/* MomSpeak Component Styles */

/* ============================================
   Top Navigation Bar
   ============================================ */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--ms-nav-height);
  padding: 0 var(--ms-spacing-md);
  background-color: var(--ms-bg-normal);
  border-bottom: 1px solid var(--ms-border-normal);
}

.top-nav-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ms-label-strong);
}

.top-nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.top-nav-logo a {
  display: flex;
  align-items: center;
  line-height: 0;
}

.top-nav-logo img {
  height: 36px;
}

.top-nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  border-radius: var(--ms-radius-full);
  cursor: pointer;
  color: var(--ms-label-normal);
  transition: background-color 0.2s;
}

.nav-icon-btn:hover {
  background-color: var(--ms-bg-neutral);
}

.nav-icon-btn svg {
  width: 24px;
  height: 24px;
}

/* ============================================
   Bottom Navigation Bar
   ============================================ */
.bottom-nav {
  position: sticky;
  bottom: 0;
  z-index: 100;
  display: flex;
  justify-content: space-around;
  align-items: flex-start;
  width: 100%;
  height: var(--ms-bottom-nav-height);
  padding: var(--ms-spacing-sm) var(--ms-spacing-lg);
  padding-bottom: calc(var(--ms-spacing-sm) + var(--ms-safe-area-bottom));
  background-color: var(--ms-bg-normal);
  border-top: 1px solid var(--ms-border-normal);
  flex-shrink: 0;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  width: 64px;
  padding: 4px 0;
  cursor: pointer;
  color: var(--ms-label-alternative);
  opacity: 0.5;
  transition: all 0.2s ease;
  text-decoration: none;
}

.nav-item.active,
.nav-item:hover {
  color: var(--ms-label-normal);
  opacity: 1;
}

.nav-item svg {
  width: 24px;
  height: 24px;
}

.nav-item span {
  font-size: 11px;
  font-weight: 600;
}

/* Badge on nav item */
.nav-item-wrapper {
  position: relative;
}

.nav-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: var(--ms-radius-full);
  background-color: var(--ms-primary-normal);
  color: var(--ms-static-white);
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
  position: relative;
  padding: var(--ms-spacing-xl) var(--ms-spacing-md);
  background: linear-gradient(180deg, var(--ms-orange-50) 0%, var(--ms-bg-normal) 100%);
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 12px;
  margin-bottom: var(--ms-spacing-md);
  border-radius: var(--ms-radius-full);
  background-color: var(--ms-primary-bg);
  color: var(--ms-primary-normal);
  font-size: 13px;
  font-weight: 600;
}

.hero-title {
  font-size: 28px;
  line-height: 38px;
  font-weight: 700;
  color: var(--ms-label-strong);
  margin-bottom: var(--ms-spacing-sm);
}

.hero-title .highlight {
  color: var(--ms-primary-normal);
}

.hero-subtitle {
  font-size: 15px;
  line-height: 22px;
  color: var(--ms-label-alternative);
  margin-bottom: var(--ms-spacing-lg);
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: var(--ms-spacing-sm);
}

/* ============================================
   Feature Cards
   ============================================ */
.feature-section {
  padding: var(--ms-spacing-lg) var(--ms-spacing-md);
}

.section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--ms-label-strong);
  margin-bottom: var(--ms-spacing-md);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--ms-spacing-md);
}

.feature-card {
  padding: var(--ms-spacing-md);
  border-radius: var(--ms-radius-md);
  background-color: var(--ms-bg-neutral);
  text-align: center;
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--ms-spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--ms-radius-md);
  background-color: var(--ms-primary-bg);
  color: var(--ms-primary-normal);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ms-label-strong);
  margin-bottom: 4px;
}

.feature-desc {
  font-size: 12px;
  color: var(--ms-label-alternative);
}

/* ============================================
   How It Works
   ============================================ */
.steps-section {
  padding: var(--ms-spacing-lg) var(--ms-spacing-md);
  background-color: var(--ms-bg-neutral);
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: var(--ms-spacing-md);
}

.step-item {
  display: flex;
  gap: var(--ms-spacing-md);
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--ms-radius-full);
  background-color: var(--ms-primary-normal);
  color: var(--ms-static-white);
  font-size: 14px;
  font-weight: 700;
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ms-label-strong);
  margin-bottom: 4px;
}

.step-desc {
  font-size: 14px;
  color: var(--ms-label-alternative);
}

/* ============================================
   Sample Content Preview
   ============================================ */
.preview-section {
  padding: var(--ms-spacing-lg) var(--ms-spacing-md);
}

.preview-card {
  border-radius: var(--ms-radius-lg);
  background-color: var(--ms-bg-normal);
  border: 1px solid var(--ms-border-normal);
  overflow: hidden;
}

.preview-header {
  padding: var(--ms-spacing-md);
  background-color: var(--ms-primary-bg);
  border-bottom: 1px solid var(--ms-border-normal);
}

.preview-date {
  font-size: 12px;
  color: var(--ms-label-alternative);
  margin-bottom: 4px;
}

.preview-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ms-label-strong);
}

.preview-body {
  padding: var(--ms-spacing-md);
}

.preview-sentence {
  margin-bottom: var(--ms-spacing-md);
  padding: var(--ms-spacing-md);
  background-color: var(--ms-bg-neutral);
  border-radius: var(--ms-radius-sm);
}

.preview-english {
  font-size: 18px;
  font-weight: 600;
  color: var(--ms-label-strong);
  margin-bottom: 4px;
}

.preview-korean {
  font-size: 14px;
  color: var(--ms-label-alternative);
}

.play-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--ms-radius-full);
  background-color: var(--ms-primary-normal);
  color: var(--ms-static-white);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.play-btn:hover {
  background-color: var(--ms-orange-600);
}

.play-btn svg {
  width: 20px;
  height: 20px;
}

/* ============================================
   Testimonials
   ============================================ */
.testimonial-section {
  padding: var(--ms-spacing-lg) var(--ms-spacing-md);
  background-color: var(--ms-bg-neutral);
}

.testimonial-carousel-wrapper {
  overflow: hidden;
  padding: 0 var(--ms-spacing-md);
}

.testimonial-carousel-track {
  display: flex;
  gap: var(--ms-spacing-md);
  animation: testimonialScroll 24s linear infinite;
  width: calc((100% + var(--ms-spacing-md)) * 6);
}

.testimonial-carousel-track:hover {
  animation-play-state: paused;
}

@keyframes testimonialScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(calc(-50%));
  }
}

.testimonial-card {
  flex-shrink: 0;
  width: calc((100% - var(--ms-spacing-md) * 5) / 6);
  padding: var(--ms-spacing-md);
  background-color: var(--ms-bg-normal);
  border-radius: var(--ms-radius-md);
  border: 1px solid var(--ms-border-normal);
}

.testimonial-content {
  font-size: 14px;
  line-height: 22px;
  color: var(--ms-label-normal);
  margin-bottom: var(--ms-spacing-md);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--ms-spacing-sm);
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--ms-radius-full);
  background-color: var(--ms-gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.testimonial-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ms-label-strong);
}

.testimonial-role {
  font-size: 12px;
  color: var(--ms-label-alternative);
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
  padding: var(--ms-spacing-xl) var(--ms-spacing-md);
  text-align: center;
  background: linear-gradient(180deg, var(--ms-bg-normal) 0%, var(--ms-orange-50) 100%);
}

.cta-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--ms-label-strong);
  margin-bottom: var(--ms-spacing-sm);
}

.cta-subtitle {
  font-size: 14px;
  color: var(--ms-label-alternative);
  margin-bottom: var(--ms-spacing-lg);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: var(--ms-spacing-xl) var(--ms-spacing-md);
  padding-bottom: calc(var(--ms-spacing-xl) + var(--ms-safe-area-bottom));
  background-color: var(--ms-gray-950);
  color: var(--ms-gray-400);
}

.footer-inner {
  max-width: 480px;
  margin: 0 auto;
}

.footer-logo {
  margin-bottom: var(--ms-spacing-md);
}

.footer-logo-img {
  height: 32px;
  width: auto;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ms-spacing-md);
  margin-bottom: var(--ms-spacing-lg);
  padding-bottom: var(--ms-spacing-lg);
  border-bottom: 1px solid var(--ms-gray-800);
}

.footer-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--ms-gray-400);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--ms-static-white);
}

.footer-info {
  margin-bottom: var(--ms-spacing-lg);
}

.footer-info p {
  font-size: 12px;
  line-height: 1.8;
  color: var(--ms-gray-500);
}

.footer-company {
  font-size: 13px !important;
  font-weight: 600;
  color: var(--ms-gray-400) !important;
  margin-bottom: var(--ms-spacing-xs);
}

.footer-copyright {
  font-size: 12px;
  color: var(--ms-gray-600);
  padding-top: var(--ms-spacing-md);
  border-top: 1px solid var(--ms-gray-800);
}

/* ============================================
   Login / Auth
   ============================================ */
.auth-section {
  padding: var(--ms-spacing-xl) var(--ms-spacing-md);
  text-align: center;
}

.kakao-login-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: var(--ms-radius-md);
  background-color: #FEE500;
  color: #000000;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.kakao-login-btn:hover {
  background-color: #FFEB3B;
}

.kakao-login-btn svg {
  width: 20px;
  height: 20px;
}

/* ============================================
   Loading & Animation
   ============================================ */
.loading-spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--ms-border-normal);
  border-top-color: var(--ms-primary-normal);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.fade-in {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ============================================
   Toast Notification
   ============================================ */
#toast-container {
  position: absolute;
  bottom: calc(var(--ms-bottom-nav-height) + var(--ms-spacing-md));
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1000;
  pointer-events: none;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--ms-radius-md);
  background-color: var(--ms-gray-900);
  color: var(--ms-static-white);
  font-size: 14px;
  font-weight: 500;
  pointer-events: auto;
  animation: toastIn 0.3s ease;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--ms-spacing-xl);
  text-align: center;
}

.empty-state-icon {
  width: 80px;
  height: 80px;
  margin-bottom: var(--ms-spacing-md);
  color: var(--ms-label-alternative);
}

.empty-state-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--ms-label-strong);
  margin-bottom: var(--ms-spacing-xs);
}

.empty-state-desc {
  font-size: 14px;
  color: var(--ms-label-alternative);
}