/* ─── Theme Variables ─── */
:root {
    --bg: #0c0a10;
    --text: #e0d6d0;
    --text-secondary: #b8a8a0;
    --text-muted: #8a7a72;
    --text-dim: #6a5a52;
    --accent: #c47a7a;
    --accent-light: #e8a0a0;
    --accent-hover: #d48a8a;
    --accent-hover2: #b86a6a;
    --accent-dark: #a05a5a;
    --panel: rgba(20, 16, 24, 0.92);
    --panel-light: rgba(20, 16, 24, 0.85);
    --input-bg: rgba(12, 10, 16, 0.8);
    --input-option-bg: #16121c;
    --border: rgba(196, 122, 122, 0.2);
    --border-hover: rgba(196, 122, 122, 0.45);
    --border-focus: rgba(196, 122, 122, 0.6);
    --border-light: rgba(196, 122, 122, 0.12);
    --border-faint: rgba(196, 122, 122, 0.08);
    --accent-bg: rgba(196, 122, 122, 0.1);
    --accent-bg-hover: rgba(196, 122, 122, 0.07);
    --accent-bg-strong: rgba(196, 122, 122, 0.15);
    --accent-bg-stronger: rgba(196, 122, 122, 0.22);
    --accent-bg-choice: rgba(196, 122, 122, 0.28);
    --accent-border: rgba(196, 122, 122, 0.25);
    --accent-border-strong: rgba(196, 122, 122, 0.35);
    --error-bg: rgba(180, 60, 60, 0.15);
    --error-border: rgba(180, 60, 60, 0.3);
    --error-text: #e0a0a0;
    --delete-hover: #e07070;
    --shadow: rgba(196, 122, 122, 0.25);
    --stars-opacity: 1;
    --btn-text: #0c0a10;
}

[data-theme="light"] {
    --bg: #f8f2f0;
    --text: #2a2025;
    --text-secondary: #5a4a50;
    --text-muted: #7a6a70;
    --text-dim: #9a8a90;
    --accent: #a05a5a;
    --accent-light: #c47a7a;
    --accent-hover: #b06a6a;
    --accent-hover2: #a05a5a;
    --accent-dark: #8a4a4a;
    --panel: rgba(255, 248, 246, 0.95);
    --panel-light: rgba(255, 248, 246, 0.9);
    --input-bg: rgba(255, 255, 255, 0.9);
    --input-option-bg: #fff6f4;
    --border: rgba(160, 90, 90, 0.2);
    --border-hover: rgba(160, 90, 90, 0.4);
    --border-focus: rgba(160, 90, 90, 0.6);
    --border-light: rgba(160, 90, 90, 0.12);
    --border-faint: rgba(160, 90, 90, 0.08);
    --accent-bg: rgba(160, 90, 90, 0.07);
    --accent-bg-hover: rgba(160, 90, 90, 0.05);
    --accent-bg-strong: rgba(160, 90, 90, 0.1);
    --accent-bg-stronger: rgba(160, 90, 90, 0.18);
    --accent-bg-choice: rgba(160, 90, 90, 0.22);
    --accent-border: rgba(160, 90, 90, 0.25);
    --accent-border-strong: rgba(160, 90, 90, 0.35);
    --error-bg: rgba(180, 60, 60, 0.08);
    --error-border: rgba(180, 60, 60, 0.2);
    --error-text: #a03030;
    --delete-hover: #c03030;
    --shadow: rgba(160, 90, 90, 0.2);
    --stars-opacity: 0;
    --btn-text: #fff6f4;
}

/* ─── Color scheme for native UI ─── */
:root { color-scheme: dark; }
[data-theme="light"] { color-scheme: light; }

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

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background 0.5s, color 0.5s;
}

/* ─── Stars Background ─── */
.stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: var(--stars-opacity);
    transition: opacity 0.5s;
}

.stars::before, .stars::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(196, 122, 122, 0.6);
    border-radius: 50%;
    box-shadow:
        25px 50px 0 rgba(196,140,140,0.25),
        100px 120px 0 rgba(255,200,200,0.15),
        200px 80px 0 rgba(196,140,140,0.3),
        350px 200px 0 rgba(255,220,220,0.15),
        500px 50px 0 rgba(196,140,140,0.2),
        650px 180px 0 rgba(255,200,200,0.12),
        750px 100px 0 rgba(196,140,140,0.25),
        900px 250px 0 rgba(255,220,220,0.15),
        150px 300px 0 rgba(196,140,140,0.2),
        450px 350px 0 rgba(255,200,200,0.2),
        600px 400px 0 rgba(196,140,140,0.15),
        800px 50px 0 rgba(255,220,220,0.12),
        50px 450px 0 rgba(196,140,140,0.2),
        300px 500px 0 rgba(255,200,200,0.15),
        700px 450px 0 rgba(196,140,140,0.2),
        950px 150px 0 rgba(255,220,220,0.2),
        1100px 80px 0 rgba(196,140,140,0.15),
        1200px 300px 0 rgba(255,200,200,0.12);
    animation: twinkle 4s ease-in-out infinite alternate;
}

.stars::after {
    width: 1px;
    height: 1px;
    box-shadow:
        75px 150px 0 rgba(255,200,200,0.15),
        180px 250px 0 rgba(196,140,140,0.2),
        320px 100px 0 rgba(255,220,220,0.12),
        480px 300px 0 rgba(196,140,140,0.18),
        620px 50px 0 rgba(255,200,200,0.15),
        780px 350px 0 rgba(196,140,140,0.2),
        900px 200px 0 rgba(255,220,220,0.12),
        1050px 400px 0 rgba(196,140,140,0.15),
        250px 420px 0 rgba(255,200,200,0.18),
        550px 280px 0 rgba(196,140,140,0.15);
    animation: twinkle 6s ease-in-out infinite alternate-reverse;
}

@keyframes twinkle {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}

/* ─── Layout ─── */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
    position: relative;
    z-index: 1;
}

/* ─── Header ─── */
header {
    text-align: center;
    margin-bottom: 50px;
}

header h1 {
    font-size: 2.8em;
    color: var(--accent);
    margin-top: 50px;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

header p {
    color: var(--text-muted);
    font-style: italic;
    font-size: 1.1em;
}

/* ─── Navigation ─── */
.site-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-faint);
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95em;
    padding: 10px 4px;
    border-bottom: 2px solid transparent;
    transition: color 0.3s, border-color 0.3s;
}

.nav-links a:hover {
    color: var(--accent);
}

.nav-links a.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9em;
    color: var(--text-secondary);
}

.nav-right .username { color: var(--accent); font-weight: 600; }
.nav-right button, .btn-admin { background: none; border: 1px solid var(--border); color: var(--text-secondary); padding: 4px 12px; border-radius: 6px; cursor: pointer; font-size: 0.85em; font-family: inherit; text-decoration: none; text-align: center; }
.nav-right button:hover, .btn-admin:hover { border-color: var(--accent); color: var(--accent); }
.nav-actions { display: flex; flex-direction: column; gap: 4px; }

.nav-login {
    color: var(--accent);
    cursor: pointer;
    font-size: 0.95em;
    padding: 6px 16px;
    border: 1px solid var(--accent-border);
    border-radius: 6px;
    transition: background 0.3s, color 0.3s;
}

.nav-login:hover {
    background: var(--accent-bg);
}

/* ─── Forms ─── */
.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.95em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--input-bg);
    border: 1px solid var(--accent-border);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
    font-size: 1em;
    transition: border-color 0.3s, background 0.5s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--border-focus);
}

.form-group select option {
    background: var(--input-option-bg);
    color: var(--text);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* ─── Buttons ─── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: var(--btn-text);
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1.05em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 0.5px;
}

.btn:hover {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent-hover2));
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--shadow);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary {
    background: var(--accent-bg-strong);
    color: var(--accent);
    border: 1px solid var(--accent-border);
}

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

.btn-center {
    display: flex;
    justify-content: center;
    margin-top: 30px;
}

/* ─── Theme Toggle ─── */
.theme-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 100;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2em;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.theme-toggle:hover {
    border-color: var(--accent);
    transform: scale(1.1);
}

/* ─── Auth UI ─── */
.user-bar { display: flex; align-items: center; justify-content: flex-end; gap: 12px; padding: 8px 0; font-size: 0.9em; color: var(--text-secondary); }
.user-bar .username { color: var(--accent); font-weight: 600; }
.user-bar button { background: none; border: 1px solid var(--border); color: var(--text-secondary); padding: 4px 12px; border-radius: 6px; cursor: pointer; font-size: 0.85em; }
.user-bar button:hover { border-color: var(--accent); color: var(--accent); }

.auth-modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: flex; align-items: center; justify-content: center; z-index: 1000; backdrop-filter: blur(4px); }
.auth-modal { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 32px; width: 100%; max-width: 400px; box-shadow: 0 8px 32px rgba(0,0,0,0.3); }
.auth-modal h2 { margin: 0 0 24px; text-align: center; font-size: 1.4em; color: var(--text); }
.auth-tabs { display: flex; gap: 0; margin-bottom: 24px; border-bottom: 1px solid var(--border); }
.auth-tab { flex: 1; padding: 10px; text-align: center; cursor: pointer; border: none; background: none; color: var(--text-muted); font-size: 1em; border-bottom: 2px solid transparent; font-family: inherit; }
.auth-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.auth-tab:hover:not(.active) { color: var(--text-secondary); }
.auth-modal .form-group { margin-bottom: 16px; }
.auth-modal label { display: block; margin-bottom: 6px; font-size: 0.9em; color: var(--text-secondary); }
.auth-modal input { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--input-bg); color: var(--text); font-size: 1em; box-sizing: border-box; font-family: inherit; }
.auth-modal input:focus { outline: none; border-color: var(--border-focus); }
.auth-modal .btn { width: 100%; margin-top: 8px; }
.auth-error { color: var(--error-text); font-size: 0.85em; margin-top: 8px; text-align: center; min-height: 1.2em; }
.auth-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: var(--text-muted); font-size: 0.85em; }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.btn-google { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; padding: 10px; border: 1px solid var(--border); border-radius: 8px; background: none; color: var(--text); font-size: 0.95em; cursor: pointer; font-family: inherit; }
.btn-google:hover { border-color: var(--border-hover); }
.auth-skip, .forgot-password-link { text-align: center; margin-top: 12px; }
.auth-skip a, .forgot-password-link a { color: var(--text-muted); font-size: 0.85em; cursor: pointer; text-decoration: underline; }
.auth-skip a:hover, .forgot-password-link a:hover { color: var(--accent); }

/* ─── Badges ─── */
.plan-badge {
    display: inline-block;
    background: var(--accent-bg);
    border: 1px solid var(--accent-border);
    padding: 2px 12px;
    border-radius: 12px;
    color: var(--accent);
    font-size: 0.9em;
    text-transform: capitalize;
}

/* ─── Billing ─── */
.quota-badge { font-size: 0.8em; color: var(--text-muted); padding: 2px 8px; border: 1px solid var(--border); border-radius: 12px; cursor: pointer; }
.quota-badge:hover { border-color: var(--accent); color: var(--accent); }
.quota-badge.warning { color: var(--error-text); border-color: var(--error-border); }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin: 20px 0; }
.pricing-card { border: 1px solid var(--border); border-radius: 12px; padding: 20px; text-align: center; cursor: pointer; transition: border-color 0.2s; }
.pricing-card:hover { border-color: var(--accent); }
.pricing-card.current { border-color: var(--accent); background: var(--accent-bg); }
.pricing-card .plan-name { font-size: 1.1em; font-weight: 600; color: var(--text); }
.pricing-card .plan-price { font-size: 1.6em; font-weight: 700; color: var(--accent); margin: 8px 0; }
.pricing-card .plan-price small { font-size: 0.5em; color: var(--text-muted); }
.pricing-card .plan-chapters { font-size: 0.9em; color: var(--text-secondary); }
.quota-exceeded { background: var(--error-bg); border: 1px solid var(--error-border); border-radius: 12px; padding: 20px; text-align: center; margin: 16px 0; }
.quota-exceeded p { color: var(--error-text); margin-bottom: 12px; }

/* Upsell panel (replaces quota-exceeded) */
.quota-upsell {
    background: var(--panel);
    border: 1px solid var(--accent-border);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    margin: 16px 0;
}
.upsell-hook {
    color: var(--accent);
    font-size: 1.2em;
    font-style: italic;
    margin-bottom: 8px;
}
.upsell-text {
    color: var(--text-secondary);
    font-size: 0.95em;
    margin-bottom: 20px;
}
.upsell-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}
.upsell-reassurance {
    color: var(--text-dim);
    font-size: 0.8em;
    margin-top: 16px;
    font-style: italic;
}

/* ─── Footer ─── */
.site-footer {
    text-align: center;
    padding: 24px 20px;
    font-size: 0.82em;
    color: var(--text-dim);
    position: relative;
    z-index: 1;
}

.site-footer a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

.site-footer a:hover {
    color: var(--accent);
}

.footer-sep {
    margin: 0 8px;
}

/* ─── Error ─── */
.error-box {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: 8px;
    padding: 16px 20px;
    margin-bottom: 20px;
    color: var(--error-text);
    font-size: 0.95em;
}

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

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

@keyframes dots {
    0% { content: '.'; }
    33% { content: '..'; }
    66% { content: '...'; }
}

/* ─── Responsive ─── */
@media (max-width: 600px) {
    header h1 { font-size: 2em; }
    .auth-modal { margin: 16px; padding: 24px; }
}