:root {
    --deep-ocean-top: #010c1f;
    --deep-ocean-bottom: #083764;
    --midnight-horizon: #0b5c81;
    --orbital-white: #f5fbff;
    --accent-mint: #68f8ff;
    --accent-lagoon: #57c4ff;
    --accent-silver: rgba(189, 226, 255, 0.5);
    --text-muted: rgba(245, 251, 255, 0.78);
    --surface: rgba(4, 23, 48, 0.78);
    --border: rgba(255, 255, 255, 0.12);
    --shadow: 0 32px 60px rgba(0, 8, 20, 0.55);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Space Grotesk", "Montserrat", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--orbital-white);
    background-color: var(--deep-ocean-top);
    line-height: 1.6;
}

img,
svg {
    display: block;
    max-width: 100%;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.site-hero {
    padding: 0 clamp(1.5rem, 5vw, 4rem) 4rem;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 3rem;
    align-items: center;
    background-image: linear-gradient(180deg, rgba(1, 12, 31, 0.8), rgba(8, 55, 100, 0.85)), url("../images/index.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.site-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 0%, rgba(88, 244, 255, 0.15), transparent 45%);
    pointer-events: none;
}

.primary-nav {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0.95rem clamp(1.5rem, 5vw, 4rem);
    width: calc(100% + (2 * clamp(1.5rem, 5vw, 4rem)));
    margin-left: calc(-1 * clamp(1.5rem, 5vw, 4rem));
    margin-right: calc(-1 * clamp(1.5rem, 5vw, 4rem));
    border-radius: 0;
    background: rgba(4, 33, 60, 0.85);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    position: relative;
    z-index: 2;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--orbital-white);
    text-decoration: none;
    margin-right: auto;
}

.brand-mark {
    width: 28px;
    height: 28px;
    object-fit: contain;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.35));
    opacity: 0.95;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    margin-left: auto;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--accent-mint);
}

.nav-toggle {
    background: transparent;
    border: 1px solid transparent;
    color: var(--orbital-white);
    display: none;
    padding: 0.35rem 0.65rem;
    border-radius: 8px;
    margin-left: 1rem;
}

.nav-toggle-bar {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--orbital-white);
    margin: 5px 0;
    transition: transform 0.3s ease;
}

.hero-stack {
    text-align: center;
    max-width: 620px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    position: relative;
    z-index: 1;
}

.hero-stack h1 {
    font-size: clamp(2.4rem, 6vw, 4.2rem);
    margin: 0;
    line-height: 1.1;
}

.subheadline {
    color: var(--text-muted);
    font-size: 1.15rem;
    margin: 0;
    max-width: 36ch;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.24em;
    font-size: 0.8rem;
    color: var(--accent-mint);
    margin: 0;
}

.btn {
    padding: 0.95rem 1.85rem;
    border-radius: 999px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    border: 1px solid transparent;
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn.primary {
    background: linear-gradient(120deg, #00a4ff, #00ffd9);
    color: #021026;
    box-shadow: var(--shadow);
}

.btn.secondary {
    border-color: var(--accent-silver);
    color: var(--orbital-white);
    background: rgba(255, 255, 255, 0.03);
}

.btn.ghost {
    border-color: transparent;
    color: var(--accent-lagoon);
    background: rgba(255, 255, 255, 0.08);
}

.btn.full-width {
    width: 100%;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:focus-visible {
    outline: 2px solid var(--accent-mint);
    outline-offset: 2px;
}

main {
    padding: 0 clamp(1.5rem, 5vw, 4rem) 4rem;
}

.visual-placeholder,
.mission-section,
.inquiry-section {
    margin-top: 3rem;
    padding: clamp(2rem, 4vw, 3.5rem);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    background: linear-gradient(160deg, rgba(7, 31, 65, 0.88), rgba(3, 18, 36, 0.92));
    border-radius: 32px;
    box-shadow: var(--shadow);
}

.visual-placeholder,
.mission-section {
    border: 1px solid var(--border);
}

.inquiry-section {
    background-image:
        linear-gradient(160deg, rgba(1, 12, 31, 0.85), rgba(1, 6, 18, 0.9)),
        url("../images/background.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border: none;
    border-radius: 0;
    width: calc(100% + 2 * clamp(1.5rem, 5vw, 4rem));
    margin-left: calc(-1 * clamp(1.5rem, 5vw, 4rem));
    margin-right: calc(-1 * clamp(1.5rem, 5vw, 4rem));
}

.visual-placeholder {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: clamp(1.5rem, 4vw, 3rem);
}

.placeholder-box {
    width: min(960px, 100%);
    height: clamp(220px, 40vw, 420px);
    border-radius: 32px;
    background: #f4f4f4;
    border: 2px dashed rgba(0, 0, 0, 0.08);
}

.visual-image {
    width: min(960px, 100%);
    border-radius: 32px;
    box-shadow: var(--shadow);
}

.mission-section h2 {
    text-align: center;
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
}

.mission-copy {
    text-align: center;
    color: var(--text-muted);
    max-width: 52ch;
    margin: 0;
}

.section-heading.center {
    text-align: center;
}

.inquiry-form {
    width: 100%;
    max-width: 520px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.inquiry-form input,
.inquiry-form textarea {
    width: 100%;
    padding: 0.95rem 1.15rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(0, 9, 20, 0.35);
    color: var(--orbital-white);
    font-size: 1rem;
}

.input-error {
    color: #ff7070;
    font-size: 0.85rem;
    margin: 4px 0 0 8px;
}

.form-feedback {
    margin-top: 1.25rem;
    color: var(--accent-mint);
    font-size: 0.95rem;
    text-align: center;
    min-height: 1.2em;
}

.form-feedback.is-error {
    color: #ff7070;
}

.inquiry-form input::placeholder,
.inquiry-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.inquiry-form input:focus,
.inquiry-form textarea:focus {
    outline: 2px solid var(--accent-lagoon);
    border-color: transparent;
}

.site-footer {
    padding: 3rem clamp(1.5rem, 5vw, 4rem);
    background: linear-gradient(180deg, rgba(2, 12, 30, 0.95), rgba(1, 6, 18, 0.98));
    margin-top: 4rem;
    position: relative;
}

.site-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: clamp(1.5rem, 5vw, 4rem);
    right: clamp(1.5rem, 5vw, 4rem);
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(104, 248, 255, 0.65), transparent);
    transform: translateY(-1.25rem);
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
}

.footer-brand,
.footer-contact {
    flex: 1 1 240px;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.footer-contact {
    text-align: right;
    padding-right: 2rem;
}

.footer-logo {
    max-width: 200px;
    width: 100%;
}

.footer-note {
    margin-top: 1.5rem;
    color: var(--text-muted);
    text-align: center;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-links {
        flex-direction: column;
        position: absolute;
        top: 100%;
        right: clamp(1.5rem, 5vw, 4rem);
        background: rgba(3, 17, 38, 0.95);
        padding: 1.25rem;
        border-radius: 24px;
        margin-top: 0.5rem;
        border: 1px solid var(--border);
        min-width: 220px;
        transform-origin: top right;
        transform: scale(0.9);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.2s ease, transform 0.2s ease;
    }

    .nav-links.is-open {
        opacity: 1;
        transform: scale(1);
        pointer-events: auto;
    }

    .btn {
        width: 100%;
    }

    .footer-grid {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-brand,
    .footer-contact {
        align-items: center;
        text-align: center;
        padding-right: 0;
    }
}

@media (max-width: 540px) {
    .footer-logo {
        max-width: 140px;
    }
}