/* ============================================
   FortuneAI - CSS
   ============================================ */

/* ---------- CSS Variables (Light Mode) ---------- */
:root {
  --bg: #f8f9fa;
  --bg-card: #ffffff;
  --text: #1a1a2e;
  --text-secondary: #6c757d;
  --accent: #6c5ce7;
  --accent-hover: #5a4bd1;
  --border: #e9ecef;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --header-bg: rgba(255, 255, 255, 0.85);
  --ad-bg: #f0f0f0;
  --input-bg: #ffffff;
  --input-border: #dee2e6;
  --success: #00b894;
  --error: #e17055;
  --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans KR', sans-serif;
  --max-width: 640px;
  --transition: 0.3s ease;
}

/* ---------- Dark Mode ---------- */
[data-theme="dark"] {
  --bg: #0f0f23;
  --bg-card: #1a1a2e;
  --text: #e6e6e6;
  --text-secondary: #a0a0b0;
  --accent: #a29bfe;
  --accent-hover: #6c5ce7;
  --border: #2d2d44;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.4);
  --header-bg: rgba(15, 15, 35, 0.9);
  --ad-bg: #16162a;
  --input-bg: #16162a;
  --input-border: #2d2d44;
}

/* ---------- Reset ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  min-height: 100vh;
}

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-select {
  font-family: var(--font-main);
  font-size: 0.85rem;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--text);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.theme-toggle {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: border-color var(--transition), background var(--transition);
}

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

/* ---------- Main ---------- */
.main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px 40px;
}

/* ---------- Hero ---------- */
.hero {
  text-align: center;
  padding: 48px 0 24px;
}

.hero h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
  line-height: 1.3;
}

.hero-sub {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 16px;
}

.social-proof {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.social-proof strong {
  color: var(--accent);
}

/* ---------- Ad Slots ---------- */
.ad-slot {
  background: var(--ad-bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  margin: 24px 0;
  transition: background var(--transition), border-color var(--transition);
}

.ad-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ---------- Form Section ---------- */
.form-section {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow);
  transition: background var(--transition), box-shadow var(--transition);
}

.form-section h2 {
  font-size: 1.25rem;
  margin-bottom: 24px;
  text-align: center;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text);
}

.form-group input[type="text"],
.form-group select {
  width: 100%;
  font-family: var(--font-main);
  font-size: 1rem;
  padding: 10px 14px;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--text);
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
}

.dob-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 8px;
}

.dob-row select {
  width: 100%;
  font-family: var(--font-main);
  font-size: 1rem;
  padding: 10px 8px;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--text);
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.dob-row select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
}

/* Photo Upload */
.photo-upload {
  position: relative;
}

.photo-preview {
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 32px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.photo-preview:hover {
  border-color: var(--accent);
}

.photo-icon {
  font-size: 2rem;
}

.photo-preview span {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.photo-thumb {
  width: 100%;
  max-height: 240px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  display: block;
}

.photo-remove {
  margin-top: 8px;
  font-family: var(--font-main);
  font-size: 0.85rem;
  padding: 6px 16px;
  background: none;
  border: 1px solid var(--error);
  color: var(--error);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.photo-remove:hover {
  background: var(--error);
  color: #fff;
}

/* Submit Button */
.btn-submit {
  width: 100%;
  font-family: var(--font-main);
  font-size: 1.1rem;
  font-weight: 600;
  padding: 14px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
  transition: background var(--transition), transform 0.15s ease;
  margin-top: 8px;
}

.btn-submit:hover {
  background: var(--accent-hover);
}

.btn-submit:active {
  transform: scale(0.98);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ---------- Loading ---------- */
.loading-section {
  text-align: center;
  padding: 60px 20px;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 20px;
}

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

.loading-text {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.loading-sub {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ---------- Results ---------- */
.results-section {
  padding-top: 24px;
}

.results-section h2 {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 24px;
}

.result-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  transition: background var(--transition), box-shadow var(--transition);
}

.result-card h3 {
  font-size: 1.1rem;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.card-content {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text);
  white-space: pre-wrap;
}

.card-content p {
  margin-bottom: 8px;
}

.card-content strong {
  color: var(--accent);
}

.advice-card {
  border-left: 4px solid var(--accent);
}

/* ---------- Actions ---------- */
.actions-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.btn-share,
.btn-retry {
  flex: 1;
  min-width: 120px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
  text-align: center;
}

.btn-share:hover,
.btn-retry:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- Error ---------- */
.error-section {
  text-align: center;
  padding: 40px 20px;
}

.error-text {
  font-size: 1rem;
  color: var(--error);
  margin-bottom: 16px;
}

/* ---------- Footer ---------- */
.footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 20px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
}

.footer p {
  margin-bottom: 6px;
}

.copyright {
  margin-top: 8px;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--text);
  color: var(--bg);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  z-index: 999;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.4rem;
  }

  .hero-sub {
    font-size: 0.9rem;
  }

  .form-section {
    padding: 24px 16px;
  }

  .result-card {
    padding: 20px 16px;
  }

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

  .btn-share,
  .btn-retry {
    min-width: 100%;
  }
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  :root {
    --max-width: 680px;
  }
}