/* ===== Astro OS — Dark Premium Aesthetic ===== */

:root {
    --bg-primary: #0a0a1a;
    --bg-secondary: #111128;
    --bg-card: #1a1a2e;
    --bg-input: #16162a;
    --text-primary: #e8e8f0;
    --text-secondary: #a0a0b8;
    --text-muted: #6a6a80;
    --accent: #7c5cbf;
    --accent-hover: #9370db;
    --accent-glow: rgba(124, 92, 191, 0.3);
    --border: #2a2a40;
    --success: #4caf50;
    --error: #e53935;
    --gold: #d4af37;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* ===== Layout ===== */
.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 40px 20px;
}

.hero {
    text-align: center;
    padding: 60px 20px 40px;
}

.hero h1 {
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--accent), var(--gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .tagline {
    font-size: 1rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 30px;
}

/* ===== Card ===== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 24px;
}

.card h2 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

/* ===== Form ===== */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

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

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-section-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 20px 0;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-section-toggle input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
}

.partner-section {
    display: none;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    margin-top: 16px;
}

.partner-section.visible {
    display: block;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: var(--accent);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    width: 100%;
}

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

.btn-gold {
    background: linear-gradient(135deg, var(--gold), #c49b30);
    color: #0a0a1a;
    width: 100%;
}

.btn-gold:hover {
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.4);
}

/* ===== Loading ===== */
.loading {
    display: none;
    text-align: center;
    padding: 40px;
}

.loading.active {
    display: block;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

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

.loading p {
    color: var(--text-secondary);
    font-style: italic;
}

/* ===== Preview Results ===== */
.preview-section {
    display: none;
}

.preview-section.active {
    display: block;
}

.big-three {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.big-three-item {
    text-align: center;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.big-three-item .label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.big-three-item .sign {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.core-numbers {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.core-number-item {
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.core-number-item .label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.core-number-item .value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
}

.zodiac-badge {
    text-align: center;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border);
    margin-bottom: 24px;
}

.zodiac-badge .animal {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--gold);
}

.zodiac-badge .element {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.interpretation-text {
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border-left: 3px solid var(--accent);
    margin-bottom: 16px;
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-primary);
    white-space: pre-wrap;
}

/* ===== CTA ===== */
.cta-section {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, var(--bg-card), #1e1e3a);
    border: 1px solid var(--gold);
    border-radius: 12px;
    margin-top: 30px;
}

.cta-section h3 {
    color: var(--gold);
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.cta-section p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.price-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.pricing-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.pricing-card-featured {
    border-color: var(--gold);
    box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.2);
}

.pricing-kicker {
    color: var(--gold);
    font-size: 0.8rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.pricing-copy {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.upgrade-banner {
    border-color: var(--gold);
    background: linear-gradient(135deg, var(--bg-card), #1f1a0e);
}

/* ===== Success Page ===== */
.success-icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

.success-message {
    text-align: center;
}

.success-message h2 {
    color: var(--success);
    border: none;
    padding: 0;
}

/* ===== Error ===== */
.error-message {
    background: rgba(229, 57, 53, 0.1);
    border: 1px solid var(--error);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--error);
    font-size: 0.9rem;
    margin-bottom: 16px;
    display: none;
}

.error-message.visible {
    display: block;
}

/* ===== Footer ===== */
.site-footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
    .hero h1 { font-size: 1.8rem; }
    .big-three { grid-template-columns: 1fr; }
    .core-numbers { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .card { padding: 20px; }
}