/* Newsletter Standalone - Dark Mode Theme */

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

:root {
    --bg-primary: #0f0f1a;
    --bg-card: #1a1a2e;
    --bg-input: #16213e;
    --border: rgba(139, 92, 246, 0.2);
    --border-focus: rgba(139, 92, 246, 0.6);
    --text: #e0e0f0;
    --text-muted: #a0a0b8;
    --text-heading: #ffffff;
    --primary: #8b5cf6;
    --primary-hover: #7c3aed;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --gradient-primary: linear-gradient(135deg, #8b5cf6, #6366f1);
    --gradient-bg: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

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

.container {
    max-width: 560px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Card */
.card {
    background: var(--gradient-bg);
    border-radius: 16px;
    padding: 40px;
    border: 1px solid var(--border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Logo / Header */
.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo-icon {
    font-size: 48px;
    margin-bottom: 10px;
}

.logo h1 {
    color: var(--text-heading);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 5px;
}

.logo p {
    color: var(--text-muted);
    font-size: 14px;
}

/* Form elements */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-size: 15px;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

.form-input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.form-input::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-danger {
    background: var(--error);
    color: #fff;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 2px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--border-focus);
    background: rgba(139, 92, 246, 0.1);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

/* Alerts */
.alert {
    padding: 14px 18px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    border: 1px solid;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--error);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
    color: var(--warning);
}

.alert-info {
    background: rgba(139, 92, 246, 0.1);
    border-color: rgba(139, 92, 246, 0.3);
    color: var(--primary);
}

/* Checkbox list (newsletters) */
.checkbox-list {
    list-style: none;
    padding: 0;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.checkbox-item:hover {
    border-color: var(--border-focus);
    background: rgba(139, 92, 246, 0.05);
}

.checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
}

.checkbox-item .nl-name {
    font-weight: 600;
    color: var(--text-heading);
    font-size: 15px;
}

.checkbox-item .nl-desc {
    font-size: 12px;
    color: var(--text-muted);
}

/* Loading spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Status result */
.result-icon {
    font-size: 64px;
    text-align: center;
    margin-bottom: 16px;
}

.result-text {
    text-align: center;
    font-size: 16px;
    color: var(--text);
    margin-bottom: 20px;
}

/* Footer */
.page-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 12px;
    color: var(--text-muted);
}

.page-footer a {
    color: var(--primary);
    text-decoration: none;
}

.page-footer a:hover {
    text-decoration: underline;
}

/* Separator */
.separator {
    border: none;
    border-top: 1px solid var(--border);
    margin: 24px 0;
}

/* Confirm dialog */
.confirm-box {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    margin-top: 20px;
}

.confirm-box p {
    color: var(--error);
    margin-bottom: 15px;
    font-weight: 600;
}

.btn-group {
    display: flex;
    gap: 10px;
    justify-content: center;
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 20px 15px;
    }

    .card {
        padding: 24px;
    }

    .logo h1 {
        font-size: 20px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }
}