:root {
    --primary: #00cec9;
    --primary-rgb: 0, 206, 201;
    --secondary: #6c5ce7;
    --accent: #fd79a8;
    --text: #2d3436;
    --text-muted: #636e72;
    --bg: #f5f6fa;
    --sidebar-bg: rgba(255, 255, 255, 0.8);
    --card-bg: rgba(255, 255, 255, 0.7);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
    --radius: 16px;
    --sidebar-width: 280px;
}

[data-theme="dark"] {
    --text: #f5f6fa;
    --text-muted: #b2bec3;
    --bg: #0f172a;
    --sidebar-bg: rgba(30, 41, 59, 0.82);
    --card-bg: rgba(30, 41, 59, 0.5);
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

.layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: var(--sidebar-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem 1.5rem;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 3rem;
}

.logo img {
    height: 40px;
}

.nav-menu {
    list-style: none;
}

.nav-item {
    margin-bottom: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text-muted);
    border-radius: var(--radius);
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-link:hover, .nav-link.active {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
}

.nav-link.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.3);
}

.nav-link ion-icon {
    font-size: 1.25rem;
}

/* Header/Mobile Nav */
.header-mobile {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--sidebar-bg);
    backdrop-filter: blur(10px);
    z-index: 90;
    padding: 0 1.5rem;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 4rem 10%;
    max-width: 1400px;
}

.content-inner {
    max-width: 900px;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 2.5rem 0 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

h2::before {
    content: '';
    display: block;
    width: 4px;
    height: 1.5rem;
    background: var(--primary);
    border-radius: 2px;
}

p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.card ion-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .main-content {
        padding: 4rem 5%;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
        padding-top: 6rem;
    }
    .header-mobile {
        display: flex;
    }
}

/* Alerts */
.alert {
    padding: 1.25rem;
    border-radius: var(--radius);
    margin: 1.5rem 0;
    display: flex;
    gap: 1rem;
    align-items: start;
}

.alert-tip {
    background: rgba(0, 206, 201, 0.1);
    border: 1px solid var(--primary);
}

.alert ion-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.doc-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0 1.5rem;
    font-size: 0.95rem;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid rgba(var(--primary-rgb), 0.15);
}

.doc-table thead {
    background: rgba(var(--primary-rgb), 0.08);
}

.doc-table th {
    text-align: left;
    padding: 10px 14px;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--text);
}

.doc-table td {
    padding: 10px 14px;
    color: var(--text-muted);
    border-top: 1px solid rgba(var(--primary-rgb), 0.08);
}

.doc-table tbody tr:hover {
    background: rgba(var(--primary-rgb), 0.04);
}

.doc-table code {
    background: rgba(var(--primary-rgb), 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
}