/* assets/css/style.css - Premium Modern Design */

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary: #10b981;
    --bg-color: #f3f4f6;
    --surface: #ffffff;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --danger: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
}

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

body {
    font-family: 'Sarabun', 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    display: flex;
    min-height: 100vh;
}

/* Glassmorphism Utilities */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
}

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

.sidebar {
    width: 280px;
    background-color: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    z-index: 10;
    transition: all 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.sidebar-header h1 {
    font-size: 1.25rem;
    color: var(--primary);
    font-weight: 700;
}

.sidebar-menu {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.sidebar-menu ul {
    list-style: none;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--text-main);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.sidebar-menu li a:hover, .sidebar-menu li.active > a {
    background-color: rgba(37, 99, 235, 0.05);
    color: var(--primary);
    border-left-color: var(--primary);
}

.sidebar-menu .nav-header {
    padding: 0.5rem 1.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
    margin-top: 1rem;
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.topbar {
    height: 64px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    box-shadow: var(--shadow-sm);
}

.content-wrapper {
    padding: 2rem;
    flex: 1;
    overflow-y: auto;
}

/* Cards */
.card {
    background: var(--surface);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-main);
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Grid for Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px dashed var(--border);
}
.stat-item:last-child {
    border-bottom: none;
}

.stat-value {
    font-weight: 700;
    color: var(--primary);
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn {
    display: inline-block;
    font-family: inherit;
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: 8px;
    transition: all 0.2s ease;
    cursor: pointer;
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Login Page specific */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f9ff 0%, #dbeafe 100%);
    min-height: 100vh;
}

.login-wrapper {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
}

.login-logo {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* Animations */
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-slide-down {
    animation: slideDown 0.5s ease forwards;
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* Utilities */
.text-danger { color: var(--danger); }
.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }