/* --- Hero Section --- */

.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    background: url('/images/ocean-tech-bg.jpg') no-repeat center center/cover;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(5, 11, 19, 0.9) 20%, rgba(5, 11, 19, 0.4) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: 0 8%;
    text-align: left;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.highlight {
    color: #4eb5c2;
}

.hero-content p {
    font-size: 1.2rem;
    color: #ccd6f6;
    max-width: 600px;
    line-height: 1.6;
    margin-bottom: 40px;
}

/* --- Buttons --- */

.hero-btns {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-btns a {
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    padding: 16px 35px;
    border-radius: 6px;
    transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: #4eb5c2;
    color: #050b13;
    border: 2px solid #4eb5c2;
}

.btn-primary:hover {
    background: transparent;
    color: #4eb5c2;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(78, 181, 194, 0.2);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    border-color: #4eb5c2;
    color: #4eb5c2;
    background: rgba(78, 181, 194, 0.05);
    transform: translateY(-3px);
}

/* --- Animations --- */

.fade-in {
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in-delay {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.3s;
}

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

/* --- Responsive Layouts --- */

/* Big Tablets (Landscape) */
@media (max-width: 1024px) {
    .hero-content { padding: 0 5%; }
}

/* Standard Tablets & iPads (Portrait) */
@media (max-width: 992px) {
    .hero { justify-content: center; text-align: center; }
    .hero-overlay { background: rgba(5, 11, 19, 0.8); }
    .hero-content { text-align: center; }
    .hero-btns { justify-content: center; }
}

/* Large Phones & Small Tablets */
@media (max-width: 600px) {
    .hero-btns { flex-direction: column; width: 100%; }
    .hero-btns a { width: 100%; }
}

/* Foldables & Ultra-Small Screens */
@media (max-width: 320px) {
    .hero-content h1 { font-size: 2rem; }
    .hero-content p { font-size: 1rem; margin-bottom: 30px; }
    .hero-btns a { padding: 14px 20px; font-size: 0.9rem; }
}