/* Admin Panel — Terminal Aesthetic */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #0a0a0a;
    --surface: #111;
    --hover: #1a1a1a;
    --border: #1e3a1e;
    --accent: #00ff41;
    --fg: #e0e0e0;
    --muted: #888;
    --error: #ff4444;
    --warning: #ffaa00;
    --success: #00cc44;
}

html { font-size: 16px; }
body {
    background: var(--bg);
    color: var(--fg);
    font-family: 'Courier New', 'Consolas', monospace;
    min-height: 100vh;
    line-height: 1.6;
}

/* Login page */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 16px;
}

.login-container {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 28px;
    background: var(--surface);
    max-width: 360px;
    width: 100%;
}

.login-header {
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 4px;
}

.login-header .dollar {
    color: var(--muted);
}

.login-header .title {
    color: var(--accent);
}

.login-subtitle {
    font-size: 13px;
    color: var(--muted);
    text-align: center;
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 4px;
}

.login-form input[type="password"] {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--fg);
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: border-color 0.15s;
}

.login-form input[type="password"]:focus {
    border-color: var(--accent);
}

.login-form button {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--accent);
    border-radius: 4px;
    background: transparent;
    color: var(--accent);
    font-family: inherit;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}

.login-form button:hover {
    background: var(--accent);
    color: #000;
}

.back-link {
    display: block;
    text-align: center;
    font-size: 12px;
    color: var(--muted);
    text-decoration: none;
    margin-top: 16px;
}

.back-link:hover {
    color: var(--accent);
}

/* Flash messages */
.flash {
    padding: 10px 14px;
    margin-bottom: 12px;
    border-radius: 4px;
    font-size: 12px;
    border: 1px solid;
}

.flash-success {
    background: #003300;
    border-color: var(--success);
    color: var(--success);
}

.flash-error {
    background: #330000;
    border-color: var(--error);
    color: var(--error);
}

.flash-warning {
    background: #332200;
    border-color: var(--warning);
    color: var(--warning);
}

/* Admin layout */
.admin-layout {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.admin-header {
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    padding: 10px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-logo {
    color: var(--accent);
    font-weight: bold;
    font-size: 14px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

.header-logo .dollar {
    color: var(--muted);
}

.header-badge {
    font-size: 10px;
    color: var(--muted);
    border: 1px solid var(--border);
    padding: 1px 6px;
    border-radius: 4px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

.header-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    padding: 6px 10px;
    border-radius: 4px;
    font-family: inherit;
    font-size: 12px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
}

.header-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.header-btn:disabled {
    opacity: 0.5;
    cursor: default;
}

.header-logout:hover {
    color: var(--error);
    border-color: var(--error);
}

/* Admin body with sidebar */
.admin-body {
    display: flex;
    flex: 1;
}

.admin-sidebar {
    width: 170px;
    border-right: 1px solid var(--border);
    background: var(--surface);
    flex-shrink: 0;
    display: block;
}

.tab-nav {
    padding: 8px 0;
}

.tab-link {
    display: block;
    padding: 8px 16px;
    font-size: 12px;
    color: var(--muted);
    text-decoration: none;
    transition: all 0.15s;
    border-right: 2px solid transparent;
}

.tab-link:hover {
    color: var(--fg);
    background: var(--hover);
}

.tab-link.active {
    color: var(--accent);
    background: var(--hover);
    border-right-color: var(--accent);
}

.admin-main {
    flex: 1;
    padding: 20px 24px;
    overflow: auto;
}

/* Tab header */
.tab-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.tab-header h2 {
    font-size: 14px;
    font-weight: bold;
    color: var(--accent);
}

.tab-filename {
    font-size: 10px;
    color: var(--muted);
}

.tab-filename code {
    color: var(--accent);
    background: var(--bg);
    padding: 1px 6px;
    border-radius: 3px;
}

/* Form fields */
.settings-form {
    max-width: 560px;
}

.fields-group {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.field label {
    font-size: 12px;
    color: var(--muted);
}

.field-input {
    width: 100%;
    padding: 8px 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--fg);
    font-family: inherit;
    font-size: 13px;
    outline: none;
    transition: border-color 0.15s;
}

.field-input:focus {
    border-color: var(--accent);
}

.field-hint {
    font-size: 10px;
    color: var(--muted);
}

/* Checkbox field */
.field-checkbox {
    flex-direction: row;
    align-items: center;
    gap: 10px;
}

.field-checkbox-input {
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
}

.field-checkbox-input:checked {
    background: var(--accent);
    border-color: var(--accent);
}

.field-checkbox-input:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #000;
    font-size: 12px;
    font-weight: bold;
}

/* Field groups (nested) */
fieldset.field-group {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px;
    background: var(--bg);
}

fieldset.field-group legend {
    font-size: 12px;
    font-weight: bold;
    color: var(--accent);
    padding: 0 6px;
}

.field-group-inline .field-inline {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

/* Form actions */
.form-actions {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.btn-primary {
    background: var(--accent);
    color: #000;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    font-family: inherit;
    font-size: 13px;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.15s;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: default;
}

/* Mobile */
@media (max-width: 639px) {
    .admin-sidebar {
        display: none;
    }

    .admin-main {
        padding: 14px;
    }

    /* Mobile tab bar */
    .mobile-tabs {
        display: flex;
        overflow-x: auto;
        border-bottom: 1px solid var(--border);
        padding: 4px 8px;
        gap: 4px;
        -webkit-overflow-scrolling: touch;
    }

    .mobile-tab {
        white-space: nowrap;
        font-size: 11px;
        padding: 6px 10px;
        border-radius: 4px;
        background: transparent;
        color: var(--muted);
        border: none;
        font-family: inherit;
        cursor: pointer;
        transition: all 0.15s;
        text-decoration: none;
    }

    .mobile-tab.active {
        color: var(--accent);
        background: var(--hover);
    }

    .mobile-tab:hover {
        color: var(--fg);
    }

    .field-group-inline .field-inline {
        grid-template-columns: 1fr;
    }

    .header-btn {
        font-size: 11px;
        padding: 4px 8px;
    }
}

@media (min-width: 640px) {
    .mobile-tabs {
        display: none;
    }
}