/* Global Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #4285F4; /* Google Blue-ish */
    --secondary-color: #5F6368;
    --background-color: #F8F9FA;
    --surface-color: #FFFFFF;
    --text-color: #202124;
    --border-color: #DADCE0;
    --success-color: #0F9D58;
    --danger-color: #DB4437;
    --warning-color: #F4B400;
    --sidebar-width: 256px;
    --header-height: 64px;
    --font-family: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    font-family: inherit;
}

/* Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.w-full { width: 100%; }
.h-full { height: 100%; }
.p-4 { padding: 1rem; }
.text-center { text-align: center; }

/* Landing Page Specifics */
.landing-header {
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.hero {
    margin-top: 80px;
    padding: 4rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    background: radial-gradient(circle at center, rgba(66, 133, 244, 0.1) 0%, transparent 70%);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #4285F4 0%, #34A853 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    color: var(--secondary-color);
    max-width: 600px;
    margin-bottom: 2rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 500;
    transition: all 0.2s;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #3367D6;
    box-shadow: 0 4px 6px rgba(66, 133, 244, 0.2);
}

.btn-outline {
    border: 1px solid var(--border-color);
    background: transparent;
}

.btn-outline:hover {
    background-color: #F1F3F4;
}

.features {
    padding: 4rem 2rem;
    background: var(--surface-color);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--background-color);
    transition: transform 0.2s;
}

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

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Dashboard Layout */
.dashboard-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

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

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.nav-links {
    padding: 1rem 0;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--secondary-color);
    font-weight: 500;
    transition: background 0.2s, color 0.2s;
}

.nav-item:hover, .nav-item.active {
    background-color: #E8F0FE;
    color: var(--primary-color);
}

.nav-item i {
    margin-right: 1rem;
    width: 24px;
    text-align: center;
}

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

.top-bar {
    height: var(--header-height);
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
}

.search-bar {
    display: flex;
    align-items: center;
    background: #F1F3F4;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    width: 400px;
}

.search-bar input {
    border: none;
    background: transparent;
    margin-left: 0.5rem;
    width: 100%;
    outline: none;
    font-size: 0.9rem;
}

.dashboard-view {
    padding: 2rem;
    overflow-y: auto;
    flex: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--surface-color);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    position: relative;
}

.stat-title {
    font-size: 0.875rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-color);
}

.stat-trend {
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.trend-up { color: var(--success-color); }
.trend-down { color: var(--danger-color); }

.charts-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-card {
    background: var(--surface-color);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.chart-title {
    font-size: 1.25rem;
    font-weight: 500;
}

@media (max-width: 1024px) {
    .charts-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        position: absolute;
        left: -100%;
        height: 100%;
        z-index: 1000;
    }
    .sidebar.open {
        left: 0;
    }
}