/**
 * GREEN. DIGITAL. SMART Forum 2026
 * Program Page Styles
 */

/* Page Hero */
.page-hero {
    padding: 140px 5% 60px;
    text-align: center;
    background: linear-gradient(135deg, var(--dark-green) 0%, #004D40 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(74, 222, 128, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(34, 211, 238, 0.15) 0%, transparent 40%);
}

.page-hero > * {
    position: relative;
    z-index: 1;
}

.page-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.page-hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.page-hero .dates {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    margin-top: 1.5rem;
    font-weight: 600;
}

/* Day Navigation */
.day-nav {
    position: sticky;
    top: 70px;
    background: white;
    padding: 1rem 5%;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    z-index: 100;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.day-btn {
    padding: 0.8rem 1.5rem;
    border: 2px solid var(--light-green);
    background: white;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.day-btn:hover, .day-btn.active {
    background: var(--primary-green);
    border-color: var(--primary-green);
    color: white;
}

.day-btn .day-date {
    font-size: 0.75rem;
    opacity: 0.7;
    display: block;
    margin-top: 2px;
}

/* Content */
.program-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 5%;
}

/* Program Hint */
.program-hint {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.75rem 1.25rem;
    margin-bottom: 2rem;
    background: rgba(0, 166, 81, 0.06);
    border: 1px dashed rgba(0, 166, 81, 0.25);
    border-radius: 12px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.program-hint i {
    color: var(--primary-green);
    font-size: 0.9rem;
    flex-shrink: 0;
}

/* Day Section */
.day-section {
    margin-bottom: 4rem;
    scroll-margin-top: 150px;
}

.day-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--light-green);
}

.day-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-green);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
}

.day-number .num {
    font-size: 2rem;
    line-height: 1;
}

.day-number .month {
    font-size: 0.8rem;
    font-weight: 600;
    opacity: 0.9;
}

.day-info h2 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 0.3rem;
}

.day-info p {
    color: var(--text-light);
}

/* Event Card */
.event-card {
    background: white;
    border-radius: 20px;
    padding: 1.5rem 2rem;
    margin-bottom: 1rem;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1.5rem;
    align-items: start;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 166, 81, 0.1);
    transition: all 0.3s;
}

.event-card:hover {
    transform: translateX(10px);
    box-shadow: 0 15px 40px rgba(0, 166, 81, 0.1);
    border-color: var(--primary-green);
}

.event-time {
    text-align: center;
    min-width: 80px;
}

.event-time .time {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-green);
}

.event-time .location {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.3rem;
}

.event-details h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.event-details p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.75rem;
}

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

.event-tag {
    padding: 0.3rem 0.8rem;
    background: var(--light-green);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--dark-green);
}

.event-tag.blue {
    background: rgba(0, 188, 212, 0.1);
    color: #0097A7;
}

.event-tag.orange {
    background: rgba(247, 148, 29, 0.1);
    color: #E07800;
}

.event-stats {
    text-align: right;
    min-width: 100px;
}

.event-stats .participants {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-green);
}

.event-stats .label {
    font-size: 0.75rem;
    color: var(--text-light);
}

/* Section Events (sub-events) */
.section-events {
    margin-left: 2rem;
    padding-left: 1.5rem;
    border-left: 3px solid var(--light-green);
}

.section-event {
    background: #fafffe;
    border-radius: 15px;
    padding: 1.2rem 1.5rem;
    margin-bottom: 0.8rem;
    border: 1px solid rgba(0, 166, 81, 0.08);
    transition: all 0.3s;
}

.section-event:hover {
    background: white;
    box-shadow: 0 5px 20px rgba(0, 166, 81, 0.08);
}

.section-event h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--text-dark);
}

.section-event .meta {
    font-size: 0.85rem;
    color: var(--text-light);
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.section-event .meta span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.section-event .meta i {
    color: var(--primary-green);
}

/* Special Events */
.special-event {
    background: linear-gradient(135deg, rgba(0, 166, 81, 0.05) 0%, rgba(0, 188, 212, 0.05) 100%);
    border: 2px solid rgba(0, 166, 81, 0.2);
}

.special-event:hover {
    border-color: var(--primary-green);
}

/* Download Button */
.download-section {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: 25px;
    margin-top: 2rem;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--gradient-green);
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 166, 81, 0.3);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.event-card:nth-child(1) { animation-delay: 0.1s; }
.event-card:nth-child(2) { animation-delay: 0.2s; }
.event-card:nth-child(3) { animation-delay: 0.3s; }
.event-card:nth-child(4) { animation-delay: 0.4s; }
.event-card:nth-child(5) { animation-delay: 0.5s; }

/* Clickable Concept Card */
.event-card.has-concept {
    cursor: pointer;
    position: relative;
}

.event-card.has-concept:hover {
    transform: translateX(10px) translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 166, 81, 0.15);
    border-color: var(--primary-green);
}

.event-card.has-concept::after {
    content: '\f054';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--primary-green);
    opacity: 0;
    transition: all 0.3s ease;
}

.event-card.has-concept:hover::after {
    opacity: 1;
    right: 1.2rem;
}

/* Concept Modal */
.concept-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 10000;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem 1rem;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.concept-overlay.active {
    display: flex;
}

.concept-modal {
    background: #fff;
    border-radius: 1.2rem;
    max-width: 860px;
    width: 100%;
    margin: auto;
    padding: 2.5rem;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
    animation: conceptSlideUp 0.35s ease-out;
}

@keyframes conceptSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.concept-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: #f1f5f9;
    color: #475569;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    z-index: 1;
}

.concept-modal-close:hover {
    background: #e2e8f0;
    color: #1e293b;
}

.concept-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--light-green);
}

.concept-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark-green);
    margin-bottom: 0.5rem;
    letter-spacing: 0.5px;
}

.concept-header p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.5;
}

.concept-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 2rem;
    background: #f8fffe;
    border-radius: 0.8rem;
    padding: 1.25rem;
    border: 1px solid #e0f2f1;
}

.concept-meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.concept-meta-item .meta-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary-green);
}

.concept-meta-item .meta-value {
    font-size: 0.85rem;
    color: var(--text-dark);
    font-weight: 500;
}

.concept-section {
    margin-bottom: 1.5rem;
}

.concept-section h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.concept-section h3 i {
    color: var(--primary-green);
    font-size: 0.85rem;
}

.concept-section p {
    font-size: 0.9rem;
    color: #4a5568;
    line-height: 1.7;
}

.concept-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.concept-section ul li {
    font-size: 0.88rem;
    color: #4a5568;
    line-height: 1.6;
    padding: 0.35rem 0 0.35rem 1.5rem;
    position: relative;
}

.concept-section ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.85rem;
    width: 6px;
    height: 6px;
    background: var(--primary-green);
    border-radius: 50%;
}

/* Info Letters */
.concept-info-letters {
    margin-top: 1.5rem;
}

.info-letter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: #fff;
    border: 1.5px solid rgba(0, 166, 81, 0.25);
    border-radius: 50px;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
}

.info-letter-btn:hover {
    background: var(--primary-green);
    border-color: var(--primary-green);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 166, 81, 0.25);
}

.info-letter-btn .fa-file-pdf {
    color: #e53e3e;
    font-size: 1rem;
}

.info-letter-btn:hover .fa-file-pdf {
    color: #fff;
}

.info-letter-btn .fa-download {
    font-size: 0.7rem;
    opacity: 0.5;
}

.info-letter-btn:hover .fa-download {
    opacity: 1;
}

.concept-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 2px solid #f0f4f8;
    text-align: center;
}

.concept-footer p {
    font-size: 0.9rem;
    color: #4a5568;
    line-height: 1.7;
    font-style: italic;
}

.concept-close-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1.25rem;
    padding: 0.65rem 2rem;
    background: var(--primary-green);
    color: #fff;
    border: none;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.concept-close-btn:hover {
    background: var(--dark-green);
    transform: translateY(-1px);
}

/* Responsive */
@media (max-width: 768px) {
    .page-hero h1 {
        font-size: 2rem;
    }

    .event-card {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .event-time {
        text-align: left;
        display: flex;
        gap: 1rem;
        align-items: center;
    }

    .event-stats {
        text-align: left;
        display: flex;
        gap: 0.5rem;
        align-items: baseline;
    }

    .section-events {
        margin-left: 0;
        padding-left: 1rem;
    }

    .day-header {
        flex-direction: column;
        text-align: center;
    }

    .concept-modal {
        padding: 1.5rem;
        margin: 0.5rem;
        border-radius: 0.8rem;
    }

    .concept-overlay {
        padding: 1rem 0.5rem;
    }

    .concept-header h2 {
        font-size: 1.2rem;
    }

    .concept-meta {
        grid-template-columns: 1fr;
        gap: 0.6rem;
    }

    .concept-modal-close {
        top: 0.6rem;
        right: 0.6rem;
    }
}