* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: #f6f9fc;
    color: #1a2639;
    line-height: 1.6;
}
a {
    text-decoration: none;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.btn {
    display: inline-block;
    background: #2d7aff;
    color: #fff;
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
    box-shadow: 0 8px 20px rgba(45, 122, 255, 0.3);
    letter-spacing: 0.3px;
}
.btn:hover {
    background: #1a5fd9;
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(45, 122, 255, 0.4);
}
.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
    box-shadow: none;
    margin-left: 12px;
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

.hero {
    background: linear-gradient(145deg, #0b1a30 0%, #1a2f4e 100%);
    color: #fff;
    padding: 80px 0 90px;
    position: relative;
    overflow: hidden;
}
.hero::after {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(45, 122, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
    position: relative;
    z-index: 2;
}
.hero-text h1 {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}
.hero-text h1 span {
    color: #7bb3ff;
    font-weight: 300;
}
.hero-text p {
    font-size: 1.2rem;
    opacity: 0.85;
    max-width: 550px;
    margin-bottom: 32px;
    line-height: 1.7;
}
.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 32px;
}
.stat-item {
    display: flex;
    flex-direction: column;
}
.stat-num {
    font-size: 2.2rem;
    font-weight: 700;
    color: #7bb3ff;
    letter-spacing: -0.5px;
}
.stat-desc {
    font-size: 0.95rem;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 260px;
    height: 260px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(4px);
    transition: transform 0.6s ease;
}
.hero-image i {
    font-size: 10rem;
    color: rgba(255, 255, 255, 0.08);
    transition: color 0.6s;
}
.hero-image:hover i {
    color: rgba(123, 179, 255, 0.2);
}
.hero-image:hover {
    transform: scale(1.02);
}

/* ----- sections common ----- */
.section {
    padding: 70px 0 60px;
}
.section-title {
    font-size: 2.4rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
    color: #0b1a30;
    letter-spacing: -0.3px;
}
.section-sub {
    text-align: center;
    font-size: 1.1rem;
    color: #4a5a72;
    max-width: 640px;
    margin: 0 auto 48px;
    line-height: 1.7;
}

/* ----- features grid ----- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}
.feature-card {
    background: #fff;
    padding: 36px 28px 32px;
    border-radius: 24px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid rgba(0, 0, 0, 0.02);
    text-align: center;
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 56px rgba(11, 26, 48, 0.08);
}
.feature-icon {
    font-size: 2.6rem;
    color: #2d7aff;
    background: rgba(45, 122, 255, 0.08);
    width: 72px;
    height: 72px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    transition: background 0.3s, transform 0.3s;
}
.feature-card:hover .feature-icon {
    background: rgba(45, 122, 255, 0.15);
    transform: scale(1.05);
}
.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: #0b1a30;
}
.feature-card p {
    color: #4a5a72;
    font-size: 0.98rem;
    line-height: 1.6;
}

/* ----- equipment grid ----- */
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}
.equip-item {
    background: #fff;
    border-radius: 20px;
    padding: 28px 24px;
    display: flex;
    align-items: center;
    gap: 18px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.02);
    transition: transform 0.25s, box-shadow 0.25s;
}
.equip-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
}
.equip-img {
    font-size: 2rem;
    color: #2d7aff;
    background: rgba(45, 122, 255, 0.06);
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.equip-body h4 {
    font-size: 1.05rem;
    margin-bottom: 2px;
    color: #0b1a30;
}
.equip-body p {
    font-size: 0.9rem;
    color: #5a6f88;
}

/* ----- benefits ----- */
.benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px 32px;
    max-width: 780px;
    margin: 0 auto;
    background: #fff;
    padding: 36px 44px;
    border-radius: 28px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.02);
}
.benefit {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    font-weight: 500;
    color: #1a2f4e;
}
.benefit i {
    color: #2d7aff;
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

/* ----- contact section ----- */
.contact-section {
    background: linear-gradient(145deg, #0b1a30 0%, #1a2f4e 100%);
    padding: 70px 0 60px;
    color: #fff;
}
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}
.contact-info h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}
.contact-info p {
    opacity: 0.75;
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 28px;
    max-width: 420px;
}
.contact-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.contact-details li {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1rem;
    opacity: 0.9;
}
.contact-details li i {
    width: 28px;
    color: #7bb3ff;
    font-size: 1.2rem;
    text-align: center;
}

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(6px);
    padding: 36px 32px;
    border-radius: 28px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}
.contact-form .form-group {
    margin-bottom: 18px;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
    font-size: 1rem;
    font-family: inherit;
    transition: border 0.3s, background 0.3s;
    outline: none;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}
.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #2d7aff;
    background: rgba(255, 255, 255, 0.08);
}
.contact-form textarea {
    min-height: 100px;
    resize: vertical;
}
.contact-form .btn {
    width: 100%;
    justify-content: center;
    background: #2d7aff;
    margin-top: 6px;
}
.contact-form .btn:hover {
    background: #1a5fd9;
}

/* ----- footer ----- */
footer {
    background: #07101f;
    color: rgba(255, 255, 255, 0.6);
    padding: 32px 0;
    text-align: center;
    font-size: 0.95rem;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}
footer .container p:last-child {
    font-size: 0.85rem;
    opacity: 0.5;
    margin-top: 4px;
}

/* ----- responsive ----- */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    .hero-text h1 {
        font-size: 2.6rem;
    }
    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }
    .hero-stats {
        justify-content: center;
    }
    .hero-image {
        width: 200px;
        height: 200px;
    }
    .hero-image i {
        font-size: 7rem;
    }
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .contact-info p {
        max-width: 100%;
    }
    .benefits-list {
        padding: 28px 24px;
    }
}
@media (max-width: 600px) {
    .hero {
        padding: 56px 0 60px;
    }
    .hero-text h1 {
        font-size: 2rem;
    }
    .hero-text p {
        font-size: 1rem;
    }
    .hero-stats {
        gap: 24px;
        flex-wrap: wrap;
        justify-content: center;
    }
    .stat-num {
        font-size: 1.8rem;
    }
    .hero-image {
        width: 140px;
        height: 140px;
    }
    .hero-image i {
        font-size: 5rem;
    }
    .btn {
        padding: 12px 28px;
        font-size: 0.9rem;
    }
    .btn-outline {
        margin-left: 8px;
    }
    .section-title {
        font-size: 1.8rem;
    }
    .section-sub {
        font-size: 0.98rem;
    }
    .features-grid {
        gap: 18px;
    }
    .feature-card {
        padding: 28px 18px;
    }
    .equipment-grid {
        gap: 16px;
    }
    .equip-item {
        padding: 18px 16px;
    }
    .contact-form {
        padding: 28px 18px;
    }
    .benefits-list {
        grid-template-columns: 1fr 1fr;
        padding: 24px 18px;
        gap: 10px 20px;
    }
    .benefit {
        font-size: 0.9rem;
    }
}
@media (max-width: 420px) {
    .benefits-list {
        grid-template-columns: 1fr;
    }
}
html {
    scroll-behavior: smooth;
}