:root {
    --primary: #111827;
    --accent: #007aff;
    --cta: #007aff;
    --cta-hover: #0051a8;
    --card-bg: rgba(255,255,255,0.85);
    --shadow: 0 8px 32px rgba(10,37,64,0.10);
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    margin: 0;
    font-family: 'Montserrat', 'Roboto', Arial, sans-serif;
    color: var(--primary);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
    background: linear-gradient(180deg, #eaf6ff 0%, #b3e0ff 100%);
}

.sea-bg {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    z-index: 0;
    background: linear-gradient(180deg, #b3e0ff 0%, #007aff 100%);
    transition: background 0.5s;
}

.sea-waves {
    position: absolute;
    bottom: 0; left: 0; width: 100vw; height: 40vh;
    z-index: 1;
    pointer-events: none;
}

.ship-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    opacity: 0.2;
    pointer-events: none;
    background-image: url('ship-5242427_1920.jpg?v=415f9152');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: sepia(20%) hue-rotate(180deg) brightness(1.1) contrast(0.9);
    transition: opacity 0.5s ease;
}

header, main, footer {
    position: relative;
    z-index: 2;
}

header {
    background: transparent;
    text-align: center;
    padding: 3rem 0 1rem 0;
}

.logo {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 0.5rem;
}

.logo img {
    height: 120px;
    width: auto;
    max-width: 100%;
    filter: drop-shadow(0 2px 16px rgba(0,37,64,0.08));
}

.subtitle {
    font-size: 1.15rem;
    color: #007aff;
    font-weight: 400;
    margin-bottom: 0.5rem;
    letter-spacing: 0.5px;
}

main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 0;
    min-height: 0;
}

.card {
    background: var(--card-bg);
    border-radius: 22px;
    box-shadow: 0 8px 32px rgba(10,37,64,0.10), 0 1.5px 8px rgba(0,122,255,0.08);
    padding: 3.2rem 2.8rem 2.5rem 2.8rem;
    max-width: 420px;
    width: 100%;
    text-align: center;
    animation: fadeIn 1.2s cubic-bezier(.4,0,.2,1);
    backdrop-filter: blur(4px);
    border: 1px solid #eaf6ff;
}

.card h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.1rem;
    font-weight: 700;
    margin: 0 0 1.1rem 0;
    color: var(--primary);
    letter-spacing: 0.5px;
}

.card p {
    font-size: 1.13rem;
    color: #2a3a4d;
    margin-bottom: 2.2rem;
    font-weight: 400;
    line-height: 1.6;
}

.cta-btn {
    display: inline-block;
    background: var(--cta);
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.18rem;
    font-weight: 600;
    padding: 1.1rem 2.8rem;
    border: none;
    border-radius: 32px;
    box-shadow: 0 2px 12px rgba(0,122,255,0.10);
    text-decoration: none;
    letter-spacing: 1px;
    transition: background 0.18s, transform 0.18s, box-shadow 0.18s;
    cursor: pointer;
}

.cta-btn:hover, .cta-btn:focus {
    background: var(--cta-hover);
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 4px 24px rgba(0,122,255,0.18);
}

@media (hover: none) and (pointer: coarse) {
    .cta-btn:hover {
        transform: none;
        background: var(--cta);
    }
    .cta-btn:active {
        background: var(--cta-hover);
        transform: scale(0.98);
    }
}

footer {
    text-align: center;
    color: #7fa7c7;
    font-size: 1rem;
    margin: 2rem 0 1rem 0;
    letter-spacing: 1px;
    text-shadow: 0 2px 8px rgba(0,37,64,0.08);
}

@media (max-width: 768px) {
    body {
        padding: 0 1rem;
    }
    header {
        padding: 1.5rem 0 0.5rem 0;
    }
    .logo img {
        height: 80px;
    }
    .subtitle {
        font-size: 1rem;
        padding: 0 0.5rem;
    }
    .card {
        padding: 2rem 1.5rem 1.8rem 1.5rem;
        margin: 1rem 0;
        max-width: 100%;
        border-radius: 18px;
    }
    .card h2 {
        font-size: 1.6rem;
        margin-bottom: 1rem;
        line-height: 1.3;
    }
    .card p {
        font-size: 1rem;
        line-height: 1.5;
        margin-bottom: 1.8rem;
    }
    .cta-btn {
        font-size: 1.1rem;
        padding: 1rem 2.2rem;
        border-radius: 28px;
        width: 100%;
        max-width: 280px;
    }
    .ship-bg {
        opacity: 0.12;
    }
    footer {
        font-size: 0.9rem;
        margin: 1.5rem 0 1rem 0;
        padding: 0 0.5rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 0 0.75rem;
    }
    header {
        padding: 1rem 0 0.5rem 0;
    }
    .logo img {
        height: 65px;
    }
    .subtitle {
        font-size: 0.95rem;
    }
    .card {
        padding: 1.5rem 1.2rem;
        border-radius: 16px;
    }
    .card h2 {
        font-size: 1.4rem;
    }
    .card p {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }
    .cta-btn {
        font-size: 1rem;
        padding: 0.9rem 1.8rem;
        letter-spacing: 0.5px;
    }
    .ship-bg {
        opacity: 0.08;
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: none; }
}