/* pay.aq13r.com Portal · Minimal Carbon-Acid Theme */
:root {
    --bg: #0a0a0a;
    --bg-card: #14141a;
    --bg-card-elevated: #1a1a22;
    --border: #2a2a35;
    --text: #f0f0f0;
    --text-dim: #888;
    --text-faint: #555;
    --accent: #c0ff00;          /* acid */
    --accent-violet: #b87cff;
    --accent-magenta: #ff3da3;
    --danger: #ff4444;
    --ok: #00d97f;
    --radius: 12px;
    --radius-sm: 6px;
    --shadow: 0 8px 32px rgba(0,0,0,0.4);
    --mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
    --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

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

html, body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.5;
    min-height: 100vh;
}

body {
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.page {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.hero {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 48px 40px;
    max-width: 600px;
    width: 100%;
    box-shadow: var(--shadow);
}

.hero.success { border-color: var(--ok); }

.badge {
    display: inline-block;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.15em;
    color: var(--accent);
    background: rgba(192,255,0,0.08);
    border: 1px solid rgba(192,255,0,0.3);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
}

.badge.ok { color: var(--ok); background: rgba(0,217,127,0.08); border-color: rgba(0,217,127,0.3); }

h1 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.subtitle {
    color: var(--text-dim);
    margin-bottom: 32px;
}

.price {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
}
.price strong { color: var(--accent); }
.price .unit { font-size: 22px; font-weight: 400; color: var(--text-dim); }

.disclaimer {
    background: var(--bg-card-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin: 32px 0;
    font-size: 14px;
    color: var(--text-dim);
}
.disclaimer strong { color: var(--text); display: block; margin-bottom: 12px; font-size: 13px; letter-spacing: 0.05em; text-transform: uppercase; }
.disclaimer ul { padding-left: 18px; }
.disclaimer li { margin-bottom: 6px; line-height: 1.5; }
.disclaimer li strong { display: inline; text-transform: none; letter-spacing: normal; color: var(--accent); font-size: inherit; }

.cta-primary {
    display: inline-block;
    background: var(--accent);
    color: var(--bg);
    padding: 16px 32px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 16px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.2s;
    width: 100%;
    text-align: center;
    font-family: var(--sans);
}
.cta-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 16px rgba(192,255,0,0.25); }
.cta-primary:active { transform: translateY(0); }

.cta-hint {
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-faint);
    text-align: center;
}

/* QR for TV */
.qr-block {
    text-align: center;
    margin: 32px 0;
}
.qr-instruction {
    font-size: 18px;
    margin-bottom: 24px;
    color: var(--text);
}
.qr-image {
    width: 280px;
    height: 280px;
    background: white;
    padding: 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}
.qr-url {
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-faint);
}
.qr-url code {
    font-family: var(--mono);
    color: var(--text-dim);
}

/* Form */
.form {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-top: 24px;
}
.form label {
    display: flex;
    flex-direction: column;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.02em;
}
.form input[type="text"],
.form input[type="email"],
.form input[type="password"] {
    margin-top: 6px;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    font-family: var(--sans);
    font-size: 15px;
    transition: border-color 0.15s;
}
.form input:focus {
    outline: none;
    border-color: var(--accent);
}
.form .hint {
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-faint);
    font-weight: 400;
}
.form label.checkbox {
    flex-direction: row;
    align-items: flex-start;
    font-weight: 400;
    color: var(--text-dim);
    font-size: 13px;
    gap: 10px;
    cursor: pointer;
}
.form .checkbox input { margin-top: 3px; accent-color: var(--accent); }
.form .checkbox strong { color: var(--text); }

.error-banner {
    background: rgba(255,68,68,0.08);
    border: 1px solid rgba(255,68,68,0.3);
    color: var(--danger);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    font-size: 14px;
}

.info-box {
    margin-top: 32px;
    background: var(--bg-card-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: left;
}
.info-box p { margin-bottom: 12px; font-size: 14px; }
.info-box ol { padding-left: 20px; }
.info-box li { margin-bottom: 8px; font-size: 14px; color: var(--text-dim); }
.info-box a { color: var(--accent); text-decoration: none; }
.info-box a:hover { text-decoration: underline; }

/* Product list (index) */
.product-list { list-style: none; margin-top: 32px; }
.product-list a {
    display: flex;
    flex-direction: column;
    background: var(--bg-card-elevated);
    border: 1px solid var(--border);
    padding: 20px;
    border-radius: var(--radius-sm);
    color: var(--text);
    text-decoration: none;
    transition: border-color 0.15s, transform 0.1s;
}
.product-list a:hover { border-color: var(--accent); transform: translateY(-1px); }
.product-name { font-size: 18px; font-weight: 600; margin-bottom: 6px; }
.product-meta { font-size: 13px; color: var(--text-dim); font-family: var(--mono); }

/* Footer */
.footer {
    padding: 20px;
    text-align: center;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    letter-spacing: 0.1em;
}
.footer .sep { margin: 0 8px; }

@media (max-width: 480px) {
    .hero { padding: 32px 24px; }
    h1 { font-size: 26px; }
    .price { font-size: 44px; }
    .qr-image { width: 220px; height: 220px; }
}