/**
 * Components: Buttons, Cards, Navigation, etc.
 */

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease),
              box-shadow var(--duration-fast) var(--ease),
              background var(--duration-fast) var(--ease);
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: linear-gradient(180deg, var(--color-accent-light), var(--color-accent-dark));
  color: white;
  box-shadow: 0 1px 2px rgba(45, 91, 255, 0.2), 0 0 0 1px rgba(45, 91, 255, 0.1) inset;
}

.btn-primary:hover {
  background: linear-gradient(180deg, #1aadff, #006ab5);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(45, 91, 255, 0.3);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
}

.btn-sm {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
}

/* ── Cards ── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: transform var(--duration-hero) var(--ease),
              background var(--duration-hero) var(--ease),
              box-shadow var(--duration-hero) var(--ease);
  opacity: 0;
  transform: translateY(24px);
}

.card.visible {
  opacity: 1;
  transform: translateY(0);
}

.card:hover {
  transform: translateY(-3px);
  background: var(--color-surface-hover);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: rgba(45, 91, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  transition: transform var(--duration-fast) var(--ease);
}

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

.card-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-accent);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-2);
}

.card-desc {
  font-size: var(--text-sm);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

/* ── Theme Toggle ── */
.theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  border-radius: var(--radius-full);
  background: transparent;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease);
}

.theme-toggle:hover {
  background: var(--color-surface-hover);
}

.theme-toggle:active {
  transform: scale(0.95);
}

.theme-toggle-bg {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  pointer-events: none;
  transition: border-color var(--duration-fast) var(--ease);
}

.theme-toggle:hover .theme-toggle-bg {
  border-color: var(--color-border-hover);
}

.theme-icon {
  position: absolute;
  color: var(--color-text);
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-normal) var(--ease-out);
}

.theme-icon-light {
  transform: rotate(0deg) scale(1);
  opacity: 1;
}

.theme-icon-dark {
  transform: rotate(-180deg) scale(0.7);
  opacity: 0;
}

html.dark .theme-icon-light {
  transform: rotate(180deg) scale(0.7);
  opacity: 0;
}

html.dark .theme-icon-dark {
  transform: rotate(0deg) scale(1);
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .theme-toggle,
  .theme-toggle-bg,
  .theme-icon {
    transition: none;
  }

  .theme-icon-light {
    transform: rotate(0deg) scale(1);
  }

  .theme-icon-dark {
    transform: rotate(0deg) scale(1);
  }

  html.dark .theme-icon-light {
    transform: rotate(0deg) scale(1);
  }

  html.dark .theme-icon-dark {
    transform: rotate(0deg) scale(1);
  }
}

/* ── Navigation ── */
.navbar {
  position: fixed;
  top: 0.75rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-fixed);
  width: calc(100% - 2rem);
  max-width: 960px;
  padding: 0;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  backdrop-filter: blur(20px) saturate(1.2);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  transition: background var(--duration-normal) var(--ease),
              backdrop-filter var(--duration-normal) var(--ease),
              box-shadow var(--duration-normal) var(--ease);
}

html.dark .navbar {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

@media (prefers-color-scheme: dark) {
  .navbar:not(html.light .navbar) {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  }
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-6);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}

.nav-logo-box {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-fast) var(--ease);
}

.nav-logo:hover .nav-logo-box {
  transform: scale(1.05);
}

.nav-logo img {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-1);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease), background var(--duration-fast) var(--ease);
}

.nav-link:hover {
  color: var(--color-text);
  background: rgba(0, 0, 0, 0.03);
}

@media (prefers-color-scheme: dark) {
  .nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
  }
}

.nav-actions {
  display: none;
  align-items: center;
  gap: var(--space-3);
}

@media (min-width: 768px) {
  .nav-actions {
    display: flex;
  }
}

/* ── Mobile Menu ── */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast) var(--ease);
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu-btn:hover {
  background: rgba(0, 0, 0, 0.04);
}

@media (prefers-color-scheme: dark) {
  .mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.05);
  }
}

.mobile-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  right: 0;
  max-height: 0;
  overflow: hidden;
  border-radius: 1rem;
  background: var(--color-surface);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  transition: max-height var(--duration-normal) var(--ease), opacity var(--duration-normal) var(--ease);
  opacity: 0;
}

.mobile-menu.open {
  max-height: 300px;
  opacity: 1;
}

.mobile-menu-inner {
  padding: var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-menu .nav-link {
  display: block;
  padding: var(--space-2) var(--space-4);
}

/* ── Download Coming Soon Button ── */
.btn-coming-soon {
  position: relative;
  overflow: hidden;
  cursor: default;
}

.btn-coming-soon .btn-label-default,
.btn-coming-soon .btn-label-hover {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: opacity 280ms var(--ease),
              transform 280ms var(--ease);
}

.btn-coming-soon .btn-label-hover {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(6px);
}

.btn-coming-soon:hover .btn-label-default {
  opacity: 0;
  transform: translateY(-6px);
}

.btn-coming-soon:hover .btn-label-hover {
  opacity: 1;
  transform: translateY(0);
}

.btn-primary.btn-coming-soon:hover {
  background: linear-gradient(180deg, #2a2f3a, #1a1e26) !important;
  color: white !important;
  transform: none !important;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3) !important;
  transition: background 280ms var(--ease), box-shadow 280ms var(--ease);
}

.btn-secondary.btn-coming-soon:hover {
  background: var(--color-surface-alt);
  transform: none;
}

/* ── Waitlist Form ── */
.waitlist-form {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-8);
  max-width: 400px;
  margin-inline: auto;
}

/* ── Waitlist Modal ── */
.waitlist-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease);
}

.waitlist-modal.open {
  opacity: 1;
  pointer-events: auto;
}

.waitlist-modal-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  max-width: 360px;
  text-align: center;
  animation: modalSlideUp var(--duration-normal) var(--ease);
}

@keyframes modalSlideUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.waitlist-modal.open .waitlist-modal-card {
  animation: modalSlideUp var(--duration-normal) var(--ease);
}

.waitlist-modal-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: rgba(0, 158, 255, 0.1);
  color: var(--color-accent);
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-4);
}

.waitlist-modal-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.waitlist-modal-body {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
}

.waitlist-modal-close {
  cursor: pointer;
}

.waitlist-input {
  flex: 1;
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-base);
  font-family: var(--font-body);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--duration-fast) var(--ease),
              box-shadow var(--duration-fast) var(--ease);
  -webkit-appearance: none;
}

.waitlist-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 158, 255, 0.12);
}

.waitlist-input::placeholder {
  color: var(--color-text-muted);
}

@media (max-width: 480px) {
  .waitlist-form {
    flex-direction: column;
  }
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-border), transparent);
  margin: 0 var(--section-pad-inline);
}

/* ── Back to Top ── */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: var(--z-fixed);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--duration-fast) var(--ease),
              transform var(--duration-fast) var(--ease),
              box-shadow var(--duration-fast) var(--ease);
  pointer-events: none;
}

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

.back-to-top:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.back-to-top svg {
  width: 1rem;
  height: 1rem;
  color: var(--color-text-secondary);
}