/* ==========================================================================
   AdminLTE Style - Minimalist Dark Architecture (No Emojis, Crisp & Fast)
   ========================================================================== */

:root {
    --bg-body: #1e222d;
    --bg-sidebar: #181b24;
    --bg-sidebar-hover: #222634;
    --bg-card: #252a37;
    --bg-header: #252a37;
    --bg-input: #1a1d26;
    --border-color: #343a40;
    --border-subtle: #2d3240;
    
    --text-primary: #ffffff;
    --text-secondary: #c2c7d0;
    --text-muted: #869099;
    
    --brand-primary: #007bff;
    --brand-primary-hover: #0069d9;
    --brand-success: #28a745;
    --brand-warning: #ffc107;
    --brand-danger: #dc3545;
    --brand-info: #17a2b8;

    --font-stack: "Source Sans Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --sidebar-width: 250px;
    --topbar-height: 57px;
    --radius: 4px;
}

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

body {
    background-color: var(--bg-body);
    color: var(--text-secondary);
    font-family: var(--font-stack);
    font-size: 14px;
    line-height: 1.43;
    display: flex;
    min-height: 100vh;
}

/* Layout */
.app-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

/* Sidebar (AdminLTE style) */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    padding: 0 16px;
    border-bottom: 1px solid var(--border-subtle);
    background-color: var(--bg-sidebar);
}

.brand-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.brand-title span {
    color: var(--brand-primary);
}

.sidebar-user {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-meta {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 13px;
}

.user-role {
    font-size: 11px;
    color: var(--brand-primary);
    text-transform: uppercase;
    font-weight: 700;
}

.sidebar-nav {
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex-grow: 1;
}

.nav-header {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 10px 12px 4px 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 9px 12px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 400;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.nav-link:hover {
    background-color: var(--bg-sidebar-hover);
    color: var(--text-primary);
}

.nav-link.active {
    background-color: var(--brand-primary);
    color: #ffffff;
    font-weight: 600;
}

/* Main Area */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.topbar {
    height: var(--topbar-height);
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.search-trigger {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 6px 12px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    width: 280px;
    font-size: 13px;
}

.search-trigger:hover {
    border-color: var(--brand-primary);
    color: var(--text-secondary);
}

.kbd {
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 10px;
    margin-left: auto;
    color: var(--text-muted);
}

.content-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Small Info Boxes (AdminLTE classic) */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.info-box {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    position: relative;
    border-top: 3px solid var(--brand-primary);
}

.info-box.info-success { border-top-color: var(--brand-success); }
.info-box.info-warning { border-top-color: var(--brand-warning); }
.info-box.info-danger { border-top-color: var(--brand-danger); }
.info-box.info-info { border-top-color: var(--brand-info); }

.info-box-text {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
}

.info-box-number {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 4px;
}

/* Cards & Tables */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    box-shadow: 0 0 1px rgba(0,0,0,.125), 0 1px 3px rgba(0,0,0,.2);
}

.card-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.card-body {
    padding: 16px;
}

.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th {
    background-color: #1f232e;
    padding: 10px 14px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-subtle);
}

td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-size: 13px;
}

tr:hover td {
    background-color: rgba(255,255,255,0.03);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-success { background: #28a745; color: #ffffff; }
.badge-warning { background: #ffc107; color: #1f2d3d; }
.badge-danger { background: #dc3545; color: #ffffff; }
.badge-primary { background: #007bff; color: #ffffff; }
.badge-secondary { background: #6c757d; color: #ffffff; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    line-height: 1.4;
    transition: background-color 0.15s ease;
}

.btn-primary { background-color: var(--brand-primary); color: #fff; border-color: var(--brand-primary); }
.btn-primary:hover { background-color: var(--brand-primary-hover); }
.btn-secondary { background-color: #343a40; border-color: #4b545c; color: var(--text-secondary); }
.btn-secondary:hover { background-color: #4b545c; color: #fff; }
.btn-danger { background-color: var(--brand-danger); border-color: var(--brand-danger); color: #fff; }
.btn-danger:hover { background-color: #c82333; }
.btn-sm { padding: 3px 8px; font-size: 11px; }

/* Form Controls */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
}

.form-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-control {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 7px 10px;
    border-radius: var(--radius);
    font-size: 13px;
    outline: none;
}

.form-control:focus {
    border-color: var(--brand-primary);
}

/* Modals */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

.modal-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 16px 20px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 15px;
}

/* Toast System */
.toast-container {
    position: fixed;
    top: 15px;
    right: 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 2000;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 10px 14px;
    border-radius: var(--radius);
    color: var(--text-primary);
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
    font-size: 13px;
}

.toast.toast-success { border-left: 4px solid var(--brand-success); }
.toast.toast-danger { border-left: 4px solid var(--brand-danger); }