/* ================================================
   Web Development for Sustainability - Styles
   ================================================ */

/* Green/Sustainability Theme Colors */
:root {
    --green-primary: #22c55e;
    --green-secondary: #16a34a;
    --green-glow: rgba(34, 197, 94, 0.4);
    --green-gradient: linear-gradient(135deg, #22c55e, #16a34a);
}

.gradient-text-green {
    background: var(--green-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Hero Section */
.advanced-hero {
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10rem 5% 4rem;
    text-align: center;
    position: relative;
}

.advanced-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(34, 197, 94, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.hero-meta {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.meta-icon {
    font-size: 1.25rem;
}

/* Overview Section */
.overview-section {
    padding: var(--section-padding) 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

@media (max-width: 900px) {
    .overview-grid {
        grid-template-columns: 1fr;
    }
}

.overview-content {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

.overview-content p {
    margin-bottom: 1.5rem;
}

.learning-outcomes {
    background: var(--surface-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 2rem;
}

.learning-outcomes h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--green-primary);
}

.learning-outcomes ul {
    list-style: none;
}

.learning-outcomes li {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    align-items: flex-start;
}

.outcome-icon {
    width: 24px;
    height: 24px;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green-primary);
    font-size: 0.75rem;
    flex-shrink: 0;
}

.learning-outcomes li span:last-child {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Curriculum Section */
.curriculum-section {
    padding: var(--section-padding) 5%;
    background: rgba(34, 197, 94, 0.02);
}

.curriculum-section .section-header {
    max-width: 1200px;
    margin: 0 auto;
}

.modules-list {
    max-width: 1200px;
    margin: 3rem auto 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.curriculum-module {
    background: var(--surface-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-medium);
}

.curriculum-module:hover {
    border-color: var(--green-primary);
}

.curriculum-module .module-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem 2rem;
    background: var(--glass-bg);
    border-bottom: 1px solid var(--glass-border);
}

.curriculum-module .module-num {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--green-primary);
    opacity: 0.5;
}

.curriculum-module h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
}

.module-content {
    padding: 1.5rem 2rem;
}

.module-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.topics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.topics span {
    padding: 0.375rem 0.75rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Projects Section */
.projects-section {
    padding: var(--section-padding) 5%;
}

.projects-section .section-header {
    max-width: 1200px;
    margin: 0 auto;
}

.projects-grid {
    max-width: 1200px;
    margin: 3rem auto 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--surface-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition-medium);
}

.project-card:hover {
    border-color: var(--green-primary);
    transform: translateY(-4px);
}

.project-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.project-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.project-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.project-status {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-status.upcoming {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}

.project-status.active {
    background: rgba(34, 197, 94, 0.1);
    color: var(--green-primary);
}

/* Resources Section */
.resources-section {
    padding: var(--section-padding) 5%;
    background: rgba(34, 197, 94, 0.02);
}

.resources-section .section-header {
    max-width: 1200px;
    margin: 0 auto;
}

.resources-grid {
    max-width: 1200px;
    margin: 3rem auto 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.resource-card {
    background: var(--surface-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
}

.resource-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.resource-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.resource-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.resource-status {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--glass-bg);
    border-radius: 50px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.project-link, .resource-link {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-medium);
}

.project-link {
    background: rgba(34, 197, 94, 0.1);
    color: var(--green-primary);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.project-link:hover {
    background: rgba(34, 197, 94, 0.2);
    transform: translateY(-2px);
}

.resource-link {
    background: var(--glass-bg);
    color: var(--text-secondary);
    border: 1px solid var(--glass-border);
}

.resource-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border-color: var(--green-primary);
}