/* Общие стили */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --ocean-dark: #001224;
    --ocean-deep: #000810;
    --ocean-blue: #003d5c;
    --ocean-cyan: #00d4ff;
    --ocean-light: #4dfcff;
    --shark-silver: #c5d5e0;
    --text-primary: #ffffff;
    --text-secondary: #7ec8e3;
    --accent: #00d4ff;
    --accent-glow: #4dfcff;
    --card-bg: rgba(0, 61, 92, 0.2);
    --card-border: rgba(77, 252, 255, 0.25);
}

html, body {
    height: 100%;
    overflow-x: hidden;
}

body {
    font-family: 'Rajdhani', 'Exo 2', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--ocean-deep) 0%, var(--ocean-dark) 40%, var(--ocean-blue) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    position: relative;
}

.container-fluid {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 50px;
}

/* Упрощенные волны */
.ocean-waves {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 20%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.15;
}

.wave {
    position: absolute;
    bottom: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    background: linear-gradient(180deg, transparent 0%, var(--ocean-cyan) 100%);
    border-radius: 50% 50% 0 0;
    animation: wave 20s ease-in-out infinite;
}

.wave-2 {
    animation-duration: 30s;
    animation-direction: reverse;
    opacity: 0.5;
}

.wave-3 {
    animation-duration: 40s;
    opacity: 0.3;
}

@keyframes wave {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(10%);
    }
}

/* Упрощенные пузырьки - только 5 штук */
.bubbles {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.bubble {
    position: absolute;
    bottom: -100px;
    width: 30px;
    height: 30px;
    background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.6), rgba(77, 252, 255, 0.2));
    border-radius: 50%;
    opacity: 0.4;
    animation: bubble 25s linear infinite;
}

.bubble:nth-child(1) { left: 20%; animation-duration: 22s; animation-delay: 0s; }
.bubble:nth-child(2) { left: 40%; animation-duration: 28s; animation-delay: 5s; width: 40px; height: 40px; }
.bubble:nth-child(3) { left: 60%; animation-duration: 25s; animation-delay: 10s; width: 25px; height: 25px; }
.bubble:nth-child(4) { left: 80%; animation-duration: 30s; animation-delay: 15s; width: 35px; height: 35px; }
.bubble:nth-child(5) { left: 10%; animation-duration: 20s; animation-delay: 8s; width: 28px; height: 28px; }

@keyframes bubble {
    0% {
        bottom: -100px;
        opacity: 0;
    }
    10% {
        opacity: 0.4;
    }
    90% {
        opacity: 0.4;
    }
    100% {
        bottom: 100vh;
        opacity: 0;
        transform: translateX(50px);
    }
}

/* Шапка */
.header {
    padding: 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header .container-fluid {
    margin: 20px auto;
    max-width: 1600px;
    padding: 0 50px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding: 14px 26px;
    background: linear-gradient(135deg, rgba(0, 18, 36, 0.95) 0%, rgba(0, 61, 92, 0.92) 100%);
    backdrop-filter: blur(30px);
    border: 2px solid var(--card-border);
    border-radius: 24px;
    box-shadow: 
        0 10px 40px rgba(0, 212, 255, 0.2),
        inset 0 1px 0 rgba(77, 252, 255, 0.15);
    position: relative;
}

.header-content::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 20%;
    right: 20%;
    height: 4px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--accent-glow) 50%, 
        transparent 100%);
    filter: blur(4px);
}

.logo {
    display: flex;
    align-items: center;
    gap: 18px;
    position: relative;
    z-index: 2;
}

.logo-icon {
    width: 48px;
    height: 48px;
    color: var(--accent-glow);
    filter: drop-shadow(0 0 15px var(--accent-glow));
    animation: logo-pulse 3s ease-in-out infinite;
}

@keyframes logo-pulse {
    0%, 100% {
        filter: drop-shadow(0 0 15px var(--accent-glow));
    }
    50% {
        filter: drop-shadow(0 0 25px var(--accent-glow));
    }
}

.logo-text {
    font-size: 32px;
    font-weight: 900;
    letter-spacing: 6px;
    color: var(--accent-glow);
    text-transform: uppercase;
    font-family: 'Exo 2', sans-serif;
    text-shadow: 
        0 0 20px rgba(77, 252, 255, 0.8),
        0 0 40px rgba(0, 212, 255, 0.5);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
    flex: 1;
    justify-content: flex-end;
    position: relative;
    z-index: 2;
}

.header-contacts {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: nowrap;
}

.header-contact-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: rgba(0, 212, 255, 0.08);
    border: 2px solid rgba(77, 252, 255, 0.3);
    border-radius: 18px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 800;
    transition: all 0.3s ease;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.header-contact-link:hover {
    background: rgba(0, 212, 255, 0.25);
    border-color: var(--accent-glow);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 10px 30px rgba(77, 252, 255, 0.5);
}

.header-contact-link svg {
    width: 22px;
    height: 22px;
    fill: var(--accent-glow);
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

/* Hero секция */
.hero {
    min-height: 100vh;
    height: 100vh;
    display: flex;
    align-items: flex-start;
    padding: 170px 0 60px;
    background-image: url('shark-bg.png');
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 50%, 
        rgba(0, 8, 16, 0.65) 0%, 
        rgba(0, 18, 36, 0.82) 50%, 
        rgba(0, 61, 92, 0.90) 100%);
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.12) 0%, transparent 60%);
    z-index: 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 60px;
    row-gap: 36px;
    align-items: start;
    position: relative;
    z-index: 2;
}

.hero-block {
    position: relative;
    z-index: 2;
}

.hero-title-block,
.hero-subtitle-block,
.hero-buttons-block {
    grid-column: 1;
}

.hero-title-block { grid-row: 1; }
.hero-subtitle-block { grid-row: 2; }
.hero-buttons-block { grid-row: 3; }

.hero-image-block {
    grid-column: 2;
    grid-row: 1 / 4;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-title {
    font-size: 68px;
    font-weight: 900;
    line-height: 1.05;
    margin-bottom: 0;
    color: var(--text-primary);
    letter-spacing: -3px;
    font-family: 'Exo 2', sans-serif;
    text-shadow: 
        0 0 40px rgba(77, 252, 255, 0.7),
        0 0 80px rgba(0, 212, 255, 0.4),
        2px 2px 0px rgba(0, 61, 92, 0.5);
    text-transform: uppercase;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: 0;
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: 2px;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.hero-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.hero-button {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 16px;
    padding: 24px 32px;
    background: linear-gradient(135deg, rgba(0, 61, 92, 0.4) 0%, rgba(0, 212, 255, 0.15) 100%);
    border: 2px solid rgba(77, 252, 255, 0.3);
    border-radius: 18px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 17px;
    font-weight: 800;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(77, 252, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.hero-button:hover::after {
    width: 300px;
    height: 300px;
}

.hero-button:hover {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.3) 0%, rgba(77, 252, 255, 0.2) 100%);
    border-color: var(--accent-glow);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 
        0 15px 40px rgba(77, 252, 255, 0.4),
        inset 0 0 20px rgba(0, 212, 255, 0.2);
}

.hero-button svg {
    width: 24px;
    height: 24px;
    fill: var(--accent-glow);
    flex-shrink: 0;
    filter: drop-shadow(0 0 10px var(--accent-glow));
    z-index: 1;
    position: relative;
}

.hero-button span {
    position: relative;
    z-index: 1;
}

/* Hero изображение */
.shark-container {
    width: 100%;
    max-width: 550px;
    aspect-ratio: 1;
    position: relative;
}

.shark-glow {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle at 45% 45%, rgba(0, 212, 255, 0.35) 0%, rgba(77, 252, 255, 0.15) 50%, transparent 75%);
    filter: blur(80px);
    animation: shark-glow 7s ease-in-out infinite;
}

@keyframes shark-glow {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
    }
    50% {
        opacity: 0.9;
        transform: scale(1.2);
    }
}

/* Адаптивность */
@media (max-width: 1400px) {
    .container-fluid {
        padding: 0 40px;
    }
}

@media (max-width: 968px) {
    .header .container-fluid {
        margin: 18px auto;
        padding: 0 25px;
    }
    
    .header-content {
        padding: 20px 28px;
        justify-content: center;
        border-radius: 22px;
    }
    
    .logo {
        width: 100%;
        justify-content: center;
    }
    
    .logo-icon {
        width: 42px;
        height: 42px;
    }
    
    .logo-text {
        font-size: 26px;
        letter-spacing: 5px;
    }
    
    .header-right {
        display: none;
    }
    
    .hero {
        padding: 200px 0 60px;
        align-items: flex-start;
    }
    
    .hero-content {
        display: flex;
        flex-direction: column;
        gap: 0;
        text-align: center;
    }
    
    .hero-block {
        width: 100%;
        margin-bottom: 40px;
    }
    
    .hero-title-block {
        order: 1;
        margin-bottom: 28px;
    }
    
    .hero-subtitle-block {
        order: 2;
        margin-bottom: 40px;
    }
    
    .hero-buttons-block {
        order: 3;
        margin-bottom: 0;
    }
    
    .hero-image-block {
        order: 4;
        display: none;
    }
    
    .hero-title {
        font-size: 48px;
        text-align: center;
        letter-spacing: -2px;
    }
    
    .hero-subtitle {
        font-size: 20px;
        text-align: center;
    }
    
    .hero-buttons {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .hero-button {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .container-fluid {
        padding: 0 20px;
    }
    
    .header .container-fluid {
        margin: 14px auto;
        padding: 0 18px;
    }
    
    .header-content {
        padding: 18px 24px;
        border-radius: 18px;
    }
    
    .logo-icon {
        width: 36px;
        height: 36px;
    }
    
    .logo-text {
        font-size: 22px;
        letter-spacing: 4px;
    }
    
    .hero {
        padding: 170px 0 50px;
        align-items: flex-start;
    }
    
    .hero-title {
        font-size: 38px;
        letter-spacing: -1px;
    }
    
    .hero-subtitle {
        font-size: 17px;
    }
    
    .hero-button {
        padding: 20px 26px;
        font-size: 15px;
        letter-spacing: 1.5px;
    }
}

@media (max-width: 480px) {
    .header .container-fluid {
        margin: 12px auto;
        padding: 0 14px;
    }
    
    .header-content {
        padding: 16px 20px;
        border-radius: 16px;
    }
    
    .logo-icon {
        width: 32px;
        height: 32px;
    }
    
    .logo-text {
        font-size: 19px;
        letter-spacing: 3px;
    }
    
    .hero {
        padding: 155px 0 45px;
        align-items: flex-start;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 15px;
        letter-spacing: 1.5px;
    }
    
    .hero-button {
        padding: 18px 22px;
        font-size: 14px;
    }
    
    .hero-button svg {
        width: 20px;
        height: 20px;
    }
}

html {
    scroll-behavior: smooth;
}