/* ============================================================
   RichChip Website — components.css
   Navbar, buttons, forms, modals, and reusable components
   ============================================================ */

/* ── Navbar ────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--transition), backdrop-filter var(--transition),
              box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(8, 14, 30, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-btn);
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--surface-mid);
  border: 1px solid var(--border);
  border-radius: var(--radius-badge);
  padding: 3px;
}

.lang-btn {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 5px 12px;
  border-radius: 16px;
  color: var(--text-muted);
  transition: all var(--transition);
  background: transparent;
  border: none;
  cursor: pointer;
}

.lang-btn.active {
  background: var(--rich-blue);
  color: #fff;
}

/* Hamburger Button */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger.open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(8, 14, 30, 0.98);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  backdrop-filter: blur(12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mobile-nav.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-link {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 12px 32px;
  transition: all var(--transition);
  border-radius: var(--radius-card);
}

.mobile-nav-link:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.mobile-lang-toggle {
  margin-top: 24px;
  display: flex;
  gap: 12px;
}

.mobile-lang-btn {
  padding: 10px 28px;
  border-radius: var(--radius-badge);
  font-weight: 700;
  font-size: 0.875rem;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition);
}

.mobile-lang-btn.active {
  background: var(--rich-blue);
  border-color: var(--rich-blue);
  color: #fff;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--rich-blue);
  color: #fff;
  box-shadow: 0 4px 16px var(--rich-blue-glow);
}

.btn-primary:hover {
  background: var(--rich-blue-hover);
  box-shadow: 0 6px 24px rgba(26, 111, 255, 0.45);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--rich-blue);
  color: var(--rich-blue);
  background: var(--rich-blue-glow);
  transform: translateY(-2px);
}

.btn-cyan {
  background: var(--privacy-cyan);
  color: var(--deep-space);
  box-shadow: 0 4px 16px var(--privacy-cyan-glow);
}

.btn-cyan:hover {
  background: #00eedd;
  box-shadow: 0 6px 24px rgba(0, 212, 200, 0.45);
  transform: translateY(-2px);
}

.btn-green {
  background: var(--signal-green);
  color: var(--deep-space);
  box-shadow: 0 4px 16px var(--signal-green-glow);
}

.btn-green:hover {
  background: #1aff8a;
  box-shadow: 0 6px 24px rgba(0, 232, 122, 0.45);
  transform: translateY(-2px);
}

.btn-purple {
  background: var(--security-purple);
  color: #fff;
  box-shadow: 0 4px 16px var(--security-purple-glow);
}

.btn-purple:hover {
  background: #b070ff;
  box-shadow: 0 6px 24px rgba(155, 89, 255, 0.45);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1rem;
}

/* ── Contact Form ───────────────────────────────────────────── */
.contact-form {
  background: var(--surface-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.03em;
}

.form-control {
  width: 100%;
  background: var(--surface-mid);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: all var(--transition);
  outline: none;
}

.form-control:focus {
  border-color: var(--rich-blue);
  box-shadow: 0 0 0 3px var(--rich-blue-glow);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-control option {
  background: var(--surface-mid);
  color: var(--text-primary);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.radio-option input[type="radio"] {
  appearance: none;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-radius: 50%;
  transition: all var(--transition);
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
}

.radio-option input[type="radio"]:checked {
  border-color: var(--rich-blue);
  background: var(--rich-blue);
  box-shadow: 0 0 0 3px var(--rich-blue-glow) inset;
}

.radio-option input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: #fff;
}

.radio-option span {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.form-submit {
  width: 100%;
  margin-top: 8px;
}

/* ── Product Card Link Btn ──────────────────────────────────── */
.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.learn-more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--card-accent, var(--rich-blue));
  transition: gap var(--transition);
}

.learn-more-link:hover {
  gap: 10px;
}

/* ── Divider ────────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 48px 0;
}

/* ── Section Label (colored) ────────────────────────────────── */
.label-cyan { color: var(--privacy-cyan) !important; }
.label-green { color: var(--signal-green) !important; }
.label-purple { color: var(--security-purple) !important; }

/* ── Scroll Progress Bar ────────────────────────────────────── */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--rich-blue), var(--privacy-cyan));
  z-index: 2000;
  transition: width 0.1s linear;
}

/* ── Back to Top ────────────────────────────────────────────── */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--rich-blue);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(16px);
  transition: all var(--transition);
  z-index: 100;
  box-shadow: 0 4px 16px var(--rich-blue-glow);
  cursor: pointer;
  border: none;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--rich-blue-hover);
  transform: translateY(-4px);
}

.form-toast {
  position: fixed;
  top: 88px;
  left: 50%;
  z-index: 2000;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: min(420px, calc(100vw - 32px));
  padding: 16px 18px;
  border: 1px solid rgba(0, 212, 200, 0.28);
  border-radius: 8px;
  background: rgba(10, 18, 32, 0.94);
  color: #fff;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  opacity: 0;
  transform: translate(-50%, -12px);
  transition: opacity 220ms ease, transform 220ms ease;
}

.form-toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.form-toast-icon {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--signal-green);
  color: #04111f;
  font-weight: 800;
}

@media (max-width: 640px) {
  .form-toast {
    top: 80px;
    right: 16px;
    left: 16px;
    max-width: none;
    transform: translateY(-12px);
  }

  .form-toast.visible {
    transform: translateY(0);
  }
}

/* ── Product Theme Colors ─────────────────────────────────────
   Applied on <body> with .theme-blue | .theme-cyan | .theme-green | .theme-purple
   ────────────────────────────────────────────────────────── */
body.theme-blue  { --page-accent: var(--rich-blue);       --page-glow: var(--rich-blue-glow); }
body.theme-cyan  { --page-accent: var(--privacy-cyan);    --page-glow: var(--privacy-cyan-glow); }
body.theme-green { --page-accent: var(--signal-green);    --page-glow: var(--signal-green-glow); }
body.theme-purple{ --page-accent: var(--security-purple); --page-glow: var(--security-purple-glow); }

/* Product card per-category color variables via data-category */
.product-card[data-category="storage"] {
  --card-accent: var(--rich-blue);
  --card-glow: var(--rich-blue-glow);
  --card-icon-bg: var(--rich-blue-glow);
}
.product-card[data-category="ai"] {
  --card-accent: var(--privacy-cyan);
  --card-glow: var(--privacy-cyan-glow);
  --card-icon-bg: var(--privacy-cyan-glow);
}
.product-card[data-category="audio"] {
  --card-accent: var(--signal-green);
  --card-glow: var(--signal-green-glow);
  --card-icon-bg: var(--signal-green-glow);
}
.product-card[data-category="security"] {
  --card-accent: var(--security-purple);
  --card-glow: var(--security-purple-glow);
  --card-icon-bg: var(--security-purple-glow);
}

/* Use case card per-product color variables */
.usecase-card[data-product="storage"] {
  --card-accent: var(--rich-blue);
  --card-glow: var(--rich-blue-glow);
  --card-icon-bg: var(--rich-blue-glow);
  --card-hover-bg: linear-gradient(135deg, rgba(26,111,255,0.04) 0%, transparent 80%);
}
.usecase-card[data-product="ai"] {
  --card-accent: var(--privacy-cyan);
  --card-glow: var(--privacy-cyan-glow);
  --card-icon-bg: var(--privacy-cyan-glow);
  --card-hover-bg: linear-gradient(135deg, rgba(0,212,200,0.04) 0%, transparent 80%);
}
.usecase-card[data-product="audio"] {
  --card-accent: var(--signal-green);
  --card-glow: var(--signal-green-glow);
  --card-icon-bg: var(--signal-green-glow);
  --card-hover-bg: linear-gradient(135deg, rgba(0,232,122,0.04) 0%, transparent 80%);
}
.usecase-card[data-product="security"] {
  --card-accent: var(--security-purple);
  --card-glow: var(--security-purple-glow);
  --card-icon-bg: var(--security-purple-glow);
  --card-hover-bg: linear-gradient(135deg, rgba(155,89,255,0.04) 0%, transparent 80%);
}