/* Brand color is injected per-request via --brand-color / --brand-color-alpha
   custom properties (see the inline :root bootstrap in views/demo-request.ejs).
   --brand-color-alpha carries the legacy "<color>22" 8-digit-hex alpha, since
   CSS var() cannot concatenate an adjacent "22" token at parse time. */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, var(--brand-color) 0%, #2c3e50 100%);
}

.card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 520px;
    overflow: hidden;
    animation: fadeUp 0.5s ease;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.card-header {
    background: linear-gradient(135deg, var(--brand-color), #2c3e50);
    color: white;
    padding: 35px 30px;
    text-align: center;
}

.card-header .logo {
    font-size: 1.1em;
    font-weight: 700;
    letter-spacing: 2px;
    opacity: 0.8;
    margin-bottom: 8px;
}

.card-header h1 {
    font-size: 1.6em;
    font-weight: 600;
    margin-bottom: 6px;
}

.card-header p {
    opacity: 0.85;
    font-size: 0.95em;
    line-height: 1.5;
}

.card-body {
    padding: 30px;
}

/* Tabs for mode switching */
.mode-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 25px;
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid #e9ecef;
}

.mode-tab {
    flex: 1;
    padding: 12px;
    text-align: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9em;
    background: #f8f9fa;
    color: #7f8c8d;
    transition: all 0.3s;
    border: none;
}

.mode-tab.active {
    background: var(--brand-color);
    color: white;
}

.mode-tab:hover:not(.active) {
    background: #e9ecef;
}

/* Form styles */
.form-section { display: none; }
.form-section.active { display: block; }

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 6px;
    font-size: 0.9em;
}

.form-group label .required {
    color: #e74c3c;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1em;
    font-family: inherit;
    transition: border-color 0.3s, box-shadow 0.3s;
    background: #fafbfc;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--brand-color);
    outline: none;
    box-shadow: 0 0 0 3px var(--brand-color-alpha);
    background: white;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    width: 100%;
    padding: 14px;
    background: var(--brand-color);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.05em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 8px;
}

.submit-btn:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Mailto section */
.mailto-section {
    text-align: center;
    padding: 20px 0;
}

.mailto-btn {
    display: inline-block;
    padding: 16px 32px;
    background: var(--brand-color);
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-size: 1.05em;
    font-weight: 600;
    transition: all 0.3s;
}

.mailto-btn:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.mailto-hint {
    margin-top: 12px;
    font-size: 0.85em;
    color: #95a5a6;
}

/* Success/Error states */
.result-message {
    display: none;
    text-align: center;
    padding: 30px 20px;
}

.result-message.show { display: block; }

.result-message .icon {
    font-size: 3em;
    margin-bottom: 12px;
}

.result-message h3 {
    font-size: 1.3em;
    color: #2c3e50;
    margin-bottom: 8px;
}

.result-message p {
    color: #7f8c8d;
    line-height: 1.5;
}

/* Footer */
.card-footer {
    padding: 16px 30px;
    text-align: center;
    border-top: 1px solid #f0f0f0;
    background: #fafbfc;
}

.card-footer a {
    color: #95a5a6;
    text-decoration: none;
    font-size: 0.8em;
}

.card-footer a:hover {
    color: var(--brand-color);
}

/* Spinner */
.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    vertical-align: middle;
    margin-right: 6px;
}

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

/* Error alert */
.alert-error {
    background: #fef2f2;
    border: 1px solid #fca5a5;
    color: #991b1b;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9em;
    margin-bottom: 16px;
    display: none;
}

.alert-error.show { display: block; }

@media (max-width: 480px) {
    .card-header { padding: 25px 20px; }
    .card-header h1 { font-size: 1.3em; }
    .card-body { padding: 20px; }
}

/* Honeypot: visually hidden, tab-skipped — humans never see/fill it */
.hp-trap {
    position: absolute;
    left: -9999px;
    top: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}