:root {
    /* Branding Colors */
    --primary-color: #FF6B35;
    --primary-dark: #E85D2A;
    --primary-light: #FF9F7A;
    --accent-color: #2ECC71;

    /* Backgrounds */
    --bg-color: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-header: #FFFFFF;

    /* Text Colors */
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-light: #94A3B8;

    /* Shadows */
    --shadow-sm: 0 1px 2px 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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navbar */
.navbar {
    background-color: var(--bg-header);
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.nav-logo {
    font-size: 24px;
}

.nav-title {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link:hover {
    color: var(--primary-color);
}

.btn-logout {
    background-color: #F1F5F9;
    color: var(--text-secondary);
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.btn-logout:hover {
    background-color: #E2E8F0;
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #FFF5E1 0%, #FFFFFF 100%);
    padding: 80px 24px 60px;
    text-align: center;
    border-bottom: 1px solid #E2E8F0;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.2;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Main Content */
.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 24px;
    width: 100%;
}

.section {
    margin-bottom: 60px;
}

.section-header {
    display: flex;
    align-items: center;
    margin-bottom: 32px;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    position: relative;
    padding-left: 16px;
}

.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* Grid Layout */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
}

/* Feature Card */
.feature-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 32px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(255, 107, 53, 0.2);
}

.feature-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    opacity: 0;
    transition: opacity 0.3s;
}

.feature-card:hover::after {
    opacity: 1;
}

.card-icon {
    font-size: 3.5rem;
    margin-bottom: 24px;
    display: inline-block;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    flex-grow: 1;
}

.card-arrow {
    margin-top: 24px;
    color: var(--primary-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.feature-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Utilities */
.disabled-card {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: #F8FAFC;
    box-shadow: none;
}

.disabled-card:hover {
    transform: none;
    box-shadow: none;
    border-color: rgba(0, 0, 0, 0.05);
}

.auth-badge {
    background: #FFF1EB;
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        height: auto;
        padding: 16px;
        flex-direction: column;
        gap: 16px;
    }

    .nav-menu {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-title {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: 24px;
    }
}