/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: transform var(--transition-fast),
              box-shadow var(--transition-fast),
              background-color var(--transition-fast);
  white-space: nowrap;
}

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

.btn:active {
  transform: translateY(0);
}

.btn-lg {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-lg);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

/* Primary - Forest Green with Black text */
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-dark);
}

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

/* Success - Neon Lime with Black text */
.btn-success {
  background-color: var(--color-success);
  color: var(--color-dark);
}

.btn-success:hover {
  background-color: #65e000;
  color: var(--color-dark);
}

/* Info - Cyan with Black text */
.btn-info {
  background-color: var(--color-info);
  color: var(--color-dark);
}

.btn-info:hover {
  background-color: #2dd9f3;
  color: var(--color-dark);
}

/* Danger - Coral with Black text */
.btn-danger {
  background-color: var(--color-danger);
  color: var(--color-dark);
}

.btn-danger:hover {
  background-color: #e64342;
  color: var(--color-dark);
}

/* Dark - Black with White text */
.btn-dark {
  background-color: var(--color-dark);
  color: var(--color-white);
}

.btn-dark:hover {
  background-color: var(--color-gray-800);
  color: var(--color-white);
}

/* Outline variants */
.btn-outline {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-dark);
}

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

.btn-outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-dark);
}

/* ==========================================================================
   FORMS
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: var(--font-medium);
  color: var(--color-dark);
}

.form-control {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-dark);
  background-color: var(--color-white);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-subtle);
}

.form-control::placeholder {
  color: var(--color-gray-500);
}

.form-control.is-invalid {
  border-color: var(--color-danger);
}

.form-control.is-invalid:focus {
  box-shadow: 0 0 0 3px var(--color-danger-subtle);
}

.form-control.is-valid {
  border-color: var(--color-primary);
}

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

.form-error {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-danger);
}

.form-success {
  padding: var(--space-4);
  margin-top: var(--space-4);
  background-color: var(--color-success-subtle);
  border-radius: var(--border-radius-md);
  color: var(--color-dark);
  text-align: center;
}

/* ==========================================================================
   CARDS
   ========================================================================== */

.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base),
              box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-body {
  padding: var(--space-5);
}

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

.card-text {
  color: var(--color-gray-700);
}

/* Feature card */
.feature-card {
  padding: var(--space-6);
  text-align: center;
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  transition: transform var(--transition-base),
              box-shadow var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-4);
  background-color: var(--color-primary-subtle);
  border-radius: var(--border-radius-full);
}

.feature-card__icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
}

.feature-card__title {
  margin-bottom: var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
}

.feature-card__text {
  color: var(--color-gray-700);
  font-size: var(--text-sm);
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background-color: transparent;
  transition: background-color var(--transition-base),
              box-shadow var(--transition-base);
}

.header.is-scrolled {
  background-color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  text-decoration: none;
}

.logo img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: filter var(--transition-fast);
}

.header.is-scrolled .logo img {
  filter: none;
}

.header.is-scrolled .logo,
.header .logo {
  color: var(--color-dark);
}

/* Desktop navigation */
.nav {
  display: none;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav__link {
  font-weight: var(--font-medium);
  color: var(--color-white);
  text-decoration: none;
  transition: color var(--transition-fast);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.nav__link:hover {
  color: var(--color-success);
}

/* Dark nav links when header is scrolled */
.header.is-scrolled .nav__link {
  color: var(--color-dark);
  text-shadow: none;
}

.header.is-scrolled .nav__link:hover {
  color: var(--color-primary);
}

@media (min-width: 1024px) {
  .nav {
    display: block;
  }

  .nav-toggle {
    display: none;
  }
}

/* Mobile navigation toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle__line {
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  transition: transform var(--transition-fast),
              opacity var(--transition-fast);
}

.header.is-scrolled .nav-toggle__line {
  background-color: var(--color-dark);
}

.nav-toggle.is-active .nav-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active .nav-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile drawer */
.nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 320px;
  background-color: var(--color-white);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  z-index: var(--z-modal);
  padding: var(--space-6);
  padding-top: 100px;
}

.nav-drawer.is-open {
  transform: translateX(0);
}

.nav-drawer__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.nav-drawer__link {
  display: block;
  padding: var(--space-3) 0;
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  color: var(--color-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--color-gray-200);
}

.nav-drawer__link:hover {
  color: var(--color-primary);
}

.nav-drawer .btn {
  margin-top: var(--space-6);
  width: 100%;
}

/* Overlay */
.nav-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base),
              visibility var(--transition-base);
  z-index: var(--z-modal-backdrop);
}

body.nav-open .nav-overlay {
  opacity: 1;
  visibility: visible;
}

/* ==========================================================================
   HERO
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  overflow: hidden;
}

.hero__background {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero__background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.55) 0%,
    rgba(0, 0, 0, 0.7) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  color: var(--color-white);
  padding: var(--space-8) var(--space-4);
}

.hero__title {
  margin-bottom: var(--space-4);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

.hero__subtitle {
  font-size: var(--text-lg);
  margin-bottom: var(--space-6);
  font-weight: var(--font-medium);
  color: var(--color-white);
}

@media (min-width: 768px) {
  .hero__subtitle {
    font-size: var(--text-xl);
  }
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (min-width: 480px) {
  .hero__actions {
    flex-direction: row;
  }
}

/* Light hero variant */
.hero--light {
  background-color: var(--color-light);
}

.hero--light .hero__content {
  color: var(--color-dark);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  background-color: var(--color-dark);
  color: var(--color-white);
  padding: var(--space-12) 0 var(--space-6);
}

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

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

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-4);
}

.footer__description {
  color: var(--color-gray-500);
  font-size: var(--text-sm);
}

.footer__privacy {
  color: var(--color-gray-400);
  font-size: var(--text-xs);
  margin-top: var(--space-3);
}

.footer__privacy strong {
  color: var(--color-success);
}

.footer__title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
  color: var(--color-gray-500);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__link {
  color: var(--color-white);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-primary);
}

.footer__bottom {
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-gray-800);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__copyright {
  color: var(--color-gray-500);
  font-size: var(--text-sm);
}

.footer__social {
  display: flex;
  gap: var(--space-4);
}

.footer__social a {
  color: var(--color-white);
  transition: color var(--transition-fast);
}

.footer__social a:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   TABS
   ========================================================================== */

.tabs-nav {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  -webkit-overflow-scrolling: touch;
}

.tabs-nav__btn {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-gray-700);
  background-color: var(--color-gray-100);
  border: none;
  border-radius: var(--border-radius-full);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--transition-fast),
              color var(--transition-fast);
}

.tabs-nav__btn:hover {
  background-color: var(--color-gray-200);
}

.tabs-nav__btn.is-active {
  background-color: var(--color-primary);
  color: var(--color-dark);
}

.tabs-panel {
  display: none;
}

.tabs-panel.is-active {
  display: block;
  animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */

[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow),
              transform var(--transition-slow);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-animate][data-delay="100"] {
  transition-delay: 100ms;
}

[data-animate][data-delay="200"] {
  transition-delay: 200ms;
}

[data-animate][data-delay="300"] {
  transition-delay: 300ms;
}

[data-animate][data-delay="400"] {
  transition-delay: 400ms;
}

/* ==========================================================================
   ICON PLACEHOLDERS
   ========================================================================== */

.icon-placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary-subtle);
  border-radius: var(--border-radius-full);
  color: var(--color-primary);
  font-weight: var(--font-bold);
  font-size: var(--text-lg);
}

.icon-placeholder--lg {
  width: 64px;
  height: 64px;
  font-size: var(--text-xl);
}

/* ==========================================================================
   IMAGE PLACEHOLDERS (for development)
   ========================================================================== */

.img-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-gray-200);
  color: var(--color-gray-500);
  font-size: var(--text-sm);
  text-align: center;
}

/* ==========================================================================
   PRODUCT IMAGES
   ========================================================================== */

.product-image {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-gray-100);
  padding: var(--space-6);
}

.product-image img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

/* ==========================================================================
   SCREENSHOT IMAGES
   ========================================================================== */

.screenshot-image {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-dark);
  padding: var(--space-4);
  overflow: hidden;
}

.screenshot-image img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   BADGES
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  border-radius: var(--border-radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-coming-soon {
  background-color: var(--color-success);
  color: var(--color-dark);
}

.badge-preorder {
  background-color: var(--color-primary);
  color: var(--color-dark);
}

/* Hero badge positioning */
.hero__badge {
  margin-bottom: var(--space-4);
}

/* ==========================================================================
   PRODUCTS HERO
   ========================================================================== */

.products-hero {
  position: relative;
  padding-top: 120px;
  padding-bottom: var(--space-12);
  overflow: hidden;
}

.products-hero__background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.products-hero__background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.products-hero__background::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.5) 0%,
    rgba(0, 0, 0, 0.65) 100%
  );
}

.products-hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.products-hero__content h1 {
  color: var(--color-white);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
  margin-bottom: var(--space-4);
}

.products-hero__content .lead {
  color: var(--color-white);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

@media (min-width: 768px) {
  .products-hero {
    padding-top: 140px;
    padding-bottom: var(--space-16);
  }
}