/**
 * DeukSpine Scroll Animations - Core Styles
 */

/* Section Container */
.dsa-animation-section {
    position: relative;
    width: 100%;
    /* Note: Do NOT use overflow: hidden here - it breaks sticky positioning */
}

.dsa-section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 1rem;
    padding: 1rem;
    color: #1a1a2e;
}

/* Animation Wrapper - height is set dynamically by JS based on scrollHeight */
.dsa-animation-wrapper {
    position: relative;
    width: 100%;
    /* Height set by JavaScript for scroll-based animation */
}

.dsa-sticky-wrapper {
    position: sticky;
    top: 0;
    height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    background: var(--dsa-animation-bg, #ffffff);
    overflow: hidden;
}

/* Animation Container (wraps canvas and loading indicator) */
.dsa-animation-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Canvas */
.dsa-animation-canvas {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.dsa-section-scroll-only .dsa-animation-canvas {
    max-height: 90vh;
}

.dsa-section-apple-reveal .dsa-animation-canvas {
    max-height: 85vh;
}

/* Side-by-side layout adjustments */
.dsa-layout-left .dsa-animation-canvas,
.dsa-layout-right .dsa-animation-canvas {
    max-height: 80vh;
    max-width: 95%;
}

/* Bottom layout keeps original behavior */
.dsa-layout-bottom .dsa-animation-canvas {
    max-height: 60vh;
    margin-top: 2rem;
}

/* Loading Indicator */
.dsa-loading-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    z-index: 10;
    transition: opacity 0.3s ease;
}

.dsa-loading-indicator.is-hidden {
    opacity: 0;
    pointer-events: none;
}

.dsa-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-left-color: #2271b1;
    border-radius: 50%;
    animation: dsa-spin 1s linear infinite;
}

@keyframes dsa-spin {
    to {
        transform: rotate(360deg);
    }
}

.dsa-loading-text {
    font-size: 14px;
    color: #666;
}

.dsa-loading-progress {
    font-size: 18px;
    font-weight: 600;
    color: #2271b1;
}

/* Iframe Section */
.dsa-iframe-section {
    position: relative;
    padding: 2rem;
}

/* Hidden mode: only hide the visible container, not the modal */
.dsa-iframe-section.dsa-iframe-hidden {
    padding: 0;
    margin: 0;
    height: 0;
    overflow: visible; /* Important: allows modal to show */
}

.dsa-iframe-section.dsa-iframe-hidden .dsa-iframe-container {
    display: none;
}

.dsa-iframe-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.dsa-iframe-placeholder {
    position: relative;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.dsa-iframe-placeholder:hover {
    transform: scale(1.01);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.dsa-placeholder-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dsa-placeholder-default {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.dsa-open-iframe-btn {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px 32px;
    background: rgba(255, 255, 255, 0.95);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.dsa-open-iframe-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.dsa-play-icon {
    color: #2271b1;
}

.dsa-open-iframe-btn span {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a2e;
}

/* Iframe Modal */
.dsa-iframe-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dsa-iframe-modal[hidden] {
    display: none;
}

.dsa-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.dsa-modal-content {
    position: relative;
    width: 90vw;
    height: 90vh;
    max-width: 1400px;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.dsa-iframe-modal .dsa-close-modal,
.dsa-iframe-modal button.dsa-close-modal {
    position: absolute !important;
    top: 24px !important;
    right: 24px !important;
    width: 48px !important;
    height: 48px !important;
    min-width: 48px !important;
    min-height: 48px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: rgba(0, 0, 0, 0.75) !important;
    border: 2px solid rgba(255, 255, 255, 0.2) !important;
    border-radius: 50% !important;
    cursor: pointer !important;
    z-index: 10 !important;
    transition: all 0.3s ease !important;
    backdrop-filter: blur(8px) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3) !important;
    padding: 0 !important;
    margin: 0 !important;
    line-height: 1 !important;
    font-size: 16px !important;
    text-decoration: none !important;
    outline: none !important;
}

.dsa-iframe-modal .dsa-close-modal:hover,
.dsa-iframe-modal button.dsa-close-modal:hover {
    background: rgba(0, 0, 0, 0.9) !important;
    border-color: rgba(255, 255, 255, 0.4) !important;
    transform: scale(1.05) !important;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4) !important;
    color: #ffffff !important;
}

.dsa-iframe-modal .dsa-close-modal:active,
.dsa-iframe-modal button.dsa-close-modal:active {
    transform: scale(0.95) !important;
}

.dsa-iframe-modal .dsa-close-modal svg,
.dsa-iframe-modal button.dsa-close-modal svg {
    color: #ffffff !important;
    fill: #ffffff !important;
    width: 20px !important;
    height: 20px !important;
    display: block !important;
}

.dsa-interactive-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Iframe Error Message */
.dsa-iframe-error {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
    background: #f6f7f7;
}

.dsa-error-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.dsa-iframe-error h3 {
    font-size: 24px;
    margin: 0 0 16px;
    color: #1a1a2e;
}

.dsa-iframe-error p {
    margin: 8px 0;
    color: #666;
    line-height: 1.6;
}

.dsa-iframe-error ol {
    list-style: decimal;
    padding-left: 20px;
}

.dsa-iframe-error li {
    margin: 8px 0;
    color: #666;
}

/* Custom Trigger Buttons */
[class*="dsa-trigger-iframe-"] {
    cursor: pointer !important;
}

/* Navigation dots removed - keeping selector for backwards compatibility */
.dsa-keyframe-nav {
    display: none;
}

/* Scroll Indicator */
.dsa-scroll-indicator {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: #666;
    font-size: 14px;
    animation: dsa-bounce 2s infinite;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.dsa-scroll-indicator.is-hidden {
    opacity: 0;
    pointer-events: none;
}

@keyframes dsa-bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .dsa-section-title {
        font-size: 1.5rem;
    }

    .dsa-modal-content {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
    }

    .dsa-open-iframe-btn {
        padding: 16px 24px;
    }

    .dsa-open-iframe-btn span {
        font-size: 14px;
    }

    .dsa-iframe-modal .dsa-close-modal,
    .dsa-iframe-modal button.dsa-close-modal {
        top: 16px !important;
        right: 16px !important;
        width: 44px !important;
        height: 44px !important;
        min-width: 44px !important;
        min-height: 44px !important;
    }

    .dsa-iframe-modal .dsa-close-modal svg,
    .dsa-iframe-modal button.dsa-close-modal svg {
        width: 18px !important;
        height: 18px !important;
    }
}