size: clamp(0.875rem, 1.5vw, 1rem); color: var(--color-text-secondary); }

/* --- Grid System --- */
.grid {
  display: grid;
  gap: var(--space-5);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.grid--5 { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

@media (min-width: 768px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 2px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
}

.btn svg {
  width: 16px;
  height: 16px;
}

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

.btn--gold:hover {
  background: var(--color-gold);
  color: var(--color-bg-primary);
}

.btn--red {
  background: transparent;
  border-color: var(--color-red);
  color: var(--color-red);
}

.btn--red:hover {
  background: var(--color-red);
  color: var(--color-text-primary);
}

.btn--green {
  background: transparent;
  border-color: var(--color-green);
  color: var(--color-green);
}

.btn--green:hover {
  background: var(--color-green);
  color: var(--color-bg-primary);
}

.btn--blue {
  background: transparent;
  border-color: var(--color-blue);
  color: var(--color-blue);
}

.btn--blue:hover {
  background: var(--color-blue);
  color: var(--color-bg-primary);
}

.btn--solid-gold {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-bg-primary);
}

.btn--solid-gold:hover {
  background: transparent;
  color: var(--color-gold);
}

/* --- Header (H1 Pattern) --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-5);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.brand-icon {
  width: 48px;
  height: auto;
}

.brand-sub {
  display: block;
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--color-text-secondary);
}

.header-cta {
  display: none;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-gold);
  border-radius: 6px;
}

.header-cta-badge {
  color: var(--color-swiss-red);
  font-weight: 700;
}

.header-cta-desktop {
  display: flex;
}

/* --- Navigation --- */
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-5);
  gap: var(--space-2);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.nav-list.is-open {
  max-height: 600px;
}

@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }
  
  .nav-list {
    position: static;
    flex-direction: row;
    background: transparent;
    border: none;
    padding: 0;
    max-height: none;
    overflow: visible;
    gap: var(--space-6);
  }
}

.nav-item > a {
  display: block;
  padding: var(--space-2) 0;
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (min-width: 1024px) {
  .nav-item > a {
    padding: var(--space-3) var(--space-2);
  }
}

.nav-item > a[aria-current="page"] {
  color: var(--color-gold);
}

.nav-item > a[aria-current="page"]::after {
  content: '';
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-gold);
  margin-top: var(--space-2);
}

/* Language dropdown */
.nav-lang {
  display: flex;
  align-items: center;
}

.lang-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-3);
  border: none;
  border-radius: 6px;
  transition: color var(--transition-fast);
}

.lang-trigger:hover {
  color: var(--color-gold);
}

.lang-menu {
  min-width: 140px;
}

.lang-menu .lang-link {
  display: block;
  padding: var(--space-2) var(--space-5);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border: none;
  border-radius: 0;
}

.lang-menu .lang-link:hover {
  color: var(--color-gold);
  background: rgba(200, 164, 86, 0.08);
}

.lang-menu .lang-link.is-active {
  color: var(--color-gold);
  font-weight: 600;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.dropdown-menu {
  list-style: none;
}

@media (min-width: 1024px) {
  .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--space-3) 0;
    min-width: 280px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
  }
  
  .nav-dropdown:hover .dropdown-menu,
  .nav-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  .dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-5) !important;
  }
}

.lang-menu {
  min-width: 140px;
}

.dropdown-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 63vh;
  display: flex;
  align-items: center;
  padding: var(--space-12) 0;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0A0A0A 0%, #1a1a2e 50%, #0A0A0A 100%);
  z-index: 1;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 900"><defs><linearGradient id="g" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" style="stop-color:%231a1a2e;stop-opacity:0.3"/><stop offset="100%" style="stop-color:%230A0A0A;stop-opacity:0.8"/></linearGradient></defs><polygon fill="url(%23g)" points="0,900 400,300 800,600 1200,200 1440,500 1440,900"/></svg>') center/cover;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-5);
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
}

@media (min-width: 1024px) {
  .hero-image {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    display: flex;
    gap: var(--space-5);
  }
}

/* --- Section Base --- */
.section {
  padding: var(--space-12) 0;
}

.section--lg {
  padding: var(--space-12) 0;
}

/* --- Trust Bar --- */
.trust-bar {
  padding: var(--space-8) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-5);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.trust-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-text-muted);
  border-radius: 50%;
  flex-shrink: 0;
}

.trust-icon svg {
  width: 24px;
  height: 24px;
}

.trust-icon--shield {
  border-color: var(--color-gold);
}

.trust-text h4 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: 1.4;
}

/* --- Category Cards --- */
.category-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.category-card > div:nth-child(2) {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.category-card .btn {
  margin-top: auto;
}

@media (min-width: 1024px) {
  .category-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-gold);
  }
}

/* --- Product Card --- */
.product-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--space-5);
  transition: all var(--transition-normal);
}

.product-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-4px);
}

.product-card__image {
  width: 100%;
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, #222, #111);
  border-radius: 8px;
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-card__name {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.product-card__type {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.product-card__description {
  font-size: 0.875rem;
  margin-bottom: var(--space-4);
}

.product-card__options {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.dose-option {
  padding: var(--space-2) var(--space-3);
  font-size: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dose-option:hover,
.dose-option--active {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* --- Accordion --- */
.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) 0;
  cursor: pointer;
  width: 100%;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
}

.accordion-header svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-normal);
}

.accordion-item.is-open .accordion-header svg {
  transform: rotate(45deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.accordion-item.is-open .accordion-content {
  max-height: 500px;
}

.accordion-content p {
  padding-bottom: var(--space-5);
}

/* --- Form --- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-gold);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-10) 0 var(--space-6);
}

.footer-main {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

@media (min-width: 768px) {
  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-main {
    grid-template-columns: 2fr repeat(3, 1fr);
  }
}

.footer-nav h4 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.footer-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-nav li a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

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

.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .footer-bottom-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-tagline {
  text-align: center;
}

@media (min-width: 768px) {
  .footer-tagline {
    text-align: left;
    display: flex;
    align-items: center;
    gap: var(--space-5);
  }
}

.footer-tagline strong {
  color: var(--color-gold);
}

/* --- Page Header (Breadcrumbs) --- */
.page-header {
  padding: var(--space-10) 0 var(--space-8);
  position: relative;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}

.breadcrumbs a {
  color: var(--color-text-secondary);
}

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

.breadcrumbs span {
  color: var(--color-text-muted);
}

/* --- Responsive Utilities --- */
@media (max-width: 1023px) {
  .hero-image {
    display: none !important;
  }
}