/* Jetson Roadmap - Main Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --primary: #10b981;
    --secondary: #3b82f6;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1f2937;
    --light: #f3f4f6;
    --white: #ffffff;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Navbar */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    border-radius: 15px;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

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

.stat-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.stat-icon.success { color: var(--success); }
.stat-icon.warning { color: var(--warning); }
.stat-icon.info { color: var(--secondary); }

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark);
}

.stat-label {
    color: #6b7280;
    margin-top: 0.5rem;
}

/* Actions Grid */
.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.action-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    text-decoration: none;
    color: var(--dark);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s;
}

.action-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.action-card i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.action-card h3 {
    margin: 1rem 0;
    font-size: 1.3rem;
}

.action-card p {
    color: #6b7280;
}

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

.project-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: relative;
}

.project-card.completed {
    border-left: 4px solid var(--success);
}

.project-status {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    color: var(--warning);
}

.project-card.completed .project-status {
    color: var(--success);
}

.project-card h3 {
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.project-card p {
    color: #6b7280;
    margin-bottom: 1rem;
}

.project-meta {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
    font-size: 0.9rem;
    color: #6b7280;
}

/* Button */
.btn-primary {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 0.7rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background 0.3s;
}

.btn-primary:hover {
    background: #059669;
}

/* Calendar Grid */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.day-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.day-card h3 {
    margin-bottom: 1rem;
    color: var(--primary);
    border-bottom: 2px solid var(--light);
    padding-bottom: 0.5rem;
}

.time-slot {
    padding: 0.75rem 1rem;
    color: #6b7280;
    font-size: 0.9rem;
}

.day-card.saturday h3 { color: var(--warning); }
.day-card.sunday h3 { color: var(--secondary); }

/* Roadmap Timeline */
.roadmap-timeline {
    margin: 2rem 0;
}

.phase-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.phase-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.phase-duration {
    background: var(--primary);
    color: var(--white);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.phase-projects {
    margin-top: 1.5rem;
}

.project-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    color: #6b7280;
}

.project-item.completed {
    color: var(--success);
}

.project-item i {
    font-size: 1.2rem;
}

/* Skills Section */
.skills-section {
    margin: 3rem 0;
}

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.skill-tag {
    background: var(--primary);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.empty-message {
    color: #6b7280;
    font-style: italic;
    text-align: center;
    padding: 2rem;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer .container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer i {
    color: var(--danger);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .stats-grid,
    .actions-grid,
    .projects-grid,
    .calendar-grid {
        grid-template-columns: 1fr;
    }
}