/* ===================================
   Advanced Hero Carousel - Marine Engineering Theme
   =================================== */

/* Color Variables - Marine Engineering Theme */
:root {
    --navy-blue: #001f3f;
    --safety-yellow: #ffa500;
    --white: #ffffff;
    --dark-overlay: rgba(0, 31, 63, 0.6);
}

/* Hero Container */
.hero-advanced {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    margin-top: 80px;
}

/* Slide Container */
.hero-slides-advanced {
    position: relative;
    width: 100%;
    height: 100%;
}

/* Individual Slide */
.hero-slide-advanced {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1.2s ease-in-out;
    z-index: 1;
}

.hero-slide-advanced.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

/* Background Layer with Ken Burns Effect */
.slide-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transform: scale(1);
    animation: kenBurnsZoom 10s ease-out forwards;
}

@keyframes kenBurnsZoom {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.15);
    }
}

/* Dark Overlay */
.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-overlay);
    z-index: 1;
}

/* Hero Asset Layer (Parallax PNG) */
.slide-hero-asset {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: auto;
    height: auto;
    z-index: 2;
    opacity: 0;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.5));
}

.hero-slide-advanced.active .slide-hero-asset {
    animation: fadeInAsset 1s ease-out 0.3s forwards;
}

@keyframes fadeInAsset {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* Slide 1 - Ship Drift Animation */
.slide-1 .slide-hero-asset {
    animation: shipDrift 10s ease-in-out infinite, fadeInAsset 1s ease-out 0.3s forwards;
}

@keyframes shipDrift {
    0% {
        left: 65%;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        left: 50%;
        transform: translate(-50%, -50%) scale(1.05);
    }
    100% {
        left: 35%;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* Slide 2 - Rocking Motion (Like waves) */
.slide-2 .slide-hero-asset {
    animation: rockingMotion 2.5s ease-in-out infinite, fadeInAsset 1s ease-out 0.3s forwards;
}

@keyframes rockingMotion {
    0%, 100% {
        transform: translate(-50%, -50%) rotate(-5deg) scale(1);
    }
    25% {
        transform: translate(-50%, -50%) rotate(0deg) scale(1.02);
    }
    50% {
        transform: translate(-50%, -50%) rotate(5deg) scale(1);
    }
    75% {
        transform: translate(-50%, -50%) rotate(0deg) scale(1.02);
    }
}

/* Slide 3 - Delayed Fade */
.slide-3 .slide-hero-asset {
    animation: fadeInAsset 1.5s ease-out 0.8s forwards;
}

/* Slide 4 - Floating Motion (Underwater feel) */
.slide-4 .slide-hero-asset {
    animation: floatingMotion 3.5s ease-in-out infinite, fadeInAsset 1s ease-out 0.3s forwards;
}

@keyframes floatingMotion {
    0%, 100% {
        transform: translate(-50%, -50%) translateY(-20px) scale(1);
    }
    25% {
        transform: translate(-50%, -50%) translateY(-10px) scale(1.03);
    }
    50% {
        transform: translate(-50%, -50%) translateY(20px) scale(1);
    }
    75% {
        transform: translate(-50%, -50%) translateY(10px) scale(1.03);
    }
}

/* Slide 5 - Rapid Slide In (Speed effect) */
.slide-5 .slide-hero-asset {
    animation: rapidSlideIn 1.2s cubic-bezier(0.68, -0.55, 0.265, 1.55) 0.3s forwards;
}

@keyframes rapidSlideIn {
    0% {
        opacity: 0;
        left: -30%;
        transform: translate(-50%, -50%) scale(0.7) rotate(-10deg);
    }
    60% {
        opacity: 1;
        left: 55%;
        transform: translate(-50%, -50%) scale(1.1) rotate(5deg);
    }
    100% {
        opacity: 1;
        left: 50%;
        transform: translate(-50%, -50%) scale(1) rotate(0deg);
    }
}

/* Content Layer */
.slide-content-advanced {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 3;
    width: 90%;
    max-width: 1000px;
    color: var(--white);
}

/* Heading with Clip-Path Animation */
.slide-title-advanced {
    font-size: 60px;
    font-weight: 900;
    margin-bottom: 20px;
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--white);
    text-shadow: 3px 3px 10px rgba(0, 0, 0, 0.7);
    overflow: hidden;
}

.slide-title-advanced span {
    display: inline-block;
    opacity: 0;
    clip-path: polygon(0 0, 0 0, 0 100%, 0% 100%);
}

.hero-slide-advanced.active .slide-title-advanced span {
    animation: clipPathReveal 1.2s cubic-bezier(0.77, 0, 0.175, 1) forwards;
}

@keyframes clipPathReveal {
    0% {
        opacity: 0;
        clip-path: polygon(0 0, 0 0, 0 100%, 0% 100%);
        transform: translateX(-30px);
    }
    100% {
        opacity: 1;
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
        transform: translateX(0);
    }
}

/* Stagger animation for words */
.hero-slide-advanced.active .slide-title-advanced span:nth-child(1) {
    animation-delay: 0.1s;
}
.hero-slide-advanced.active .slide-title-advanced span:nth-child(2) {
    animation-delay: 0.2s;
}
.hero-slide-advanced.active .slide-title-advanced span:nth-child(3) {
    animation-delay: 0.3s;
}
.hero-slide-advanced.active .slide-title-advanced span:nth-child(4) {
    animation-delay: 0.4s;
}

/* Description Text */
.slide-description-advanced {
    font-size: 22px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 30px;
    opacity: 0;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.6);
}

.hero-slide-advanced.active .slide-description-advanced {
    animation: fadeInUp 1s ease-out 0.6s forwards;
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* CTA Buttons */
.slide-buttons-advanced {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
}

.hero-slide-advanced.active .slide-buttons-advanced {
    animation: fadeInUp 1s ease-out 0.9s forwards;
}

.btn-hero-primary {
    padding: 16px 40px;
    background: var(--safety-yellow);
    color: var(--navy-blue);
    font-size: 16px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid var(--safety-yellow);
    border-radius: 0;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-hero-primary:hover {
    background: transparent;
    color: var(--safety-yellow);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 165, 0, 0.3);
}

.btn-hero-secondary {
    padding: 16px 40px;
    background: transparent;
    color: var(--white);
    font-size: 16px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid var(--white);
    border-radius: 0;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-hero-secondary:hover {
    background: var(--white);
    color: var(--navy-blue);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

/* Navigation Arrows */
.hero-arrow-advanced {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 165, 0, 0.3);
    backdrop-filter: blur(10px);
    border: 2px solid var(--safety-yellow);
    color: var(--white);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    font-size: 24px;
}

.hero-arrow-advanced:hover {
    background: var(--safety-yellow);
    transform: translateY(-50%) scale(1.1);
}

.hero-prev-advanced {
    left: 30px;
}

.hero-next-advanced {
    right: 30px;
}

/* Progress Bar Container */
.hero-progress-container {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    z-index: 10;
}

.hero-progress-bar {
    height: 100%;
    background: var(--safety-yellow);
    width: 0%;
    transition: width 0.1s linear;
}

.hero-slide-advanced.active .hero-progress-bar {
    animation: progressFill 8s linear forwards;
}

@keyframes progressFill {
    0% {
        width: 0%;
    }
    100% {
        width: 100%;
    }
}

/* Slide Indicators */
.hero-indicators-advanced {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.hero-dot-advanced {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: 2px solid var(--white);
    cursor: pointer;
    transition: all 0.3s ease;
}

.hero-dot-advanced.active {
    background: var(--safety-yellow);
    border-color: var(--safety-yellow);
    transform: scale(1.3);
}

.hero-dot-advanced:hover {
    background: rgba(255, 165, 0, 0.7);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .slide-title-advanced {
        font-size: 48px;
    }
    
    .slide-description-advanced {
        font-size: 18px;
    }
    
    .slide-hero-asset {
        max-width: 600px;
    }
}

@media (max-width: 768px) {
    .hero-advanced {
        height: 80vh;
        margin-top: 80px;
    }
    
    .slide-title-advanced {
        font-size: 32px;
    }
    
    .slide-description-advanced {
        font-size: 16px;
    }
    
    .slide-buttons-advanced {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-hero-primary,
    .btn-hero-secondary {
        width: 100%;
        padding: 14px 30px;
        font-size: 14px;
    }
    
    .hero-arrow-advanced {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    .hero-prev-advanced {
        left: 15px;
    }
    
    .hero-next-advanced {
        right: 15px;
    }
    
    .slide-hero-asset {
        max-width: 400px;
        opacity: 0.2 !important;
    }
}

@media (max-width: 480px) {
    .slide-title-advanced {
        font-size: 24px;
        letter-spacing: 1px;
    }
    
    .slide-description-advanced {
        font-size: 14px;
    }
    
    .hero-indicators-advanced {
        bottom: 15px;
        gap: 8px;
    }
    
    .hero-dot-advanced {
        width: 10px;
        height: 10px;
    }
}