:root {
    --pacific-blue: #004b7a;
    --turquoise: #40e0d0;
    --volcanic: #0a0a0a;
    --foam: #f0faff;
}

* { box-sizing: border-box; }

body, html {
    margin: 0; padding: 0;
    font-family: 'Inter', sans-serif;
    color: var(--foam);
    background: linear-gradient(180deg, var(--pacific-blue) 0%, var(--volcanic) 60%);
    background-attachment: fixed;
    min-height: 100vh;
    overflow-x: hidden;
}

/* WATER TEXTURE OVERLAY */
.water-texture {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-image: url('https://www.transparenttextures.com/patterns/water.png');
    opacity: 0.2;
    pointer-events: none;
    z-index: 1;
    animation: flow 20s linear infinite;
}

@keyframes flow {
    from { background-position: 0 0; }
    to { background-position: 500px 500px; }
}

/* NAVIGATION */
nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 25px 50px;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(15px);
    position: sticky; top: 0; z-index: 100;
    border-bottom: 1px solid rgba(64, 224, 208, 0.2);
}

.logo {
    font-weight: 900; letter-spacing: 8px; font-size: 1.6rem;
    text-transform: uppercase; color: var(--turquoise);
    font-style: italic;
}

.nav-link {
    color: var(--turquoise); text-decoration: none; font-size: 0.7rem; font-weight: 800;
    text-transform: uppercase; letter-spacing: 2px; border: 2px solid var(--turquoise);
    padding: 10px 20px; transition: 0.3s; border-radius: 50px;
    white-space: nowrap;
}

.nav-link:hover { background: var(--turquoise); color: var(--volcanic); }

@media (max-width: 650px) {
    nav { padding: 18px 20px; }
    .logo { font-size: 1.2rem; letter-spacing: 4px; }
    .nav-link { padding: 7px 12px; font-size: 0.6rem; letter-spacing: 1px; border-width: 1px; }
}

/* HERO */
.content {
    position: relative; z-index: 10;
    max-width: 1100px; margin: 0 auto; padding: 100px 40px;
    text-align: center;
}

.brand-h1 {
    font-size: clamp(2.5rem, 10vw, 8rem);
    font-weight: 900; margin: 0;
    text-transform: uppercase; letter-spacing: -2px;
    color: var(--foam);
    line-height: 0.9;
}

.tagline {
    margin: 40px auto; font-size: 1.1rem; color: var(--turquoise);
    max-width: 600px; line-height: 1.8; letter-spacing: 3px;
    text-transform: uppercase; font-weight: 300;
}

/* SURF CARDS */
.grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 20px; margin-top: 60px;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    padding: 50px 30px; border-radius: 20px;
    border: 1px solid rgba(64, 224, 208, 0.1);
    transition: 0.4s;
    text-align: left;
}

.card:hover {
    background: rgba(64, 224, 208, 0.1);
    transform: translateY(-5px);
    border-color: var(--turquoise);
}

.card h3 {
    color: var(--turquoise); font-size: 0.8rem;
    letter-spacing: 3px; margin-bottom: 15px;
    text-transform: uppercase;
}

.card p { font-size: 0.95rem; color: rgba(240, 250, 255, 0.85); line-height: 1.6; }

@media (max-width: 800px) {
    .grid { grid-template-columns: 1fr; }
}

/* ACQUISITION PAGE */
.acq-page {
    display: flex; justify-content: center; align-items: center;
    min-height: 100vh; padding: 40px 20px;
    position: relative; z-index: 10;
}

.vessel-card {
    width: 480px; padding: 80px 60px;
    background: rgba(255, 255, 255, 0.03);
    border: 1.5px solid rgba(64, 224, 208, 0.3);
    border-radius: 60px;
    text-align: center;
    backdrop-filter: blur(25px);
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.4);
    position: relative;
}

@media (max-width: 550px) {
    .vessel-card { width: 92%; padding: 60px 30px 50px; border-radius: 40px; }
}

.back-link {
    color: var(--turquoise); text-decoration: none;
    font-size: 0.7rem; font-weight: 800; letter-spacing: 3px;
    position: absolute; top: 40px; left: 50%;
    transform: translateX(-50%); text-transform: uppercase;
    opacity: 0.6; transition: 0.3s;
    white-space: nowrap;
}

.back-link:hover { opacity: 1; letter-spacing: 5px; }

.acq-h2 {
    font-size: 2.2rem; font-style: italic; letter-spacing: 4px;
    margin: 30px 0; text-transform: uppercase; color: var(--foam);
    font-weight: 900;
}

.specs { margin: 40px 0; }

.row {
    display: flex; justify-content: space-between;
    padding: 22px 0; border-bottom: 1px solid rgba(64, 224, 208, 0.1);
    font-size: 0.9rem; letter-spacing: 1px;
}

.row span {
    color: var(--turquoise); text-transform: uppercase;
    font-size: 0.65rem; font-weight: 700; opacity: 0.9;
}

.row b { color: var(--foam); font-weight: 500; }

.btn-acq {
    display: block; background: var(--turquoise); color: var(--volcanic);
    padding: 24px; text-align: center; text-decoration: none;
    margin-top: 50px; font-weight: 900; letter-spacing: 4px;
    text-transform: uppercase; border-radius: 100px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-acq:hover {
    background: var(--foam); color: var(--volcanic);
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(64, 224, 208, 0.4);
}

.acq-footer {
    margin-top: 50px; font-size: 0.6rem; color: var(--turquoise);
    opacity: 0.3; letter-spacing: 5px; text-transform: uppercase;
}

@media (max-width: 500px) {
    .acq-h2 { font-size: 1.7rem; letter-spacing: 2px; }
    .btn-acq { letter-spacing: 2px; font-size: 0.85rem; padding: 20px; }
    .row { font-size: 0.8rem; }
}