/* ===================================
   Mobile Video Promo Page Styles
   =================================== */

/* ===================================
   0. CSS Variables (Theme Colors)
   =================================== */

:root {
    /* Primary brand colors */
    --color-primary: #ff5722;
    --color-primary-light: #ff795e;
    
    /* Shadow colors */
    --shadow-light: rgba(0, 0, 0, 0.2);
    --shadow-medium: rgba(0, 0, 0, 0.3);
    --shadow-dark: rgba(0, 0, 0, 0.4);
    --shadow-darker: rgba(0, 0, 0, 0.5);
    --shadow-primary: rgba(255, 87, 34, 0.3);
    --shadow-primary-medium: rgba(255, 87, 34, 0.4);
    --shadow-primary-strong: rgba(255, 87, 34, 0.5);
    
    /* Overlay colors */
    --overlay-dark: rgba(0, 0, 0, 0.75);
    --overlay-primary-light: rgba(255, 87, 34, 0.1);
    --overlay-primary-border: rgba(255, 87, 34, 0.3);
    
    /* Text colors */
    --text-white: white;
    --text-white-transparent: rgba(255, 255, 255, 0.8);
    --text-dark: #333;
    
    /* Border radius values */
    --radius-small: 8px;
    --radius-medium: 12px;
    
    /* Transition timing */
    --transition-fast: 0.3s ease;
}

/* ===================================
   1. Body and Background Styles
   =================================== */

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-image: url('../assets/images/background.webp');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    min-height: 100vh;
}

/* ===================================
   2. Page Container Styles
   =================================== */

.page-container {
    max-width: 480px;
    width: 100%;
    margin: 0 auto;
    position: relative;
    padding: 15px;
    box-sizing: border-box;
}

/* Adjust padding for very small screens */
@media (max-width: 360px) {
    .page-container {
        padding: 10px;
    }
}

/* ===================================
   3. Responsive Layout
   =================================== */

/* For viewports wider than 480px, container is centered with max-width */
@media (min-width: 481px) {
    .page-container {
        margin-left: auto;
        margin-right: auto;
    }
}

/* For viewports 480px or narrower, container takes full width */
@media (max-width: 480px) {
    .page-container {
        width: 100%;
    }
}

/* ===================================
   4. Promotional Images Styles
   =================================== */

.promo-link {
    display: block;
    text-decoration: none;
    margin: 20px 0;
}

/* First promotional image - reduce top margin */
.promo-link:first-of-type {
    margin-top: 0;
}

/* Last promotional image - add bottom margin */
.promo-link:last-of-type {
    margin-bottom: 20px;
}

.promo-image {
    width: 100%;
    display: block;
    border-radius: var(--radius-small);
    box-shadow: 0 2px 8px var(--shadow-light);
    /* Use will-change to optimize transform animations */
    will-change: transform;
    /* Use transform and opacity for smooth animations */
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Hover effect for promotional images on devices that support hover */
@media (hover: hover) {
    .promo-image:hover {
        /* Only use transform for animation - no layout changes */
        transform: scale(1.02);
        box-shadow: 0 4px 12px var(--shadow-medium);
    }
}

/* ===================================
   4.1 Image Error Placeholder Styles
   =================================== */

.image-error-placeholder {
    width: 100%;
    display: block;
    border-radius: var(--radius-small);
    background: linear-gradient(135deg, var(--overlay-primary-light) 0%, var(--overlay-primary-light) 100%);
    border: 2px dashed var(--overlay-primary-border);
    padding: 40px 20px;
    text-align: center;
    box-sizing: border-box;
    min-height: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.image-error-icon {
    font-size: 48px;
    margin-bottom: 10px;
    opacity: 0.6;
}

.image-error-text {
    color: var(--text-white-transparent);
    font-size: 14px;
    line-height: 1.4;
    margin: 0;
}

@media (max-width: 360px) {
    .image-error-placeholder {
        padding: 30px 15px;
        min-height: 120px;
    }
    
    .image-error-icon {
        font-size: 36px;
    }
    
    .image-error-text {
        font-size: 12px;
    }
}

/* ===================================
   5. Video Player Styles
   =================================== */

.video-player {
    width: 100%;
    border-radius: var(--radius-medium);
    box-shadow: 0 6px 16px var(--shadow-dark);
    cursor: pointer;
    display: block;
    margin: 20px 0;
    /* Use will-change for optimized animations */
    will-change: transform;
    /* Only animate properties that don't cause reflow */
    transition: box-shadow var(--transition-fast);
}

/* Hide fullscreen button in video controls */
.video-player::-webkit-media-controls-fullscreen-button {
    display: none;
}

.video-player::-moz-media-controls-fullscreen-button {
    display: none;
}

/* Enhanced shadow on hover for devices that support hover */
@media (hover: hover) {
    .video-player:hover {
        box-shadow: 0 8px 20px var(--shadow-darker);
    }
}

/* ===================================
   5.1 Video Fallback Image Styles
   =================================== */

.video-fallback-image {
    width: 100%;
    border-radius: var(--radius-medium);
    box-shadow: 0 6px 16px var(--shadow-dark);
    display: block;
    margin: 20px 0;
    object-fit: cover;
}

/* ===================================
   5.2 Video Error Message Styles
   =================================== */

.video-error {
    width: 100%;
    background: var(--overlay-primary-light);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-medium);
    padding: 20px;
    margin: 20px 0;
    text-align: center;
    box-shadow: 0 4px 12px var(--shadow-primary);
}

.video-error-icon {
    font-size: 48px;
    margin-bottom: 10px;
}

.video-error-message {
    color: var(--text-white);
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
    font-weight: 500;
}

@media (max-width: 360px) {
    .video-error {
        padding: 15px;
    }
    
    .video-error-icon {
        font-size: 36px;
    }
    
    .video-error-message {
        font-size: 14px;
    }
}

/* ===================================
   6. Video Description Text Styles
   =================================== */

.video-description {
    color: var(--text-white);
    font-size: 16px;
    line-height: 1.6;
    text-align: center;
    margin: 20px 15px;
    padding: 0;
}

/* Responsive font size for smaller screens */
@media (max-width: 360px) {
    .video-description {
        font-size: 14px;
    }
}

/* ===================================
   7. Modal Styles
   =================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: none;
}

#posterModal {
    z-index: 1100;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-dark);
    backdrop-filter: blur(2px);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    /* Use transform for positioning - GPU accelerated */
    transform: translate(-50%, -50%);
    background: var(--text-white);
    padding: 30px;
    border-radius: var(--radius-medium);
    text-align: center;
    max-width: 80%;
    box-shadow: 0 12px 32px var(--shadow-darker);
    z-index: 1001;
    /* Optimize for animations */
    will-change: transform, opacity;
}

.download-modal-content {
    max-width: 90%;
    padding: 40px 30px;
}

.modal-title {
    color: var(--text-dark);
    font-size: 20px;
    line-height: 1.6;
    margin: 0 0 25px 0;
    font-weight: 600;
}

.modal-download-button {
    font-size: 20px;
    padding: 18px 60px;
}

.modal-text {
    color: var(--text-dark);
    font-size: 18px;
    line-height: 1.6;
    margin: 0 0 20px 0;
    font-weight: 500;
}

.modal-title {
    color: var(--text-white);
    font-size: 20px;
    line-height: 1.5;
    margin: 0 0 30px 0;
    font-weight: 600;
    text-align: center;
}

.download-modal-content {
    background: rgba(0, 0, 0, 0.85);
    padding: 40px 30px;
    border-radius: var(--radius-medium);
    width: 70%;
}

.modal-download-button {
    font-size: 22px;
    padding: 18px 60px;
    max-width: 100%;
}

/* ===================================
   8. Poster Modal Styles
   =================================== */

.poster-content {
    position: absolute;
    top: 50%;
    left: 50%;
    /* Use transform for positioning - GPU accelerated */
    transform: translate(-50%, -50%);
    max-width: 95%;
    width: 95%;
    text-align: center;
    z-index: 1002;
    /* Optimize for animations */
    will-change: transform, opacity;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.poster-image {
    width: 100%;
    border-radius: var(--radius-small);
    margin-bottom: 25px;
    box-shadow: 0 12px 32px var(--shadow-darker);
}

.poster-button {
    width: 85%;
    max-width: 400px;
    font-size: 22px;
    padding: 18px 50px;
    margin: 0 auto;
    display: block;
}

/* ===================================
   9. Download Button Styles
   =================================== */

.download-button {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--text-white);
    border: none;
    padding: 15px 40px;
    font-size: 18px;
    font-weight: bold;
    border-radius: var(--radius-small);
    cursor: pointer;
    box-shadow: 0 4px 12px var(--shadow-primary-medium);
    /* Use will-change for optimized animations */
    will-change: transform;
    /* Only animate transform and opacity - no layout changes */
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    width: 100%;
    max-width: 300px;
    margin: 20px auto;
    display: block;
}

/* Hover effect for download button on devices that support hover */
@media (hover: hover) {
    .download-button:hover {
        /* Only use transform for animation - GPU accelerated */
        transform: translateY(-2px);
        box-shadow: 0 8px 16px var(--shadow-primary-strong);
    }
}

.download-button:active {
    /* Only use transform for animation - GPU accelerated */
    transform: translateY(0);
    box-shadow: 0 2px 8px var(--shadow-primary);
}

/* Responsive button sizing for smaller screens */
@media (max-width: 360px) {
    .download-button {
        font-size: 16px;
        padding: 12px 30px;
    }
}

/* ===================================
   9.1 Main Download Button (Below Video)
   =================================== */

.main-download-button {
    margin-top: 10px;
    margin-bottom: 30px;
    font-size: 20px;
    padding: 18px 50px;
    max-width: 350px;
}

@media (max-width: 360px) {
    .main-download-button {
        font-size: 18px;
        padding: 15px 40px;
    }
}