:root {
            --snorkel-bg: #072930; /* Warm deep tropical ocean teal, less dark & scary */
            --snorkel-dark: #041b20; /* Deep rich lagoon teal */
            --snorkel-teal: #14a0b8;
            --snorkel-glow: #00e5ff;
            --snorkel-accent: #b2fff0;
            --snorkel-coral: #CD6821;
            --text-light: #faf8f5;
        }

        body.snorkel-page {
            background-color: var(--snorkel-bg);
            color: var(--text-light);
            margin: 0;
            overflow-x: hidden;
            font-family: 'Outfit', sans-serif;
        }

        /* Hero section */
        .snorkel-hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 2rem;
            background: linear-gradient(rgba(1, 12, 17, 0.45), var(--snorkel-bg)), 
                        url('../assets/underwater_mangrove_roots_1775399428231.png');
            background-size: cover;
            background-position: center;
            z-index: 1;
        }

        .snorkel-hero-overlay {
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: radial-gradient(circle, transparent 20%, var(--snorkel-bg) 95%);
            pointer-events: none;
        }

        .snorkel-title {
            font-family: 'Abril Fatface', cursive;
            font-size: clamp(3rem, 10vw, 5.5rem);
            color: #fff;
            text-shadow: 0 0 35px rgba(0, 212, 255, 0.5);
            margin-bottom: 1rem;
            line-height: 1.1;
        }

        .snorkel-subtitle {
            font-size: 1.4rem;
            color: var(--snorkel-glow);
            letter-spacing: 5px;
            text-transform: uppercase;
            font-weight: 300;
        }

        /* Intro Section */
        .snorkel-intro {
            padding: 6rem 2rem;
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }

        .snorkel-intro-card {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(0, 212, 255, 0.15);
            padding: 3.5rem;
            border-radius: 24px;
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            box-shadow: 0 20px 50px rgba(0,0,0,0.5);
        }

        .snorkel-intro-card p {
            font-size: 1.25rem;
            line-height: 1.8;
            color: #b0c4cf;
            margin-bottom: 2rem;
        }

        /* Interactive Map Section */
        .map-section {
            padding: 6rem 2rem;
            background: linear-gradient(to bottom, var(--snorkel-bg), var(--snorkel-dark));
            text-align: center;
        }

        .map-container {
            max-width: 1100px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        @media (max-width: 960px) {
            .map-container {
                grid-template-columns: 1fr;
            }
        }

        .map-wrapper {
            background: #052026;
            border: 2px solid rgba(0, 212, 255, 0.2);
            border-radius: 24px;
            padding: 1.5rem;
            position: relative;
            overflow: hidden;
            box-shadow: 0 30px 80px rgba(0,0,0,0.6);
        }

        .svg-map {
            width: 100%;
            height: auto;
            display: block;
        }

        .map-grid-lines {
            stroke: rgba(0, 212, 255, 0.05);
            stroke-width: 1;
        }

        .map-pin {
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .map-pin circle.pulse {
            animation: pulse-ring 2s infinite ease-out;
            transform-origin: center;
        }

        @keyframes pulse-ring {
            0% { transform: scale(0.6); opacity: 0.9; }
            100% { transform: scale(1.8); opacity: 0; }
        }

        .map-pin:hover circle.core,
        .map-pin.active circle.core {
            fill: var(--snorkel-accent);
            filter: drop-shadow(0 0 8px var(--snorkel-glow));
        }

        .map-info-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 2.5rem;
            text-align: left;
            backdrop-filter: blur(10px);
            min-height: 350px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }

        .map-info-title {
            font-family: 'Abril Fatface', cursive;
            font-size: 2.2rem;
            color: #fff;
            margin-bottom: 0.5rem;
            text-shadow: 0 2px 10px rgba(0,0,0,0.3);
        }

        .map-info-coords {
            font-family: monospace;
            font-size: 0.95rem;
            color: var(--snorkel-glow);
            letter-spacing: 1px;
            margin-bottom: 1.5rem;
        }

        .map-info-desc {
            font-size: 1.1rem;
            line-height: 1.7;
            color: #b0c4cf;
            margin-bottom: 1.5rem;
        }

        .map-info-tip {
            border-left: 3px solid var(--snorkel-glow);
            padding-left: 1rem;
            font-style: italic;
            color: var(--snorkel-accent);
            font-size: 1rem;
        }

        /* Split Scroll Wildlife Section */
        .wildlife-section {
            position: relative;
            background: var(--snorkel-dark);
            padding: 6rem 0;
        }

        .wildlife-container {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 4rem;
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
        }

        @media (max-width: 960px) {
            .wildlife-container {
                grid-template-columns: 1fr;
                padding: 0 2rem;
            }
        }

        .wildlife-visual {
            position: sticky;
            top: 15vh;
            height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2;
        }

        @media (max-width: 960px) {
            .wildlife-visual {
                position: relative;
                top: 0;
                height: 50vh;
                margin-bottom: 2rem;
            }
        }

        .wildlife-frame {
            position: relative;
            width: 100%;
            max-width: 450px;
            aspect-ratio: 1 / 1;
            border-radius: 40px;
            overflow: hidden;
            box-shadow: 0 40px 100px rgba(0,0,0,0.6);
            border: 2px solid rgba(0, 212, 255, 0.3);
            background: #052026;
        }

        .wildlife-img {
            position: absolute;
            top: 0; left: 0;
            width: 100%; height: 100%;
            object-fit: cover;
            opacity: 0;
            transition: opacity 0.6s ease-in-out, transform 1s cubic-bezier(0.16, 1, 0.3, 1);
            transform: scale(1.1);
        }

        .wildlife-img.active {
            opacity: 1;
            transform: scale(1);
        }

        .wildlife-text-track {
            position: relative;
            z-index: 1;
            padding-bottom: 10vh;
        }

        .wildlife-block {
            min-height: 75vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 2rem;
            opacity: 0.65; /* Highly readable when inactive */
            transition: all 0.5s ease;
        }

        @media (max-width: 960px) {
            .wildlife-block {
                min-height: auto;
                padding: 3rem 0;
                opacity: 1;
            }
        }

        .wildlife-block.active {
            opacity: 1;
        }

        .wildlife-block h3 {
            font-family: 'Abril Fatface', cursive;
            font-size: 2.8rem;
            color: #8beaff; /* Softer, readable cyan when inactive */
            margin-bottom: 1rem;
            transition: color 0.3s ease;
        }

        .wildlife-block.active h3 {
            color: var(--snorkel-glow); /* Glowing active cyan */
            text-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
        }

        .wildlife-block p {
            font-size: 1.2rem;
            line-height: 1.7;
            color: #e2f0f5; /* Bright warm light blue-grey for legibility */
            transition: color 0.3s ease;
        }

        .wildlife-block.active p {
            color: #ffffff; /* pure white active text */
        }

        /* Tide Visibility Guide Widget */
        .tide-section {
            padding: 6rem 2rem;
            background: linear-gradient(to bottom, var(--snorkel-dark), var(--snorkel-bg));
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .tide-card {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(0, 212, 255, 0.15);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 3.5rem;
            border-radius: 28px;
            max-width: 950px;
            width: 100%;
            box-shadow: 0 40px 100px rgba(0, 0, 0, 0.6);
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 4rem;
        }

        @media (max-width: 860px) {
            .tide-card {
                grid-template-columns: 1fr;
                gap: 2.5rem;
                padding: 2rem;
            }
        }

        .tide-left {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .tide-left h2 {
            font-family: 'Abril Fatface', cursive;
            font-size: 2.5rem;
            color: #fff;
            margin-top: 0;
            margin-bottom: 1rem;
        }

        .tide-left p {
            color: #b0c4cf;
            line-height: 1.7;
            margin-bottom: 2.5rem;
        }

        .tide-slider-container {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .slider-labels {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--snorkel-glow);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* Customized HTML5 Range Slider */
        .tide-slider {
            -webkit-appearance: none;
            width: 100%;
            height: 8px;
            border-radius: 5px;
            background: rgba(255, 255, 255, 0.1);
            outline: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .tide-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--snorkel-glow);
            border: 2px solid var(--snorkel-accent);
            box-shadow: 0 0 15px var(--snorkel-glow);
            transition: transform 0.2s ease, background-color 0.2s ease;
        }

        .tide-slider::-webkit-slider-thumb:hover {
            transform: scale(1.15);
            background: var(--snorkel-accent);
        }

        .tide-right {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: rgba(1, 8, 11, 0.4);
            border: 1px solid rgba(0, 212, 255, 0.1);
            border-radius: 24px;
            padding: 2.5rem;
            position: relative;
            overflow: hidden;
            min-height: 350px;
        }

        .tide-preview-frame {
            position: relative;
            width: 100%;
            height: 160px;
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 2rem;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .tide-preview-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: filter 0.1s linear;
        }

        .tide-turbidity-overlay {
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: linear-gradient(135deg, rgba(84, 76, 54, 0.85) 0%, rgba(30, 48, 41, 0.8) 100%);
            mix-blend-mode: multiply;
            transition: opacity 0.1s linear;
            pointer-events: none;
        }

        .tide-status-badge {
            display: inline-block;
            padding: 0.5rem 1.5rem;
            border-radius: 30px;
            font-weight: bold;
            text-transform: uppercase;
            font-size: 0.85rem;
            letter-spacing: 1px;
            margin-bottom: 1.25rem;
            border: 1px solid transparent;
            transition: all 0.3s ease;
        }

        /* Gear packing checklist section */
        .checklist-section {
            padding: 6rem 2rem;
            background: var(--snorkel-bg);
            text-align: center;
        }

        .checklist-title {
            font-family: 'Abril Fatface', cursive;
            font-size: 3rem;
            color: #fff;
            margin-bottom: 1rem;
        }

        .checklist-progress-container {
            max-width: 600px;
            margin: 0 auto 3rem auto;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .checklist-progress-text {
            font-size: 1.1rem;
            color: var(--snorkel-glow);
            font-weight: 600;
        }

        .checklist-progress-bg {
            background: rgba(255, 255, 255, 0.08);
            height: 8px;
            width: 100%;
            border-radius: 4px;
            overflow: hidden;
            border: 1px solid rgba(0, 212, 255, 0.1);
        }

        .checklist-progress-fill {
            height: 100%;
            width: 0%;
            background: linear-gradient(to right, var(--snorkel-teal), var(--snorkel-glow));
            box-shadow: 0 0 10px rgba(0, 212, 255, 0.4);
            border-radius: 4px;
            transition: width 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
        }

        .checklist-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .checklist-card {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 2rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            display: flex;
            flex-direction: column;
            align-items: center;
            position: relative;
        }

        .checklist-card:hover {
            border-color: rgba(0, 212, 255, 0.3);
            transform: translateY(-5px);
            background: rgba(255, 255, 255, 0.04);
        }

        .checklist-card.checked {
            border-color: var(--snorkel-glow);
            background: rgba(0, 212, 255, 0.05);
            box-shadow: 0 15px 30px rgba(0, 212, 255, 0.1);
        }

        .checklist-icon {
            color: var(--text-light);
            margin-bottom: 1.5rem;
            transition: color 0.3s ease;
        }

        .checklist-card.checked .checklist-icon {
            color: var(--snorkel-glow);
        }

        .checklist-card h4 {
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: 0.5rem;
        }

        .checklist-card p {
            font-size: 0.95rem;
            color: #8c9fa8;
            line-height: 1.5;
        }

        .check-indicator {
            position: absolute;
            top: 15px;
            right: 15px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 2px solid rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .checklist-card.checked .check-indicator {
            background: var(--snorkel-glow);
            border-color: var(--snorkel-glow);
        }

        .check-svg {
            width: 14px;
            height: 14px;
            stroke: #01080b;
            stroke-width: 3;
            fill: none;
            stroke-dasharray: 20;
            stroke-dashoffset: 20;
            transition: stroke-dashoffset 0.3s ease;
        }

        .checklist-card.checked .check-svg {
            stroke-dashoffset: 0;
        }

        /* Footer CTA */
        .snorkel-cta {
            position: relative;
            padding: 10rem 2rem;
            text-align: center;
            background: linear-gradient(rgba(1, 12, 17, 0.6), var(--snorkel-bg)), 
                        url('../assets/mangrove_roots_bottom_visible_1780269955479.png');
            background-size: cover;
            background-position: center;
            z-index: 1;
        }

        .snorkel-cta h2 {
            font-family: 'Abril Fatface', cursive;
            font-size: clamp(2.5rem, 8vw, 4rem);
            color: #fff;
            margin-bottom: 1.5rem;
            line-height: 1.1;
        }

        .snorkel-cta p {
            font-size: 1.25rem;
            color: #b0c4cf;
            max-width: 600px;
            margin: 0 auto 3rem auto;
            line-height: 1.8;
        }

        .cta-btn {
            display: inline-block;
            background: transparent;
            border: 2px solid var(--snorkel-glow);
            color: #fff;
            padding: 1.2rem 3.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            border-radius: 12px;
            text-decoration: none;
            transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
        }

        .cta-btn:hover {
            background: var(--snorkel-glow);
            color: #01080b;
            box-shadow: 0 0 45px var(--snorkel-glow);
            transform: translateY(-5px);
        }