/* assets/css/style.css */
:root {
    --primary-gradient: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    --gold-gradient: linear-gradient(135deg, #d4af37 0%, #f9d423 100%);
    --emerald: #2ecc71;
    --dark-bg: #0f0f12;
    --card-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --gold: #d4af37;
}

body {
    background-color: var(--dark-bg);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    margin: 0;
    overflow-x: hidden;
}

.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    transition: transform 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
}

.btn-premium {
    background: var(--primary-gradient);
    border: none;
    color: white;
    border-radius: 8px;
    padding: 10px 20px;
    font-weight: 600;
    transition: opacity 0.3s;
}

.btn-premium:hover {
    opacity: 0.9;
    color: white;
}

.btn-gold {
    background: var(--gold-gradient);
    border: none;
    color: black;
    border-radius: 8px;
    padding: 10px 20px;
    font-weight: 600;
}

.sidebar {
    width: 260px;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: rgba(15, 15, 18, 0.95);
    border-right: 1px solid var(--glass-border);
    z-index: 1000;
    padding-top: 20px;
}

.sidebar-brand {
    font-size: 24px;
    font-weight: 800;
    color: var(--gold);
    text-align: center;
    margin-bottom: 40px;
    display: block;
    text-decoration: none;
}

.sidebar-nav .nav-link {
    color: var(--text-secondary);
    padding: 12px 25px;
    font-weight: 500;
    display: flex;
    align-items: center;
    transition: all 0.3s;
}

.sidebar-nav .nav-link i {
    margin-right: 15px;
    width: 20px;
}

.sidebar-nav .nav-link:hover, .sidebar-nav .nav-link.active {
    color: white;
    background: var(--card-bg);
    border-left: 4px solid var(--gold);
}

.sidebar-nav .collapse .nav-link {
    padding: 6px 25px 6px 45px;
    font-size: 14px;
    border-left: none !important;
}

.sidebar-nav .collapse .nav-link:hover, .sidebar-nav .collapse .nav-link.active {
    background: transparent;
    color: var(--gold);
}

.submenu-arrow {
    transition: transform 0.2s ease;
}

.nav-link[aria-expanded="true"] .submenu-arrow {
    transform: rotate(180deg);
}

.main-content {
    margin-left: 260px;
    padding: 30px;
}

.dashboard-card {
    border-radius: 20px;
    overflow: hidden;
    position: relative;
}

.dashboard-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0.1;
    z-index: -1;
}

.text-gold { color: var(--gold); }
.text-emerald { color: var(--emerald); }

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

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

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.15); opacity: 0.85; }
    100% { transform: scale(1); opacity: 1; }
}

.animate-pulse {
    display: inline-block;
    animation: pulse 1.8s infinite ease-in-out;
}

.alert-card-gradient {
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.1) 0%, rgba(255, 193, 7, 0.05) 100%) !important;
    border: 1px solid rgba(220, 53, 69, 0.25) !important;
}

/* Excel-Like Table Styles */
.excel-table {
    border-collapse: collapse;
    width: 100%;
    background-color: var(--dark-bg);
}

.excel-table th, .excel-table td {
    border: 1px solid var(--glass-border);
    padding: 8px 12px;
    font-size: 14px;
}

.excel-col-header {
    background-color: #2c2c30;
    color: var(--text-secondary);
    text-align: center;
    font-weight: bold;
    user-select: none;
}

.excel-row-header {
    background-color: #2c2c30;
    color: var(--text-secondary);
    text-align: center;
    font-weight: bold;
    width: 40px;
    user-select: none;
}

.excel-formula-bar {
    display: flex;
    align-items: center;
    background-color: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    padding: 5px 10px;
    margin-bottom: 15px;
    font-family: monospace;
}

.excel-formula-bar .fx {
    color: var(--text-secondary);
    font-style: italic;
    font-weight: bold;
    margin-right: 10px;
    user-select: none;
}

.excel-formula-bar input {
    background: transparent;
    border: none;
    color: white;
    width: 100%;
    outline: none;
}

/* Gold Outline Button (Excel Download) */
.btn-outline-gold {
    color: var(--gold);
    border: 1px solid var(--gold);
    background: transparent;
    border-radius: 8px;
    padding: 8px 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn-outline-gold:hover {
    background: var(--gold);
    color: #0f0f12;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
    transform: translateY(-1px);
}

.btn-outline-gold:active {
    transform: translateY(0);
}

.btn-outline-gold .fa-file-excel {
    color: #27ae60;
}

.btn-outline-gold:hover .fa-file-excel {
    color: #0f0f12;
}