/**
 * Teaform 茶予 - Component Styles
 * Buttons, cards, forms, navigation, and more
 */

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  font-family: var(--font-family-cn-sans);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
}

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

/* Primary Button */
.btn-primary {
  background-color: var(--color-secondary);
  color: var(--color-white);
  border-color: var(--color-secondary);
}

.btn-primary:hover {
  background-color: var(--color-secondary-deep);
  border-color: var(--color-secondary-deep);
  box-shadow: 0 4px 12px var(--color-secondary-opacity-40);
}

/* Secondary Button */
.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

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

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

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

/* Ghost Button */
.btn-ghost {
  background-color: transparent;
  color: var(--color-primary);
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: var(--color-gray-100);
}

/* Button Sizes */
.btn-sm {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
}

/* Full Width Button */
.btn-block {
  display: flex;
  width: 100%;
}

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

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

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

.card-image {
  width: 100%;
  height: 240px;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

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

.card-title {
  font-family: var(--font-family-cn-serif);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.card-text {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-4);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.card-tag {
  display: inline-block;
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
  background-color: var(--color-accent-light);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  color: var(--color-secondary);
  font-weight: var(--font-weight-medium);
  transition: gap var(--transition-fast);
}

.card-link:hover {
  gap: var(--spacing-2);
}

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

.form-group {
  margin-bottom: var(--spacing-6);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  margin-bottom: var(--spacing-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  font-family: var(--font-family-cn-sans);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  border: 1px solid var(--form-border-color);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--form-border-focus);
  box-shadow: 0 0 0 3px var(--color-secondary-opacity-20);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2343596A'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-3) center;
  background-size: 16px;
  padding-right: var(--spacing-10);
}

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

.form-help {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--spacing-1);
}

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

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
}

.nav-link {
  position: relative;
  font-family: var(--font-family-cn-serif);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: #FFFFFF;
  text-decoration: none;
  padding: var(--spacing-2) 0;
  transition: color var(--transition-base);
  /* White text with dark primary color shadow/stroke */
  -webkit-text-stroke: 1.5px rgba(67, 89, 106, 0.85);
  paint-order: stroke fill;
  text-shadow: 0 0 8px rgba(67, 89, 106, 0.3);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-secondary);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-primary);
  -webkit-text-stroke: 1.5px rgba(67, 89, 106, 0.85);
  paint-order: stroke fill;
  text-shadow: 0 0 8px rgba(67, 89, 106, 0.3);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.active {
  color: #DABC8A;
  -webkit-text-stroke: 0px transparent;
  paint-order: fill;
  text-shadow: none;
}

/* When header is scrolled, switch to light text */
.header.scrolled .nav-link {
  color: rgba(255, 255, 255, 0.9);
  /* Dark text stroke for white text */
  -webkit-text-stroke: 1.5px rgba(0, 0, 0, 0.85);
  paint-order: stroke fill;
}

.header.scrolled .nav-link:hover {
  color: var(--color-secondary);
  -webkit-text-stroke: 1.5px rgba(0, 0, 0, 0.85);
  paint-order: stroke fill;
}

.header.scrolled .nav-link.active {
  color: var(--color-secondary);
  -webkit-text-stroke: 1.5px rgba(0, 0, 0, 0.85);
  paint-order: stroke fill;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: var(--spacing-1);
  background: none;
  border: none;
  padding: var(--spacing-2);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-secondary);
  transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

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

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

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, transparent 0%, rgba(47, 63, 79, 0.7) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 600px;
}

.hero-preheadline {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  margin-bottom: var(--spacing-4);
}

.hero-headline {
  font-size: var(--font-size-6xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  margin-bottom: var(--spacing-4);
  line-height: 1.1;
}

.hero-subheadline {
  font-size: var(--font-size-2xl);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-8);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-4);
  flex-wrap: wrap;
}

/* ============================================
     SCROLL INDICATOR
  ============================================ */

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-3);
  color: var(--color-secondary);
  text-decoration: none;
  cursor: pointer;
  opacity: 0.8;
  transition: opacity var(--transition-base);
}

.scroll-indicator:hover {
  opacity: 1;
}

.scroll-indicator-text {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
  color: var(--color-secondary);
}

.scroll-indicator-arrow {
  width: 24px;
  height: 40px;
  border: 2px solid var(--color-secondary);
  border-radius: var(--radius-full);
  position: relative;
  display: flex;
  justify-content: center;
  padding-top: var(--spacing-2);
}

.scroll-indicator-arrow::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  width: 6px;
  height: 6px;
  margin-left: -3px;
  border-right: 2px solid var(--color-secondary);
  border-bottom: 2px solid var(--color-secondary);
  transform: rotate(45deg);
  animation: scroll-bounce 2s infinite;
}

@keyframes scroll-bounce {
  0%, 20%, 50%, 80%, 100% {
    top: 8px;
    opacity: 1;
  }
  40% {
    top: 16px;
    opacity: 0.5;
  }
  60% {
    top: 12px;
    opacity: 0.8;
  }
}

/* ============================================
     GRID SYSTEM
  ============================================ */

.grid {
  display: grid;
  gap: var(--grid-gap);
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

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

.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.5fr 1fr 1fr;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-12);
}

.footer-title {
  font-family: var(--font-family-cn-serif);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-white);
  margin-bottom: var(--spacing-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.footer-link {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-base);
}

.footer-link:hover {
  color: var(--color-secondary);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.footer-icon {
  flex-shrink: 0;
  opacity: 0.8;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-icp {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

.footer-eco {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--color-accent);
  font-size: var(--font-size-sm);
}

/* ============================================
     RESPONSIVE
  ============================================ */

@media (max-width: 1024px) {
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .grid-cols-3,
  .grid-cols-2 {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 80vh;
  }

  .hero-headline {
    font-size: var(--font-size-4xl);
  }

  .hero-subheadline {
    font-size: var(--font-size-lg);
  }

  .hero-actions {
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-4);
  }

  /* Scroll Indicator Mobile */
  .scroll-indicator {
    bottom: var(--spacing-6);
  }

  .scroll-indicator-arrow {
    width: 20px;
    height: 36px;
  }

  .scroll-indicator-arrow::before {
    width: 5px;
    height: 5px;
  }

  /* Footer Mobile Styles */
  .footer .logo-text-en {
    font-size: var(--font-size-xl) !important;
  }

  .footer .logo-text {
    font-size: var(--font-size-lg) !important;
  }

  .footer-contact-item {
    flex-wrap: wrap;
  }

  .footer-icon {
    width: 14px;
    height: 14px;
  }

  .footer-icp {
    font-size: var(--font-size-xs);
    text-align: center;
    overflow-wrap: break-word;
    hyphens: auto;
  }

  .footer-eco {
    font-size: var(--font-size-xs);
    justify-content: center;
    align-items: center;
  }

  .footer-eco svg {
    flex-shrink: 0;
  }
}