/* OTOPOSTER Core Design System (Vanilla CSS) */
/* Sesuai spesifikasi 07-UI-UX.md:
   Day: putih + teks hitam + tombol hitam/teks putih.
   Night: hitam + teks putih + tombol putih/teks hitam.
*/

:root, [data-theme="night"] {
    --bg-page: #000000;
    --bg-surface: #0e0e0e;
    --bg-card: #141414;
    --border-color: #242424;
    --text-main: #ffffff;
    --text-muted: #888888;
    --btn-primary-bg: #ffffff;
    --btn-primary-text: #000000;
    --btn-secondary-bg: #1c1c1c;
    --btn-secondary-text: #ffffff;
    --btn-secondary-border: #333333;
    --nav-active-bg: #222222;
    --badge-bg: #1f1f1f;
    --badge-text: #cccccc;
    --danger: #ff4d4f;
    --success: #52c41a;
    --warning: #faad14;
}

[data-theme="day"] {
    --bg-page: #ffffff;
    --bg-surface: #f7f7f8;
    --bg-card: #ffffff;
    --border-color: #e5e5e5;
    --text-main: #000000;
    --text-muted: #666666;
    --btn-primary-bg: #000000;
    --btn-primary-text: #ffffff;
    --btn-secondary-bg: #f0f0f0;
    --btn-secondary-text: #000000;
    --btn-secondary-border: #d9d9d9;
    --nav-active-bg: #e8e8e8;
    --badge-bg: #f0f0f0;
    --badge-text: #333333;
    --danger: #cf1322;
    --success: #389e0d;
    --warning: #d48806;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-page);
    color: var(--text-main);
    line-height: 1.5;
    transition: background-color 0.2s ease, color 0.2s ease;
    min-height: 100vh;
}

/* Layout Shell */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-logo {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-main);
    text-decoration: none;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
    transition: all 0.15s ease;
}

.nav-item:hover {
    background-color: var(--nav-active-bg);
    color: var(--text-main);
}

.nav-item.active {
    background-color: var(--nav-active-bg);
    color: var(--text-main);
    font-weight: 600;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* Topbar */
.topbar {
    height: 64px;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.topbar-left, .topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.workspace-select {
    padding: 6px 12px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    background-color: var(--badge-bg);
    color: var(--badge-text);
    border: 1px solid var(--border-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: opacity 0.15s ease, background-color 0.15s ease;
    border: 1px solid transparent;
}

.btn:hover {
    opacity: 0.9;
}

.btn-primary {
    background-color: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    border-color: var(--btn-primary-bg);
}

.btn-secondary {
    background-color: var(--btn-secondary-bg);
    color: var(--btn-secondary-text);
    border-color: var(--btn-secondary-border);
}

.btn-icon {
    padding: 8px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 6px;
    cursor: pointer;
}

/* Impersonation Banner */
.impersonation-banner {
    background-color: #8c5000;
    color: #ffffff;
    padding: 8px 24px;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.impersonation-banner button {
    background-color: #ffffff;
    color: #000000;
    border: none;
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 12px;
    cursor: pointer;
}

/* Page Content */
.page-container {
    padding: 32px 24px;
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 24px;
}

.grid-cols-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 13px;
    border: 1px solid transparent;
}

.alert-success {
    background-color: rgba(82, 196, 26, 0.1);
    border-color: var(--success);
    color: var(--success);
}

.alert-warning {
    background-color: rgba(250, 173, 20, 0.1);
    border-color: var(--warning);
    color: var(--warning);
}

.alert-danger {
    background-color: rgba(255, 77, 79, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

/* Mobile Responsive */
.mobile-menu-toggle {
    display: none;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    .sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        z-index: 100;
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 90;
    }
    .sidebar-overlay.active {
        display: block;
    }
}