@font-face {
    font-family: Kanit;
    src: url('fonts/Kanit/Kanit-Regular.ttf') format('truetype');
    font-display: swap
}

:root {
    color-scheme: light;
    --ink: #103c51;
    --muted: #486674;
    --cream: #f5f9f7;
    --gold: #ffde86
}

* {
    box-sizing: border-box
}

body {
    margin: 0;
    font: 16px/1.6 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--ink);
    background: #005eb8
}

button,
a {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation
}

button {
    font: inherit;
    cursor: pointer
}

a {
    color: inherit
}

button:focus-visible,
a:focus-visible,
canvas:focus-visible {
    outline: 3px solid var(--gold);
    outline-offset: 4px
}

[hidden] {
    display: none !important
}

.game-page {
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    overscroll-behavior: none
}

#ocean {
    position: fixed;
    inset: 0
}

canvas {
    display: block;
    touch-action: none
}

.game-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: max(16px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right)) 16px max(24px, env(safe-area-inset-left));
    pointer-events: none;
    color: white;
    background: linear-gradient(#004585a6, transparent)
}

.game-header>* {
    pointer-events: auto
}

.brand {
    font-family: Kanit, system-ui, sans-serif;
    font-size: 28px;
    font-weight: bold;
    text-decoration: none;
    letter-spacing: 1px
}

.brand span {
    color: var(--gold)
}

.progress {
    margin-left: auto;
    font-size: 14px
}

.tool {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 9px 15px;
    border: 1px solid #ffffff70;
    border-radius: 30px;
    background: #044b86;
    color: white;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap
}

.tool:hover {
    background: #073b63
}

.tool[aria-pressed=true] {
    background: var(--gold);
    color: var(--ink)
}

.game-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    padding: 16px max(24px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
    color: white;
    pointer-events: none;
    background: linear-gradient(transparent, #003968a6)
}

.game-tools {
    display: flex;
    gap: 8px;
    pointer-events: auto
}

.explore-hint {
    display: grid;
    gap: 4px;
    font-size: 13px
}

.eyebrow {
    font-size: 11px;
    font-weight: 750;
    letter-spacing: 1.7px;
    text-transform: uppercase
}

.explore-hint .eyebrow {
    color: var(--gold)
}

#loading {
    position: fixed;
    inset: 0;
    display: grid;
    place-items: center;
    color: white;
    background: #005eb8;
    z-index: 5
}

dialog {
    width: min(520px, calc(100% - 32px));
    max-height: calc(100vh - 32px);
    max-height: calc(100dvh - 32px);
    padding: 0;
    border: 0;
    border-radius: 24px;
    color: var(--ink);
    background: var(--cream);
    box-shadow: 0 24px 100px #00294f70;
    overscroll-behavior: contain
}

dialog::backdrop {
    background: #002b4a99;
    backdrop-filter: blur(5px)
}

.fact-card {
    padding: 28px
}

.fact-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px
}

.fact-top .eyebrow {
    color: #54716e
}

.close {
    flex: none;
    width: 44px;
    height: 44px;
    border: 1px solid #cbdad8;
    border-radius: 50%;
    background: transparent;
    color: var(--ink);
    font-size: 26px;
    line-height: 1
}

.fact-card h1 {
    font-size: clamp(25px, 5vw, 36px);
    line-height: 1.15;
    letter-spacing: -1px;
    margin: 22px 0 18px;
    font-weight: 750
}

.fact-card p {
    font-size: 18px;
    line-height: 1.75;
    margin: 0 0 22px;
    color: #345566
}

.fact-card>a {
    font-size: 13px;
    text-underline-offset: 4px;
    color: #276b72
}

.fact-bottom {
    border-top: 1px solid #dce4df;
    margin-top: 28px;
    padding-top: 20px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px
}

.fact-bottom span {
    font-size: 12px;
    color: var(--muted)
}

.primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    border: 0;
    border-radius: 30px;
    background: var(--gold);
    color: var(--ink);
    font-weight: 750;
    padding: 12px 22px;
    text-decoration: none
}

.primary:hover {
    background: #f5ce66
}

.guide-list {
    margin-top: 20px;
    display: grid;
    gap: 8px
}

.guide-list button {
    text-align: left;
    padding: 12px 16px;
    border: 1px solid #cbdad8;
    border-radius: 12px;
    background: white;
    color: var(--ink);
    min-height: 48px
}

.landing {
    min-height: 100vh;
    min-height: 100dvh;
    background: radial-gradient(ellipse at 60% 30%, #168db9, #005eb8 70%);
    color: white;
    padding: 32px max(24px, env(safe-area-inset-left));
    display: flex;
    flex-direction: column
}

.landing header {
    display: flex;
    justify-content: space-between;
    align-items: center
}

.landing main {
    width: min(1060px, 100%);
    margin: auto;
    padding: 40px 0
}

.intro {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    align-items: center;
    gap: 40px
}

.intro h1,
.selection-title {
    font-size: clamp(42px, 7vw, 88px);
    line-height: 1.05;
    letter-spacing: -3px;
    margin: 20px 0
}

.intro p {
    font-size: 18px;
    max-width: 480px;
    color: #dbeefa;
    margin-bottom: 30px
}

.hero-shark {
    width: 100%;
    max-height: 400px;
    object-fit: contain;
    filter: drop-shadow(0 24px 36px #003b6560)
}

.landing footer {
    font-size: 12px;
    color: #d3e8f4
}

.landing .eyebrow {
    color: var(--gold)
}

.selection-title {
    font-size: clamp(36px, 6vw, 60px);
    letter-spacing: -2px
}

.selection-intro {
    color: #dbeefa;
    margin-bottom: 32px
}

.characters {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px
}

.character {
    display: flex;
    flex-direction: column;
    background: var(--cream);
    color: var(--ink);
    border-radius: 24px;
    padding: 24px;
    text-decoration: none;
    transition: transform .15s
}

.character:hover {
    transform: translateY(-5px)
}

.character img {
    width: 100%;
    height: 180px;
    object-fit: contain
}

.character h2 {
    font-size: 26px;
    margin: 12px 0 0
}

.character .species {
    color: #3a6971;
    font-size: 13px
}

.character p {
    font-size: 15px;
    line-height: 1.65;
    margin: 14px 0 24px
}

.character .primary {
    margin-top: auto
}

@media(max-width:640px) {
    .game-header {
        gap: 10px;
        padding-left: 16px;
        padding-right: 16px
    }

    .brand {
        font-size: 22px
    }

    .progress {
        font-size: 11px
    }

    .tool {
        padding: 9px 12px;
        font-size: 12px
    }

    .game-footer {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        padding-left: 12px;
        padding-right: 12px
    }

    .explore-hint {
        text-align: center;
        font-size: 12px
    }

    .explore-hint .eyebrow {
        display: none
    }

    .game-tools {
        justify-content: center
    }

    .fact-card {
        padding: 22px
    }

    .fact-card p {
        font-size: 17px
    }

    .intro {
        grid-template-columns: 1fr;
        gap: 20px
    }

    .hero-shark {
        max-height: 210px;
        grid-row: 1
    }

    .landing {
        padding: 20px
    }

    .landing main {
        padding: 30px 0
    }

    .intro h1 {
        letter-spacing: -2px
    }

    .characters {
        grid-template-columns: 1fr
    }

    .character {
        display: grid;
        grid-template-columns: 95px 1fr;
        gap: 0 16px
    }

    .character img {
        grid-row: 1/4;
        height: 130px
    }

    .character h2 {
        margin-top: 0
    }

    .character p {
        margin: 10px 0 20px
    }

    .character .primary {
        grid-column: 1/-1
    }
}

@media(max-height:480px) {
    .explore-hint {
        display: none
    }

    .game-footer {
        padding-bottom: 10px
    }

    .game-header {
        padding-top: 8px
    }

    dialog {
        max-height: calc(100dvh - 16px)
    }

    .fact-card {
        padding: 18px 24px
    }

    .fact-card h1 {
        margin: 8px 0 12px
    }

    .fact-bottom {
        margin-top: 16px;
        padding-top: 12px
    }
}

@media(prefers-reduced-motion:reduce) {
    * {
        transition: none !important
    }
}

/* A soft patch of shallow water separates Jack from the deeper ocean. */
.hero-water {
    display: grid;
    place-items: center;
    min-height: 380px;
    background: radial-gradient(ellipse at center, #88d9d0aa 0%, #51bac278 34%, #168db900 70%)
}

.hero-water picture {
    display: block;
    width: 100%;
    text-align: center
}

.hero-water .hero-shark {
    width: min(90%, 380px);
    height: 360px;
    filter: drop-shadow(0 18px 18px #003b6540)
}

.selection-intro {
    margin-bottom: 18px
}

.how-to-play {
    padding: 18px 24px;
    margin-bottom: 28px;
    border-left: 4px solid var(--gold);
    border-radius: 0 16px 16px 0;
    background: #003d7270;
    color: #f3fbff
}

.how-to-play h2 {
    font-size: 16px;
    margin: 0 0 5px;
    color: var(--gold)
}

.how-to-play p {
    font-size: 15px;
    line-height: 1.7;
    margin: 0;
    max-width: 900px
}

.how-to-play .play-extra {
    margin-top: 5px;
    color: #d6eef6;
    font-size: 13px
}

.found-status {
    display: grid;
    gap: 6px;
    border-left: 3px solid #419781;
    padding: 10px 14px;
    background: #e7f1eb;
    margin: 0 0 20px;
    border-radius: 0 10px 10px 0
}

.found-status strong {
    font-size: 13px;
    color: #24654e
}

.found-status span {
    font-size: 13px;
    line-height: 1.6;
    color: #345566
}

#encounter {
    position: fixed;
    left: 50%;
    bottom: calc(116px + env(safe-area-inset-bottom));
    transform: translateX(-50%);
    max-width: calc(100% - 28px);
    width: max-content;
    padding: 10px 18px;
    background: #fff0bf;
    color: #173f48;
    border-radius: 14px;
    box-shadow: 0 6px 22px #003b6530;
    font-size: 14px;
    font-weight: 650;
    text-align: center;
    pointer-events: none
}

@media(max-width:640px) {
    .hero-water {
        grid-row: 1;
        min-height: 230px
    }

    .hero-water .hero-shark {
        height: 230px;
        max-height: 230px;
        width: 260px
    }

    .how-to-play {
        padding: 16px 18px
    }

    .how-to-play p {
        font-size: 14px
    }

    #encounter {
        font-size: 13px
    }
}

@media(max-height:480px) {
    #encounter {
        bottom: 76px;
        padding: 7px 14px
    }

    .found-status {
        margin-bottom: 14px
    }
}

@media(min-width:641px) {
    .intro h1 {
        font-size: clamp(42px, 5vw, 68px);
        letter-spacing: -2px
    }
}

.completion-screen {
    background: radial-gradient(ellipse at top right, #d3eee4, transparent 65%), var(--cream)
}

.completion-screen .fact-top .eyebrow {
    color: #286950
}

.completion-screen h1 {
    font-size: clamp(30px, 6vw, 42px)
}

.completion-screen .fact-bottom {
    border-color: #bdd9cb
}

.completion-screen .fact-bottom span {
    color: #286950;
    font-weight: 700
}