:root {
    --bg: #0d0d0d;
    --surface: #1c1c1e;
    --surface2: #2c2c2e;
    --accent: #0a84ff;
    --accent2: #30d158;
    --danger: #ff453a;
    --warning: #ff9f0a;
    --text: #ffffff;
    --text2: #ffffff;
    --text3: #ffffff;
    --border: #38383a;
    --tab-h: 56px;
    --safe-bottom: env(safe-area-inset-bottom, 0px);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    -webkit-font-smoothing: antialiased;
    background: var(--bg);
    color: var(--text);
}

#app {
    display: flex;
    flex-direction: column;
    height: 100dvh;
}

/* Header */
#header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
}

#header h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

/* Content */
#content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 16px;
}

/* Bottom Tab Nav */
#tabs {
    display: flex;
    background: var(--surface);
    border-top: 1px solid var(--border);
    height: calc(var(--tab-h) + var(--safe-bottom));
    padding-bottom: var(--safe-bottom);
}

.tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    text-decoration: none;
    color: var(--text3);
    font-size: 0.65rem;
    font-weight: 600;
    padding: 6px 0;
    transition: color 0.2s;
}

.tab.active { color: var(--accent); }
.tab:hover { color: var(--text2); }

/* Flash messages */
.flash {
    padding: 12px 14px;
    border-radius: 10px;
    margin-bottom: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.flash-success { background: #248a3d; color: #ffffff; }
.flash-error   { background: #c0392b; color: #ffffff; }
.flash-warning { background: #c47a00; color: #ffffff; }

/* Cards */
.card {
    background: var(--surface);
    border-radius: 12px;
    margin-bottom: 2px;
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    cursor: pointer;
}

.card-title {
    font-size: 0.95rem;
    font-weight: 600;
    flex: 1;
}

.card-meta {
    font-size: 0.85rem;
    color: var(--text2);
    margin-left: 12px;
    white-space: nowrap;
}

.card-chevron {
    color: var(--text3);
    margin-left: 8px;
    transition: transform 0.2s;
    font-size: 0.9rem;
}

.card.expanded .card-chevron { transform: rotate(90deg); }
.card.expanded { border: 1px solid var(--border); }

.card-body {
    display: none;
    padding: 0 14px 14px;
}

.card.expanded .card-body { display: block; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 12px;
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
    text-decoration: none;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover { opacity: 0.85; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-primary { background: var(--accent); width: 100%; }
.btn-success { background: var(--accent2); width: 100%; }
.btn-danger { background: var(--danger); }
.btn-surface { background: #48484a; color: var(--text); }
.btn-back { background: #6E4AC7; color: var(--text); white-space: nowrap; }

.btn-sm {
    border-radius: 8px;
    padding: 7px 14px;
    font-size: 0.8rem;
    font-weight: 600;
}

.btn-row {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

/* Forms */
.field-group {
    background: var(--surface);
    border-radius: 14px;
    margin-bottom: 16px;
    overflow: hidden;
}

.field-group-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text);
    letter-spacing: 0.8px;
    padding: 16px 14px 8px;
}

.field-row {
    display: flex;
    align-items: center;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
}

.field-row:last-child { border-bottom: none; }

.field-row label {
    width: 130px;
    flex-shrink: 0;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.field-row input,
.field-row select,
.field-row textarea {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    padding: 4px 0;
}

.field-row input::placeholder,
.field-row textarea::placeholder {
    color: var(--text3);
}

.field-row select {
    appearance: auto;
    -webkit-appearance: menulist;
}

.field-row select option {
    background: var(--surface);
    color: var(--text);
}

.field-row textarea {
    min-height: 60px;
    resize: vertical;
}

/* Checkbox rows */
.check-row {
    display: flex;
    align-items: center;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}

.check-row:last-child { border-bottom: none; }

.check-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
    flex-shrink: 0;
}

.check-row label {
    font-size: 0.9rem;
    cursor: pointer;
    flex: 1;
}

.check-row .check-meta {
    font-size: 0.75rem;
    color: var(--text3);
}

/* Status badges */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-active { background: rgba(48, 209, 88, 0.15); color: var(--accent2); }
.badge-inactive { background: rgba(255, 69, 58, 0.15); color: var(--danger); }
.badge-role { background: rgba(10, 132, 255, 0.15); color: var(--accent); }

/* Stat cards */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.stat-card {
    background: var(--surface);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

/* Section header */
.section-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text);
    letter-spacing: 0.8px;
    margin: 20px 0 10px;
}

/* Login page */
.login-container {
    max-width: 360px;
    margin: 60px auto;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 24px;
}

/* App toggle cards */
.app-card {
    background: var(--surface);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.app-card-info { flex: 1; }
.app-card-name { font-size: 0.95rem; font-weight: 600; }
.app-card-desc { font-size: 0.8rem; color: var(--text3); margin-top: 2px; }

/* Hamburger — hidden on desktop */
.nav-hamburger { display: none; }
.nav-links { display: none; }

@media (max-width: 768px) {
    #tabs { display: none; }

    #content {
        height: auto;
        padding-bottom: 16px;
    }

    .nav-hamburger {
        display: flex;
        flex-direction: column;
        gap: 5px;
        background: none;
        border: none;
        cursor: pointer;
        padding: 4px;
    }

    .nav-hamburger span {
        display: block;
        width: 24px;
        height: 2px;
        background: white;
        border-radius: 2px;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 56px;
        right: 0;
        width: max-content;
        min-width: 160px;
        background: var(--surface);
        padding: 0.25rem 0 0.75rem;
        z-index: 1000;
        gap: 0;
        box-shadow: 0 4px 12px rgba(0,0,0,0.5);
        list-style: none;
        border-radius: 0 0 0 10px;
    }

    .nav-links.open { display: flex; }

    .nav-links li {
        border-top: 1px solid var(--border);
    }

    .nav-links a {
        display: block;
        padding: 0.75rem 1.75rem;
        font-size: 0.9rem;
        color: var(--text);
        text-decoration: none;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        font-weight: 600;
        white-space: nowrap;
    }

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

    #app { position: relative; }
}