.watermark-hero {
    background: 
        linear-gradient(135deg, 
            rgba(8, 51, 68, 0.95) 0%, 
            rgba(14, 116, 144, 0.9) 20%, 
            rgba(6, 182, 212, 0.8) 40%, 
            rgba(34, 211, 238, 0.75) 60%, 
            rgba(14, 116, 144, 0.9) 80%, 
            rgba(8, 51, 68, 0.95) 100%),
        url('/static/images/watermark/kv_bg.png') center/cover no-repeat;
    position: relative;
    overflow: hidden;
}

.watermark-hero::before {
    background: 
        radial-gradient(ellipse at 10% 20%, rgba(34, 211, 238, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 80%, rgba(59, 130, 246, 0.25) 0%, transparent 45%),
        radial-gradient(ellipse at 50% 50%, rgba(103, 232, 249, 0.2) 0%, transparent 55%),
        radial-gradient(ellipse at 30% 70%, rgba(6, 182, 212, 0.15) 0%, transparent 40%);
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    animation: heroGradientShift 15s ease-in-out infinite;
}

@keyframes heroGradientShift {
    0%, 100% {
        background: 
            radial-gradient(ellipse at 10% 20%, rgba(34, 211, 238, 0.3) 0%, transparent 50%),
            radial-gradient(ellipse at 90% 80%, rgba(59, 130, 246, 0.25) 0%, transparent 45%),
            radial-gradient(ellipse at 50% 50%, rgba(103, 232, 249, 0.2) 0%, transparent 55%),
            radial-gradient(ellipse at 30% 70%, rgba(6, 182, 212, 0.15) 0%, transparent 40%);
    }
    50% {
        background: 
            radial-gradient(ellipse at 90% 20%, rgba(34, 211, 238, 0.3) 0%, transparent 50%),
            radial-gradient(ellipse at 10% 80%, rgba(59, 130, 246, 0.25) 0%, transparent 45%),
            radial-gradient(ellipse at 50% 50%, rgba(103, 232, 249, 0.2) 0%, transparent 55%),
            radial-gradient(ellipse at 70% 30%, rgba(6, 182, 212, 0.15) 0%, transparent 40%);
    }
}

.watermark-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(34, 211, 238, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 35%);
    pointer-events: none;
    animation: watermark-hero-pulse 6s ease-in-out infinite alternate;
}

@keyframes watermark-hero-pulse {
    0% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
    100% { opacity: 1; transform: scale(1); }
}

.watermark-hero .hero-title {
    background: linear-gradient(135deg, 
        #ffffff 0%, 
        #f0fdfa 15%, 
        #99f6e4 35%, 
        #5eead4 55%, 
        #14b8a6 75%, 
        #0d9488 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    font-size: clamp(2.25rem, 5.5vw, 3.75rem);
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.5));
    letter-spacing: -0.02em;
    line-height: 1.1;
    font-weight: 800;
}

.watermark-hero .hero-desc {
    color: #e0f7fa;
    font-size: clamp(1rem, 2vw, 1.25rem);
    line-height: 1.8;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
    opacity: 1;
}

.watermark-hero .hero-badge {
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.25), rgba(59, 130, 246, 0.2));
    border: 1px solid rgba(34, 211, 238, 0.35);
    color: #b2ebf2;
    padding: 0.625rem 1.25rem;
    border-radius: 2rem;
    font-size: 0.9375rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 24px rgba(34, 211, 238, 0.2);
    animation: badgeFloat 4s ease-in-out infinite;
}

@keyframes badgeFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.watermark-hero .hero-badge i {
    font-size: 1.125rem;
    animation: iconRotate 3s linear infinite;
}

@keyframes iconRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

[data-theme="watermark"] .hero-particle {
    background: radial-gradient(circle, rgba(34, 211, 238, 0.7) 0%, transparent 70%);
    animation: particleEnhancedFloat 12s ease-in-out infinite;
}

@keyframes particleEnhancedFloat {
    0%, 100% { 
        transform: translateY(0) translateX(0) scale(1); 
        opacity: 0.4; 
    }
    25% { 
        transform: translateY(-50px) translateX(30px) scale(1.5); 
        opacity: 0.8; 
    }
    50% { 
        transform: translateY(-25px) translateX(-20px) scale(1.2); 
        opacity: 0.6; 
    }
    75% { 
        transform: translateY(-60px) translateX(40px) scale(1.8); 
        opacity: 0.9; 
    }
}

[data-theme="watermark"] .hero-grid-bg {
    background-image: 
        linear-gradient(rgba(34, 211, 238, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(34, 211, 238, 0.04) 1px, transparent 1px);
    animation: gridMoveEnhanced 25s linear infinite;
}

@keyframes gridMoveEnhanced {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.hero-image-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: imageWrapperFloat 6s ease-in-out infinite;
}

@keyframes imageWrapperFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.hero-product-image {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(34, 211, 238, 0.2),
        0 0 80px rgba(34, 211, 238, 0.15);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 2;
}

.hero-product-image:hover {
    transform: scale(1.05) rotate(1deg);
    box-shadow: 
        0 30px 80px rgba(0, 0, 0, 0.5),
        0 0 0 2px rgba(34, 211, 238, 0.4),
        0 0 120px rgba(34, 211, 238, 0.25);
}

.hero-image-wrapper::before {
    content: '';
    position: absolute;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: imageGlow 5s ease-in-out infinite;
    z-index: 1;
}

@keyframes imageGlow {
    0%, 100% { 
        transform: scale(1); 
        opacity: 0.6; 
    }
    50% { 
        transform: scale(1.3); 
        opacity: 0.9; 
    }
}

.hero-image-wrapper::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(34, 211, 238, 0.08) 50%,
        transparent 70%
    );
    animation: imageShine 4s linear infinite;
    z-index: 3;
    pointer-events: none;
}

@keyframes imageShine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    animation: contentSlideIn 1s ease-out;
}

@keyframes contentSlideIn {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: actionsSlideUp 1s ease-out 0.3s both;
}

@keyframes actionsSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

[data-theme="watermark"] .btn-hero-primary {
    background: linear-gradient(135deg, #22d3ee, #06b6d4, #0891b2);
    box-shadow: 
        0 8px 32px rgba(34, 211, 238, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    color: #ffffff;
    font-weight: 700;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

[data-theme="watermark"] .btn-hero-primary::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 0.5s;
}

[data-theme="watermark"] .btn-hero-primary:hover::before {
    left: 100%;
}

[data-theme="watermark"] .btn-hero-primary:hover {
    background: linear-gradient(135deg, #67e8f9, #22d3ee, #06b6d4);
    box-shadow: 
        0 12px 48px rgba(34, 211, 238, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset;
    transform: translateY(-3px) scale(1.02);
}

[data-theme="watermark"] .btn-hero-secondary {
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(59, 130, 246, 0.1));
    border: 1px solid rgba(34, 211, 238, 0.4);
    color: #a5f3fc;
    backdrop-filter: blur(12px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

[data-theme="watermark"] .btn-hero-secondary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.3), transparent);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

[data-theme="watermark"] .btn-hero-secondary:hover::before {
    width: 300px;
    height: 300px;
}

[data-theme="watermark"] .btn-hero-secondary:hover {
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.25), rgba(59, 130, 246, 0.2));
    border-color: rgba(34, 211, 238, 0.6);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(34, 211, 238, 0.3);
}

@media (max-width: 991.98px) {
    .hero-image-wrapper {
        padding: 16px;
    }

    .hero-image-wrapper::before {
        width: 350px;
        height: 350px;
    }
}

@media (max-width: 768px) {
    .watermark-hero .hero-title {
        font-size: clamp(1.75rem, 6vw, 2.5rem);
    }

    .watermark-hero .hero-desc {
        font-size: clamp(0.9375rem, 2.5vw, 1.125rem);
    }

    .hero-image-wrapper {
        padding: 12px;
    }

    .hero-image-wrapper::before {
        width: 280px;
        height: 280px;
    }

    .hero-product-image {
        border-radius: 16px;
    }
}