/* ===================================
   ICAIRE Podcast - Main Styles
   =================================== */

/* ===================================
   CSS Variables
   =================================== */
:root {
    /* Brand Colors */
    --color-primary: #0A5C3C;
    --color-primary-dark: #084532;
    --color-primary-light: #0D7049;
    --color-accent: #D4AF37;
    --color-accent-hover: #BF9B2F;
    --color-white: #FFFFFF;
    --color-light-gray: #F5F5F5;
    --color-gray: #E0E0E0;
    --color-dark-gray: #666666;
    --color-text: #333333;
    --color-text-light: #666666;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
}

/* ===================================
   Global Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-medium);
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

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

/* ===================================
   Section Headers
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    color: var(--color-primary);
    font-size: 2.5rem;
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    color: var(--color-text-light);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Hero Section
   =================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
    background-image: url('https://www.genspark.ai/api/files/s/3Sot1lxh');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    color: var(--color-white);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 92, 60, 0.95) 0%, rgba(10, 92, 60, 0.85) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--spacing-md);
    animation: fadeInUp 1s ease-out;
}

.podcast-logo {
    margin-bottom: var(--spacing-md);
    animation: fadeIn 0.8s ease-out;
}

.podcast-logo img {
    width: 150px;
    height: 150px;
    object-fit: contain;
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.3));
}

.hero-title {
    font-size: 3.5rem;
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: var(--font-weight-regular);
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    animation: fadeInUp 1s ease-out 0.4s backwards;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s backwards;
}

.language-toggle {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    z-index: 10;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-weight: var(--font-weight-semibold);
    backdrop-filter: blur(10px);
    transition: all var(--transition-medium);
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: var(--color-white);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce 2s infinite;
}

.scroll-indicator i {
    font-size: 2rem;
    color: var(--color-white);
    opacity: 0.7;
}

/* ===================================
   Video Teaser Section
   =================================== */
.video-teaser-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.video-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium);
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    background: var(--color-primary-dark);
}

.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-info {
    padding: var(--spacing-md);
}

.video-info h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.video-info p {
    color: var(--color-text-light);
    font-size: 1rem;
}

/* ===================================
   Episodes Section
   =================================== */
.episodes-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-light-gray);
}

.episodes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.episode-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium);
}

.episode-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.episode-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.episode-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.episode-card:hover .episode-image img {
    transform: scale(1.1);
}

.episode-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--color-accent);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    box-shadow: var(--shadow-md);
}

.episode-badge.episode-available {
    background: #10B981; /* Green for available */
    animation: pulse 2s infinite;
}

.episode-badge.episode-recorded {
    background: #3B82F6; /* Blue for recorded */
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

.episode-guest {
    color: var(--color-primary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-medium);
}

.episode-guest i {
    margin-right: var(--spacing-xs);
    color: var(--color-accent);
}

.episode-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    align-items: center;
}

.episode-link-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-primary);
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.episode-link-secondary:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.episode-status {
    color: var(--color-accent);
    font-size: 0.9rem;
    font-weight: var(--font-weight-semibold);
    padding: 0.5rem 1rem;
    background: rgba(212, 175, 55, 0.1);
    border-radius: var(--radius-full);
}

.episodes-view-all {
    margin-top: var(--spacing-xl);
    text-align: center;
}

.btn-lg {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.episodes-subtitle {
    margin-top: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.episode-content {
    padding: var(--spacing-md);
}

.episode-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
}

.episode-number {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.episode-date {
    color: var(--color-text-light);
}

.episode-title {
    color: var(--color-primary);
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.episode-description {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.episode-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tag {
    background: var(--color-light-gray);
    color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
}

.episode-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    transition: gap var(--transition-fast);
}

.episode-link:hover {
    gap: var(--spacing-sm);
}

/* ===================================
   Calendar Section
   =================================== */
.calendar-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.calendar-container {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.calendar-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.calendar-month {
    color: var(--color-primary);
    font-size: 1.75rem;
    font-weight: var(--font-weight-bold);
}

.calendar-nav {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.calendar-nav:hover {
    background: var(--color-primary-light);
    transform: scale(1.1);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    margin-bottom: var(--spacing-md);
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--color-light-gray);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
}

.calendar-day-header {
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    background: transparent;
    cursor: default;
}

.calendar-day.other-month {
    opacity: 0.3;
    cursor: default;
}

.calendar-day.today {
    background: var(--color-primary);
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
}

.calendar-day.has-event {
    background: var(--color-accent);
    color: var(--color-white);
}

.calendar-day.unesco-day {
    background: var(--color-primary-light);
    color: var(--color-white);
}

.calendar-day:not(.calendar-day-header):not(.other-month):hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
    z-index: 1;
}

.event-indicator {
    position: absolute;
    bottom: 4px;
    display: flex;
    gap: 2px;
}

.event-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-white);
}

.calendar-legend {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-sm);
}

.legend-color.podcast {
    background: var(--color-accent);
}

.legend-color.unesco {
    background: var(--color-primary-light);
}

.events-list {
    background: var(--color-light-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.events-list h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.event-item {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    border-left: 4px solid var(--color-primary);
    transition: all var(--transition-fast);
}

.event-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.event-item.podcast-event {
    border-left-color: var(--color-accent);
}

.event-date {
    color: var(--color-text-light);
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.event-title {
    color: var(--color-primary);
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xs);
}

.event-description {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ===================================
   Subscribe Section
   =================================== */
.subscribe-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
}

.subscribe-content {
    text-align: center;
}

.subscribe-header h2 {
    color: var(--color-white);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.subscribe-header p {
    font-size: 1.25rem;
    opacity: 0.95;
    margin-bottom: var(--spacing-xl);
}

.social-platforms {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.platform-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    min-width: 150px;
    backdrop-filter: blur(10px);
    transition: all var(--transition-medium);
}

.platform-card:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--color-white);
    transform: translateY(-8px);
}

.platform-card i {
    font-size: 3rem;
}

.platform-card span {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
}

.platform-card.spotify:hover {
    background: #1DB954;
    border-color: #1DB954;
}

.platform-card.youtube:hover {
    background: #FF0000;
    border-color: #FF0000;
}

.platform-card.linkedin:hover {
    background: #0A66C2;
    border-color: #0A66C2;
}

.platform-card.twitter:hover {
    background: #000000;
    border-color: #000000;
}

.newsletter-signup {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.newsletter-signup h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
}

.newsletter-signup p {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-md);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
}

.newsletter-form input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    font-size: 1rem;
    backdrop-filter: blur(10px);
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--color-white);
    background: rgba(255, 255, 255, 0.3);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-branding {
    max-width: 400px;
}

.footer-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: var(--spacing-sm);
}

.footer-branding p {
    font-size: 0.95rem;
    opacity: 0.9;
    line-height: 1.6;
}

.footer-links {
    display: contents;
}

.footer-column h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.footer-column ul li a:hover {
    color: var(--color-white);
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

/* ===================================
   Responsive Design
   =================================== */

/* Tablets */
@media (max-width: 968px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .episodes-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-branding {
        max-width: 100%;
    }
}

/* Mobile */
@media (max-width: 640px) {
    :root {
        --spacing-sm: 0.75rem;
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    
    .podcast-logo img {
        width: 100px;
        height: 100px;
    }
    
    .video-grid {
        gap: var(--spacing-md);
    }
    
    .episodes-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .calendar-grid {
        gap: 4px;
    }
    
    .calendar-day {
        font-size: 0.75rem;
    }
    
    .social-platforms {
        gap: var(--spacing-sm);
    }
    
    .platform-card {
        min-width: 120px;
        padding: var(--spacing-md);
    }
    
    .platform-card i {
        font-size: 2rem;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input,
    .newsletter-form button {
        width: 100%;
    }
    
    .language-toggle {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
    }
}

/* Extra Small Devices */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }
}