/* =========================================== */
/* === /css-style-index/style.css === */
/* =========================================== */

/* 1. VARIABLES ROOT */
:root {
    --lagoon-blue: #0a7d9c;
    --lagoon-turquoise: #2ac5e0;
    --lagoon-light: #8ae1f0;
    --coral: #f8b500;
    --white-sand: #f8f9fa;
    --deep-ocean: #2785e4;
    --navy-dark: #0a5c5c;
    
    --header-height: 90px;
    --header-height-scrolled: 80px;
    
    --transition-smooth: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --transition-sensual: cubic-bezier(0.87, -0.41, 0.19, 1.44);
}

/* 2. RESET & BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.7;
    color: var(--deep-ocean);
    background: var(--white-sand);
    overflow-x: hidden;
    font-weight: 300;
    padding-top: 0;
}

h1, h2, h3, h4, 
.section-title, .footer-section h3 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    letter-spacing: -0.5px;
}

/* 3. NAVBAR SECTION */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1002;
    transition: all 0.4s var(--transition-smooth);
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(15px) !important;
    -webkit-backdrop-filter: blur(15px) !important;
    box-shadow: 0 5px 30px rgba(10, 92, 92, 0.15);
    height: var(--header-height-scrolled);
    padding: 0.8rem 2rem;
}

.logo img {
    width: 160px;
    height: auto;
    transition: transform 0.3s var(--transition-smooth);
}

.navbar.scrolled .logo img {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    list-style: none;
}

.nav-menu a {
    text-decoration: none;
    color: white;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s var(--transition-smooth);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.navbar.scrolled .nav-menu a {
    color: var(--deep-ocean) !important;
    text-shadow: none;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: var(--deep-ocean);
    color: white !important;
    transform: translateY(-2px);
}

.navbar.scrolled .nav-menu a:hover,
.navbar.scrolled .nav-menu a.active {
    background: var(--deep-ocean);
    color: white !important;
}

.dropdown {
    position: relative;
}

.dropdown > a::after {
    content: '▼';
    font-size: 0.7rem;
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.dropdown:hover > a::after {
    transform: rotate(180deg);
}

.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 280px;
    background: white;
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
    border-radius: 15px;
    padding: 1rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s var(--transition-smooth);
    z-index: 1001;
    border: 1px solid rgba(10, 92, 92, 0.1);
}

.dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-content a {
    display: block;
    padding: 0.8rem 1.5rem;
    color: var(--deep-ocean);
    transition: all 0.3s ease;
    border-radius: 0;
    font-weight: 500;
    text-shadow: none;
}

.dropdown-content a:hover {
    background: var(--lagoon-light);
    color: var(--deep-ocean);
    padding-left: 2rem;
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.whatsapp-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: white;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.2);
    transition: all 0.3s var(--transition-smooth);
    white-space: nowrap;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.navbar.scrolled .whatsapp-link {
    background: var(--lagoon-light);
    color: var(--deep-ocean) !important;
    text-shadow: none;
}

.whatsapp-link:hover {
    background: var(--lagoon-blue);
    color: white;
    transform: translateY(-2px);
}

.language-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.english-flag {
    width: 30px;
    height: 26px;
    background: url('https://upload.wikimedia.org/wikipedia/en/thumb/a/ae/Flag_of_the_United_Kingdom.svg/320px-Flag_of_the_United_Kingdom.svg.png') center/contain no-repeat;
    cursor: pointer;
    border-radius: 2px;
    border: 1px solid rgba(221, 221, 221, 0.3);
    transition: transform 0.3s ease;
}

.english-flag:hover {
    transform: scale(1.1);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    padding: 0.5rem;
    z-index: 1003;
    background: none;
    border: none;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: white;
    transition: 0.3s;
    transform-origin: center;
}

.navbar.scrolled .hamburger span {
    background: var(--deep-ocean);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* 4. HEADER SLIDER SECTION */
.header-slider {
    position: relative;
    width: 100%;
    height: 70vh;
    min-height: 600px;
    margin-top: 0;
    padding-top: var(--header-height);
    overflow: hidden;
}

.header-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s var(--transition-sensual);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: zoomDezoom 25s ease-in-out infinite alternate;
}

.header-slide.active {
    opacity: 1;
    z-index: 1;
}

@keyframes zoomDezoom {
    0%, 100% {
        transform: scale(1);
        filter: brightness(1) contrast(1);
    }
    50% {
        transform: scale(1.08);
        filter: brightness(1.1) contrast(1.05);
    }
}

.slide-content {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
    padding: 0 2rem;
    max-width: 800px;
}

.promo-tag {
    display: block;
    background: rgba(248, 181, 0, 0.85);
    color: var(--deep-ocean);
    padding: 0.8rem 2rem;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 1.5rem;
    animation: tagPulse 3s var(--transition-bounce) infinite;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

@keyframes tagPulse {
    0%, 100% {
        transform: scale(1) rotate(0deg);
        background: rgba(248, 181, 0, 0.85);
    }
    50% {
        transform: scale(1.05) rotate(1deg);
        background: rgba(10, 125, 156, 0.85);
        color: white;
    }
}

.slide-title {
    font-size: 4rem;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 
        4px 4px 25px rgba(0, 0, 0, 0.95),
        0 0 80px rgba(0, 0, 0, 0.8),
        0 0 120px rgba(0, 0, 0, 0.6);
    font-weight: 700;
    line-height: 1.1;
    animation: titleFloat 6s var(--transition-sensual) infinite alternate;
    position: relative;
}

@keyframes titleFloat {
    0% {
        transform: translateY(0) rotateX(0) scale(1);
        letter-spacing: -1px;
        text-shadow: 
            4px 4px 25px rgba(0, 0, 0, 0.95),
            0 0 80px rgba(0, 0, 0, 0.8);
    }
    100% {
        transform: translateY(-20px) rotateX(10deg) scale(1.03);
        letter-spacing: 2px;
        text-shadow: 
            0 0 40px var(--coral),
            8px 8px 35px rgba(0, 0, 0, 1),
            0 0 100px rgba(248, 181, 0, 0.4);
    }
}

.slide-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--coral);
    border-radius: 2px;
    animation: linePulse 3s ease-in-out infinite;
}

@keyframes linePulse {
    0%, 100% {
        width: 100px;
        opacity: 0.7;
    }
    50% {
        width: 200px;
        opacity: 1;
        background: var(--lagoon-turquoise);
    }
}

.slider-controls {
    position: absolute;
    bottom: 40px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 1rem;
    z-index: 3;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all 0.3s var(--transition-smooth);
}

.slider-dot.active {
    background: var(--coral);
    border-color: white;
    transform: scale(1.3);
    box-shadow: 0 0 15px var(--coral);
}

.slider-dot:hover {
    background: var(--lagoon-turquoise);
    transform: scale(1.2);
}

/* 5. ABOUT SECTION */
.about-section {
    padding: 6rem 2rem;
    background: white;
    position: relative;
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
}

.about-main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
    margin-bottom: 4rem;
}

.about-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.about-feature-box {
    background: var(--white-sand);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: all 0.3s var(--transition-smooth);
    border: 1px solid rgba(10, 92, 92, 0.08);
    min-height: 250px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.about-feature-box.only-bg {
    padding: 0;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    min-height: 250px;
}

.about-feature-box.white {
    background: white;
}

.about-feature-box .icon {
    width: 60px;
    height: 60px;
    background: var(--lagoon-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--lagoon-blue);
    font-size: 1.5rem;
}

.about-feature-box h4 {
    font-size: 1.3rem;
    color: var(--lagoon-blue);
    margin-bottom: 0.8rem;
}

.about-feature-box h4 a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

.about-feature-box h4 a:hover {
    color: var(--coral);
}

.about-feature-box p {
    color: var(--deep-ocean);
    font-size: 0.95rem;
    line-height: 1.6;
}

.about-text-content {
    opacity: 0;
    transform: translateY(30px);
}

.about-text-content .section-title {
    margin-bottom: 2rem;
}

.about-text-content .title-tag {
    display: inline-block;
    background: var(--lagoon-blue);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.about-text-content h2 {
    font-size: 2.8rem;
    color: var(--lagoon-blue);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.about-text-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--deep-ocean);
}

/* 6. VIDEO SECTION */
.video-section {
    padding: 6rem 2rem;
    background: var(--white-sand);
    position: relative;
}

.video-container {
    max-width: 1200px;
    margin: 0 auto;
}

.video-main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.video-text .title-tag {
    display: inline-block;
    background: var(--lagoon-blue);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.video-text h2 {
    font-size: 2.8rem;
    color: var(--lagoon-blue);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.video-wrap {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
    aspect-ratio: 16/9;
    background-size: cover;
    background-position: center;
}

.video-poster {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: opacity 0.5s var(--transition-smooth);
    z-index: 1;
    border-radius: 20px;
}

.video-wrap.playing .video-poster {
    opacity: 0;
    pointer-events: none;
}

.motu-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
    z-index: 0;
    display: none;
}

.video-wrap.playing .motu-video {
    display: block;
}

.video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 2;
    border-radius: 0 0 20px 20px;
    opacity: 0;
    transition: opacity 0.3s var(--transition-smooth);
}

.video-wrap:hover .video-controls,
.video-wrap.playing .video-controls {
    opacity: 1;
}

.play-btn {
    width: 50px;
    height: 50px;
    background: var(--coral);
    border: none;
    border-radius: 50%;
    color: var(--deep-ocean);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
}

.play-btn:hover {
    background: var(--lagoon-blue);
    color: white;
    transform: scale(1.1);
}

.video-progress {
    flex: 1;
    height: 6px;
    background: rgba(255,255,255,0.3);
    border-radius: 3px;
    overflow: hidden;
    cursor: pointer;
}

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

.fullscreen-btn {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.2);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.fullscreen-btn:hover {
    background: var(--coral);
    color: var(--deep-ocean);
    transform: scale(1.1);
}

/* 7. UNDERWATER SECTION */
.underwater-section {
    position: relative;
    padding: 8rem 2rem;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    text-align: center;
    color: white;
    overflow: hidden;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.underwater-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, 
        rgba(10, 92, 92, 0.5),
        rgba(42, 197, 224, 0.3));
    z-index: 1;
}

.underwater-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.underwater-content h2 {
    font-size: 3rem;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
}

/* 8. TOURS SLIDER SECTION */
.other-tours-section {
    padding: 5rem 2rem;
    background: var(--white-sand);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header .promo-tag {
    background: var(--lagoon-blue);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    display: inline-block;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: 2.2rem;
    color: var(--lagoon-blue);
    margin-bottom: 2rem;
}

.tours-slider-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    padding: 0 1rem;
}

.tours-slider {
    display: flex;
    transition: transform 0.5s var(--transition-smooth);
    gap: 1.5rem;
    padding: 1rem 0.5rem;
    will-change: transform;
}

.tours-slider.no-transition {
    transition: none !important;
}

.tour-card {
    min-width: 300px;
    max-width: 320px;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: all 0.3s var(--transition-smooth);
    border: 1px solid rgba(10, 92, 92, 0.08);
    flex-shrink: 0;
    margin: 0 auto;
}

.tour-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.12);
}

.tour-image-slide {
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
    transition: transform 0.5s var(--transition-smooth);
}

.tour-card:hover .tour-image-slide {
    transform: scale(1.03);
}

.tour-price {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--coral);
    color: var(--deep-ocean);
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0 4px 12px rgba(248, 181, 0, 0.25);
    z-index: 2;
}

.tour-content-slide {
    padding: 1.5rem;
}

.tour-content-slide h3 {
    font-size: 1.3rem;
    color: var(--deep-ocean) !important;
    margin-bottom: 0.8rem;
    line-height: 1.3;
    min-height: 3.2em;
}

.tour-content-slide a {
    text-decoration: none;
    color: inherit;
}

.tour-content-slide .book-btn {
    color: white !important;
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    letter-spacing: -0.5px;
    font-size: 1.1rem;
    margin-top: 1rem;
    width: 100%;
    text-align: center;
}

.tour-content-slide .book-btn:hover {
    color: white !important;
}

.slider-controls-tours {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    padding: 0 1rem;
}

.slider-arrow {
    width: 45px;
    height: 45px;
    background: var(--lagoon-blue);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.slider-arrow::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.7s ease;
}

.slider-arrow:hover {
    background: var(--coral);
    transform: scale(1.05);
}

.slider-arrow:hover::before {
    left: 100%;
}

/* 9. PARTNERS SECTION */
.partners-section {
    padding: 4rem 2rem;
    background: var(--white-sand);
    text-align: center;
}

.partners-section h2 {
    font-size: 2.5rem;
    color: var(--lagoon-blue);
    margin-bottom: 3rem;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 2rem auto 0;
}

.partner-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s var(--transition-smooth);
    text-align: left;
}

.partner-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.partner-card img {
    max-width: 120px;
    height: auto;
    margin-bottom: 1rem;
}

.partner-card h3 {
    font-size: 1.5rem;
    color: var(--lagoon-blue);
    margin-bottom: 1rem;
}

.partner-card p {
    color: var(--deep-ocean);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

/* 10. FOOTER SECTION */
.footer {
    background: linear-gradient(135deg, var(--lagoon-blue), var(--deep-ocean));
    color: white;
    padding: 4rem 2rem 2rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    color: var(--lagoon-light);
    font-size: 1.3rem;
}

.footer-section p {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.footer-section i {
    width: 20px;
    text-align: center;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: all 0.3s var(--transition-smooth);
}

.social-links a:hover {
    background: var(--coral);
    transform: scale(1.1);
}

.copyright {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.2);
    color: var(--lagoon-light);
    font-size: 0.9rem;
}

/* 11. BOUTONS GÉNÉRAUX */
.book-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    background: linear-gradient(135deg, var(--lagoon-blue), var(--lagoon-turquoise));
    color: white;
    padding: 1rem 2rem;
    border-radius: 35px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.book-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.7s ease;
}

.book-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(10, 125, 156, 0.3);
    color: white !important;
}

.book-btn:hover::before {
    left: 100%;
}

/* 12. ANIMATIONS */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes coralBloom {
    0% {
        opacity: 0;
        transform: scale(0) rotate(-180deg);
        filter: blur(20px) hue-rotate(180deg);
        letter-spacing: 30px;
    }
    60% {
        transform: scale(1.15) rotate(12deg);
        filter: blur(0) hue-rotate(90deg);
        background: linear-gradient(45deg, var(--coral), #ffcc00);
    }
    80% {
        transform: scale(0.95) rotate(-3deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotate(0);
        letter-spacing: 1.5px;
        background: var(--lagoon-blue);
        box-shadow: 0 10px 30px rgba(10, 125, 156, 0.4);
    }
}

/* 13. RESPONSIVE DESIGN */
@media (max-width: 1024px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: white;
        flex-direction: column;
        justify-content: flex-start;
        padding: 2rem;
        transition: left 0.3s var(--transition-smooth);
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        gap: 1rem;
        z-index: 999;
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu a {
        width: 100%;
        text-align: center;
        padding: 1rem;
        font-size: 1.2rem;
        color: var(--deep-ocean) !important;
        text-shadow: none !important;
    }

    .dropdown-content {
        position: static;
        box-shadow: none;
        border: none;
        display: none;
        width: 100%;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: var(--white-sand);
        margin-top: 0.5rem;
        border-radius: 15px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .dropdown.active .dropdown-content {
        display: block;
        max-height: 500px;
    }

    .dropdown > a::after {
        content: '▼';
        float: right;
        transition: transform 0.3s ease;
    }

    .dropdown.active > a::after {
        transform: rotate(180deg);
    }

    .header-slider {
        height: 60vh;
        min-height: 500px;
    }

    .slide-title {
        font-size: 3.2rem;
    }

    .about-main-content,
    .video-main-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-features-grid {
        grid-template-columns: 1fr;
    }

    .partners-grid {
        grid-template-columns: 1fr;
    }

    .tours-slider-container {
        max-width: 800px;
        padding: 0 0.5rem;
    }
    
    .tours-slider {
        gap: 1rem;
    }
    
    .tour-card {
        min-width: 280px;
        max-width: 300px;
    }
    
    .tour-image-slide {
        height: 180px;
    }
    
    .tour-content-slide {
        padding: 1.2rem;
    }
    
    .tour-content-slide h3 {
        font-size: 1.2rem;
        min-height: 3em;
    }

    .header-contact {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: flex-end !important;
        gap: 10px !important;
        flex-wrap: nowrap !important;
        width: auto !important;
        margin-left: auto !important;
    }
    
    .whatsapp-link {
        display: inline-flex !important;
        align-items: center !important;
        padding: 6px 12px !important;
        font-size: 13px !important;
        font-weight: 600 !important;
        white-space: nowrap !important;
        max-width: 160px !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        flex-shrink: 1 !important;
        min-width: 0 !important;
        box-sizing: border-box !important;
    }
    
    .whatsapp-link > span,
    .whatsapp-link i + * {
        display: none !important;
    }
    
    .whatsapp-link::after {
        content: "87 79 11 62" !important;
        font-weight: 600 !important;
    }
    
    .language-switcher {
        flex-shrink: 0 !important;
        display: flex !important;
        align-items: center !important;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }

    .logo img {
        width: 140px;
    }

    .header-slider {
        height: 50vh;
        min-height: 400px;
    }

    .slide-title {
        font-size: 2.5rem;
    }

    .promo-tag {
        font-size: 0.9rem;
        padding: 0.6rem 1.5rem;
    }

    .about-text-content h2,
    .video-text h2,
    .underwater-content h2 {
        font-size: 2.2rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .partners-section h2 {
        font-size: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .whatsapp-link {
        max-width: 140px !important;
        padding: 5px 10px !important;
        font-size: 12px !important;
    }
    
    .whatsapp-link::after {
        content: "87 79..." !important;
    }
}

@media (max-width: 480px) {
    .header-slider {
        height: 40vh;
        min-height: 300px;
    }

    .slide-title {
        font-size: 2rem;
    }

    .promo-tag {
        font-size: 0.8rem;
        padding: 0.5rem 1.2rem;
    }

    .about-text-content h2,
    .video-text h2 {
        font-size: 1.8rem;
    }

    .book-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    .about-feature-box,
    .tour-card,
    .partner-card {
        padding: 1.5rem;
    }

    .section-header h2,
    .partners-section h2 {
        font-size: 1.8rem;
    }

    .whatsapp-link {
        max-width: 120px !important;
        padding: 4px 8px !important;
    }
    
    .whatsapp-link::after {
        content: "WhatsApp" !important;
    }
}