/**
 * Story Page - Mobile 3D Carousel Styles
 * Dedicated styles for mobile story timeline carousel
 * Only loads on mobile devices for the story page
 */

/* ========================================
   MOBILE STORY SECTION
   ======================================== */

/* Show mobile version only on mobile devices */
.homepage-story-mobile {
    display: none;
    padding: 4rem 0;
    background: var(--homepage-bg-dark, #050505);
    overflow: hidden;
}

@media (max-width: 768px) {
    .homepage-story-mobile {
        display: block;
    }
    
    .homepage-story-desktop {
        display: none !important;
    }
}

/* ========================================
   3D CAROUSEL CONTAINER
   ======================================== */

.story-mobile-timeline-container {
    perspective: 1200px;
    perspective-origin: center center;
    margin-top: 2rem;
    position: relative;
    min-height: 580px;
    width: 100%;
}

.story-mobile-timeline {
    position: relative;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 0;
    overflow: visible;
    padding: 3rem 0;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 500px;
}

/* ========================================
   MILESTONE CARDS
   ======================================== */

.story-milestone-mobile {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 85vw;
    max-width: 320px;
    height: 480px;
    background: rgba(17, 17, 26, 0.95);
    border: 2px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center center;
    cursor: pointer;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    will-change: transform, opacity;
    display: flex;
    flex-direction: column;
}

/* ========================================
   CARD POSITIONING (3D EFFECT)
   ======================================== */

/* Center card - fully visible and prominent */
.story-milestone-mobile[data-position="0"] {
    transform: translate(-50%, -50%) translateZ(0) scale(1);
    opacity: 1;
    z-index: 10;
    pointer-events: all;
    border-color: #F1C40F;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 
                0 0 30px rgba(241, 196, 15, 0.3);
}

/* Right side card (+1) - Hidden */
.story-milestone-mobile[data-position="1"] {
    transform: translate(-50%, -50%) translateX(120%) translateZ(-400px) scale(0.5);
    opacity: 0;
    z-index: 2;
    pointer-events: none;
    border-color: rgba(255, 255, 255, 0.08);
}

/* Left side card (-1) - Hidden */
.story-milestone-mobile[data-position="-1"] {
    transform: translate(-50%, -50%) translateX(-120%) translateZ(-400px) scale(0.5);
    opacity: 0;
    z-index: 2;
    pointer-events: none;
    border-color: rgba(255, 255, 255, 0.08);
}

/* Far right card (+2) */
.story-milestone-mobile[data-position="2"] {
    transform: translate(-50%, -50%) translateX(170%) translateZ(-400px) scale(0.5) rotateY(-25deg);
    opacity: 0.3;
    z-index: 2;
    pointer-events: none;
}

/* Far left card (-2) */
.story-milestone-mobile[data-position="-2"] {
    transform: translate(-50%, -50%) translateX(-170%) translateZ(-400px) scale(0.5) rotateY(25deg);
    opacity: 0.3;
    z-index: 2;
    pointer-events: none;
}

/* Hidden cards (beyond ±2) */
.story-milestone-mobile[data-position="3"],
.story-milestone-mobile[data-position="-3"],
.story-milestone-mobile[data-position="4"],
.story-milestone-mobile[data-position="-4"],
.story-milestone-mobile[data-position="5"],
.story-milestone-mobile[data-position="-5"],
.story-milestone-mobile[data-position="6"],
.story-milestone-mobile[data-position="-6"],
.story-milestone-mobile[data-position="7"],
.story-milestone-mobile[data-position="-7"],
.story-milestone-mobile[data-position="8"],
.story-milestone-mobile[data-position="-8"],
.story-milestone-mobile[data-position="9"],
.story-milestone-mobile[data-position="-9"],
.story-milestone-mobile[data-position="10"],
.story-milestone-mobile[data-position="-10"] {
    transform: translate(-50%, -50%) translateZ(-600px) scale(0.3);
    opacity: 0;
    pointer-events: none;
    z-index: 0;
}

/* ========================================
   CARD IMAGE SECTION
   ======================================== */

.story-milestone-image {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: #000;
}

.story-milestone-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.story-milestone-mobile[data-position="0"] .story-milestone-image img {
    transform: scale(1.05);
}

/* Subtle gradient overlay on image */
.story-milestone-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.7));
    pointer-events: none;
}

/* ========================================
   CARD CONTENT SECTION
   ======================================== */

.story-milestone-content {
    flex: 1;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    background: rgba(0, 0, 0, 0.9);
    position: relative;
}

/* Year badge */
.story-milestone-content .story-year {
    font-size: 13px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 600;
    display: block;
}

/* Title */
.story-milestone-content .story-title {
    font-size: 18px;
    font-weight: 700;
    color: #F1C40F;
    margin: 0;
    line-height: 1.3;
    font-family: 'Urbanist', sans-serif;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Description */
.story-milestone-content .story-description {
    font-size: 14px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Era badge */
.story-milestone-content .story-era {
    font-size: 11px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #F1C40F;
    font-weight: 600;
    padding: 0.4rem 0.8rem;
    background: rgba(241, 196, 15, 0.1);
    border: 1px solid rgba(241, 196, 15, 0.3);
    border-radius: 20px;
    display: inline-block;
    align-self: flex-start;
}

/* ========================================
   ACTIVE CARD GLOW EFFECT
   ======================================== */

.story-milestone-mobile[data-position="0"]::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #F1C40F, transparent);
    border-radius: 16px;
    z-index: -1;
    opacity: 0.4;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { 
        opacity: 0.3;
        transform: scale(1);
    }
    50% { 
        opacity: 0.5;
        transform: scale(1.02);
    }
}

/* ========================================
   NAVIGATION CONTROLS
   ======================================== */

/* Navigation Arrows */
.story-mobile-nav-arrows {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 1rem;
    pointer-events: none;
    z-index: 15;
}

.story-mobile-nav-arrow {
    width: 44px;
    height: 44px;
    padding: 8px;
    border-radius: 50%;
    background: rgba(241, 196, 15, 0.15);
    border: 2px solid #F1C40F;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    pointer-events: all;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.story-mobile-nav-arrow:active {
    transform: scale(0.95);
}

.story-mobile-nav-arrow:hover {
    background: rgba(241, 196, 15, 0.3);
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(241, 196, 15, 0.5);
}

.story-mobile-nav-arrow img {
    width: 20px;
    height: 20px;
    display: block;
}

/* Progress Dots */
.story-mobile-progress-dots {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.8rem;
    margin-top: 2rem;
    padding: 1rem 0;
    flex-wrap: wrap;
}

.story-mobile-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.story-mobile-dot.active {
    background: #F1C40F;
    border-color: #F1C40F;
    box-shadow: 0 0 20px rgba(241, 196, 15, 0.6);
    transform: scale(1.4);
}

.story-mobile-dot:not(.active):hover {
    background: rgba(241, 196, 15, 0.5);
    transform: scale(1.2);
}

/* Swipe Hint */
.story-mobile-swipe-hint {
    text-align: center;
    color: #F1C40F;
    font-size: 0.85rem;
    margin-top: 1rem;
    opacity: 0.7;
    animation: fade-pulse 2s ease-in-out infinite;
    font-weight: 500;
    letter-spacing: 0.5px;
}

@keyframes fade-pulse {
    0%, 100% { 
        opacity: 0.5;
        transform: translateY(0);
    }
    50% { 
        opacity: 0.9;
        transform: translateY(-2px);
    }
}

/* ========================================
   FALLBACK FOR NON-3D BROWSERS
   ======================================== */

@supports not (transform-style: preserve-3d) {
    .story-mobile-timeline {
        transform-style: flat;
    }
    
    .story-milestone-mobile[data-position="0"] {
        transform: translate(-50%, -50%) scale(1);
    }
    
    .story-milestone-mobile[data-position="-1"],
    .story-milestone-mobile[data-position="1"] {
        transform: translate(-50%, -50%) scale(0.85);
    }
}

/* ========================================
   RESPONSIVE ADJUSTMENTS
   ======================================== */

/* Smaller phones (< 375px) */
@media (max-width: 374px) {
    .story-milestone-mobile {
        width: 90vw;
        max-width: 280px;
        height: 450px;
    }
    
    .story-milestone-image {
        height: 220px;
    }
    
    .story-milestone-content {
        padding: 1.25rem;
        gap: 0.6rem;
    }
    
    .story-milestone-content .story-title {
        font-size: 16px;
    }
    
    .story-milestone-content .story-description {
        font-size: 13px;
        -webkit-line-clamp: 3;
    }
    
    .story-mobile-nav-arrow {
        width: 38px;
        height: 38px;
        padding: 6px;
    }
    
    .story-mobile-nav-arrow img {
        width: 18px;
        height: 18px;
    }
    
    .story-mobile-timeline-container {
        min-height: 550px;
    }
}

/* Larger phones and small tablets (375px - 480px) */
@media (min-width: 375px) and (max-width: 480px) {
    .story-milestone-mobile {
        max-width: 340px;
    }
}

/* Landscape orientation adjustments */
@media (max-width: 768px) and (orientation: landscape) {
    .story-mobile-timeline-container {
        min-height: 450px;
    }
    
    .story-milestone-mobile {
        height: 380px;
    }
    
    .story-milestone-image {
        height: 180px;
    }
    
    .story-milestone-content {
        padding: 1rem;
    }
    
    .story-milestone-content .story-description {
        -webkit-line-clamp: 3;
    }
}

/* ========================================
   TOUCH OPTIMIZATION
   ======================================== */

.story-milestone-mobile,
.story-mobile-nav-arrow,
.story-mobile-dot {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

/* Prevent text selection during swipe */
.story-mobile-timeline-container * {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* ========================================
   PERFORMANCE OPTIMIZATION
   ======================================== */

.story-milestone-mobile {
    contain: layout style paint;
}

/* Disable AOS animations on mobile carousel */
.story-mobile-timeline-container[data-aos],
.story-milestone-mobile[data-aos] {
    opacity: 1 !important;
    transform: none !important;
    transition-property: none !important;
}

/* ========================================
   ACCESSIBILITY
   ======================================== */

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .story-milestone-mobile,
    .story-mobile-timeline,
    .story-mobile-nav-arrow,
    .story-mobile-dot {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
    
    .story-milestone-mobile[data-position="0"]::before {
        animation: none;
    }
    
    .story-mobile-swipe-hint {
        animation: none;
        opacity: 0.7;
    }
}

/* Focus styles for keyboard navigation */
.story-mobile-nav-arrow:focus,
.story-mobile-dot:focus {
    outline: 2px solid #F1C40F;
    outline-offset: 4px;
}

.story-milestone-mobile:focus {
    outline: 3px solid #F1C40F;
    outline-offset: 4px;
}