/* ============================================
   CSYH Global Styles — Helixal-inspired
   Deep ink blue + Industrial orange + Cream
   ============================================ */

/* === CSS Variables === */
:root {
  /* Primary colors */
  --color-dark: #0a0a0a;
  --color-navy: #0f3057;
  --color-orange: #ff7a1a;
  --color-orange-hover: #e66a10;
  --color-green: #119b73;

  /* Neutrals */
  --color-cream: #f5f0e8;
  --color-cream-light: #faf8f4;
  --color-white: #ffffff;
  --color-gray-100: #f4f4f4;
  --color-gray-200: #e8e8e8;
  --color-gray-400: #999999;
  --color-gray-600: #666666;
  --color-gray-800: #333333;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);

  /* Layout */
  --max-width: 1280px;
  --nav-height: 64px;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-800);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-orange);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: var(--color-orange-hover);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

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

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-sans);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 12px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 15px;
}

.btn-xl {
  padding: 18px 44px;
  font-size: 16px;
}

.btn-full {
  width: 100%;
}

/* Primary: Orange */
.btn-primary {
  background: var(--color-orange);
  color: var(--color-white);
  border-color: var(--color-orange);
}
.btn-primary:hover {
  background: var(--color-orange-hover);
  border-color: var(--color-orange-hover);
  color: var(--color-white);
}
.btn-primary:disabled {
  background: var(--color-gray-400);
  border-color: var(--color-gray-400);
  cursor: not-allowed;
}

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

/* Outline light (on dark bg) */
.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-white);
  color: var(--color-white);
}

/* Dark button */
.btn-dark {
  background: var(--color-dark);
  color: var(--color-white);
  border-color: var(--color-dark);
}
.btn-dark:hover {
  background: var(--color-gray-800);
  color: var(--color-white);
}

/* === Announcement Bar === */
.announcement-bar {
  background: var(--color-dark);
  color: var(--color-white);
  text-align: center;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--color-orange);
  overflow: hidden;
}
.announcement-bar span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.announcement-bar .sep {
  color: var(--color-orange);
  margin: 0 12px;
}

/* === Trust Badge Strip === */
.trust-strip {
  background: var(--color-cream-light);
  border-bottom: 1px solid var(--color-gray-200);
  padding: 12px 0;
}
.trust-strip-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray-600);
}
.trust-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--color-green);
  border-radius: 50%;
}

/* === Section Headers === */
.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}
.section-header h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 12px;
  letter-spacing: -0.03em;
}
.section-header p {
  font-size: 16px;
  color: var(--color-gray-600);
  max-width: 600px;
  margin: 0 auto;
}
.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: 12px;
}

/* === Utility === */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

::selection {
  background: var(--color-orange);
  color: var(--color-white);
}

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

/* === Side Floating Buttons (Helixal style) === */
.side-float {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.side-float-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  text-decoration: none;
  transition: width 0.2s;
  position: relative;
}
.side-float-btn:hover {
  width: 140px;
}
.side-float-btn .side-label {
  position: absolute;
  right: 52px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s;
}
.side-float-btn:hover .side-label {
  opacity: 1;
}
.side-float-btn.shop-btn {
  background: var(--color-orange);
  color: var(--color-white);
}
.side-float-btn.whatsapp-btn {
  background: #25d366;
  color: var(--color-white);
}

/* === Responsive === */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }
  .section-header h2 {
    font-size: 28px;
  }
  .announcement-bar {
    font-size: 11px;
    padding: 8px 12px;
  }
  .trust-strip-inner {
    gap: 12px;
  }
  .trust-badge {
    font-size: 10px;
  }
  .side-float-btn {
    width: 44px;
    height: 44px;
  }
  .side-float-btn:hover {
    width: 44px;
  }
  .side-float-btn .side-label {
    display: none;
  }
}

@media (max-width: 480px) {
  .section-header h2 {
    font-size: 24px;
  }
  .btn-lg {
    padding: 14px 24px;
    font-size: 14px;
  }
}

/* === Print === */
@media print {
  .announcement-bar,
  .side-float,
  .whatsapp-float {
    display: none !important;
  }
}