:root {
    --landing-ink: #05263a;
    --landing-sea: #087d82;
    --landing-cyan: #43c4cc;
    --landing-white: #f7fbfa;
    --landing-muted: rgba(247, 251, 250, 0.76);
    --landing-display: "Avenir Next", "Gill Sans", "Century Gothic", sans-serif;
    --landing-body: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
}

* {
    box-sizing: border-box;
}

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

body {
    min-height: 100vh;
    min-height: 100svh;
    overflow-x: hidden;
    color: var(--landing-white);
    background: var(--landing-ink) url('../data/image/background_image.jpg') center / cover fixed;
    font-family: var(--landing-body);
    font-feature-settings: "kern" 1, "liga" 1;
}

a {
    color: inherit;
}

#video-background {
    position: fixed;
    inset: 0;
    z-index: -2;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.ocean-overlay {
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(circle at 72% 32%, rgba(67, 196, 204, 0.2), transparent 33%),
        linear-gradient(115deg, rgba(2, 24, 37, 0.92) 4%, rgba(3, 48, 65, 0.72) 48%, rgba(1, 20, 31, 0.88) 100%);
}

.landing-shell {
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
    min-height: 100svh;
    padding: clamp(1rem, 2.5vw, 2rem) clamp(1rem, 4vw, 4.5rem);
}

.landing-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    width: min(1180px, 100%);
    margin: 0 auto;
}

.landing-home {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    font-family: var(--landing-display);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.13em;
    text-decoration: none;
    text-transform: uppercase;
}

.landing-home img {
    width: 2.1rem;
    height: 2.1rem;
}

.landing-nav {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 2.6vw, 2.2rem);
}

.landing-nav a,
.landing-secondary {
    position: relative;
    color: var(--landing-muted);
    font-family: var(--landing-display);
    font-size: 0.86rem;
    font-weight: 700;
    letter-spacing: 0.025em;
    text-decoration: none;
}

.landing-nav a::after {
    position: absolute;
    right: 0;
    bottom: -0.4rem;
    left: 0;
    height: 2px;
    background: var(--landing-cyan);
    content: "";
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 180ms ease;
}

.landing-nav a:hover,
.landing-nav a:focus-visible,
.landing-secondary:hover,
.landing-secondary:focus-visible {
    color: #fff;
}

.landing-nav a:hover::after,
.landing-nav a:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
}

.landing-main {
    display: flex;
    align-items: center;
    width: min(1180px, 100%);
    margin: 0 auto;
    padding: clamp(4rem, 10vh, 8rem) 0;
}

.landing-hero {
    width: min(720px, 100%);
    animation: landing-rise 700ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.landing-eyebrow {
    margin: 0 0 1rem;
    color: #9be6e3;
    font-family: var(--landing-display);
    font-size: clamp(0.68rem, 1.3vw, 0.8rem);
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.brand-lockup {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 2.8vw, 2rem);
    width: min(720px, 100%);
    padding: 0.35rem 0;
}

.brand-emblem {
    display: block;
    flex: 0 0 auto;
    width: clamp(5.2rem, 12vw, 8.6rem);
    height: clamp(5.2rem, 12vw, 8.6rem);
    filter: drop-shadow(0 16px 26px rgba(0, 13, 21, 0.38));
}

.brand-wordmark {
    display: flex;
    flex: 1 1 auto;
    min-width: 0;
    flex-direction: column;
    align-items: flex-start;
    text-shadow: 0 4px 22px rgba(0, 12, 20, 0.72);
}

.brand-title {
    margin: 0;
    color: #fff;
    font-family: var(--landing-display);
    font-size: clamp(2.25rem, 5.7vw, 4.2rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 0.98;
    white-space: nowrap;
}

.brand-subtitle {
    margin: clamp(0.55rem, 1.2vw, 0.8rem) 0 0 0.12em;
    color: #b8ebe7;
    font-family: var(--landing-display);
    font-size: clamp(0.7rem, 1.35vw, 0.9rem);
    font-weight: 750;
    letter-spacing: 0.2em;
    line-height: 1;
    text-transform: uppercase;
    white-space: nowrap;
}

.brand-rule {
    width: min(100%, 31rem);
    height: 3px;
    margin-top: clamp(0.75rem, 1.5vw, 1rem);
    background: linear-gradient(90deg, #ff765f, #ff9a72 18%, var(--landing-cyan) 62%, transparent 100%);
    box-shadow: 0 0 18px rgba(67, 196, 204, 0.35);
}

.landing-summary {
    max-width: 690px;
    margin: 1.45rem 0 0;
    padding: 0.75rem 1rem 0.8rem 1.15rem;
    border-left: 2px solid rgba(116, 224, 218, 0.86);
    color: #fff;
    background: linear-gradient(90deg, rgba(2, 25, 38, 0.68), rgba(2, 25, 38, 0.24) 72%, transparent);
    font-family: var(--landing-display);
    font-size: clamp(1.08rem, 2vw, 1.42rem);
    font-weight: 650;
    letter-spacing: 0.005em;
    line-height: 1.55;
    text-shadow: 0 2px 14px rgba(0, 13, 21, 0.78);
    text-wrap: balance;
}

.landing-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem 1.4rem;
    margin-top: 2rem;
}

.landing-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    min-height: 3.2rem;
    padding: 0.85rem 1.35rem;
    border: 1px solid #73d9d5;
    border-radius: 999px;
    color: #032a38;
    background: linear-gradient(135deg, #a4ece5, #43c4cc);
    box-shadow: 0 12px 32px rgba(19, 174, 184, 0.25);
    font-family: var(--landing-display);
    font-size: 0.92rem;
    font-weight: 800;
    text-decoration: none;
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.landing-cta span {
    font-size: 1.2em;
    transition: transform 180ms ease;
}

.landing-cta:hover,
.landing-cta:focus-visible {
    box-shadow: 0 16px 38px rgba(19, 174, 184, 0.38);
    transform: translateY(-2px);
}

.landing-cta:hover span,
.landing-cta:focus-visible span {
    transform: translateX(3px);
}

.landing-secondary {
    padding: 0.7rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.34);
}

.landing-footer {
    display: flex;
    justify-content: space-between;
    gap: 1rem 2rem;
    width: min(1180px, 100%);
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.58);
    font-size: 0.72rem;
    letter-spacing: 0.03em;
}

.landing-footer p {
    margin: 0;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

:focus-visible {
    outline: 3px solid #f6df45;
    outline-offset: 4px;
}

@keyframes landing-rise {
    from {
        opacity: 0;
        transform: translateY(22px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 680px) {
    .landing-shell {
        padding: 1rem;
    }

    .landing-header {
        align-items: flex-start;
    }

    .landing-home span {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
    }

    .landing-nav {
        gap: 0.9rem;
    }

    .landing-nav a {
        font-size: 0.76rem;
    }

    .landing-main {
        padding: 3.5rem 0;
    }

    .brand-lockup {
        align-items: center;
        gap: 0.85rem;
    }

    .brand-emblem {
        width: clamp(4.4rem, 20vw, 5.5rem);
        height: clamp(4.4rem, 20vw, 5.5rem);
    }

    .brand-title {
        font-size: clamp(1.1rem, 5.6vw, 2.4rem);
        letter-spacing: -0.045em;
    }

    .brand-subtitle {
        margin-top: 0.45rem;
        font-size: clamp(0.52rem, 2.45vw, 0.78rem);
        letter-spacing: 0.08em;
        line-height: 1.35;
        white-space: normal;
    }

    .brand-rule {
        height: 2px;
        margin-top: 0.6rem;
    }

    .landing-summary {
        padding-left: 0.85rem;
        font-size: 1.05rem;
    }

    .landing-footer {
        flex-direction: column;
        padding-bottom: 0.3rem;
    }
}

@media (max-width: 430px) {
    .landing-header {
        flex-wrap: wrap;
        gap: 0.8rem;
    }

    .landing-nav {
        justify-content: space-between;
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    #video-background {
        display: none;
    }

    .landing-hero {
        animation: none;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}