/* Island Bomber — styles communs (accueil + jeu).
   Palette tirée des sprites : sable, bois des tonneaux, palmiers, lagon. */
:root {
    --sea-deep: #0a5c78;
    --sea: #1aa3c0;
    --sea-light: #3ec6cf;
    --foam: #e8fbff;
    --sand-light: #fdf1d3;
    --sand: #f6dca3;
    --sand-deep: #dcb46e;
    --wood: #8a5a2b;
    --wood-dark: #5e3a17;
    --palm: #45a843;
    --palm-dark: #2d7a2b;
    --sunset: #ff8a3d;
    --sunset-dark: #d8611d;
    --ink: #3b2412;
    --red: #e0453a;
    --blue: #2f86d6;
    --green: #3fae45;
    --yellow: #e0a810;
    --ai: #3a3f4a;
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; }
/* fond de secours sous le dégradé (défilement mobile, iOS sans attachment fixed) */
html { background: var(--sea-deep); }

body {
    font-family: 'Baloo 2', 'Trebuchet MS', sans-serif;
    font-size: 17px;
    color: var(--ink);
    background: linear-gradient(180deg, var(--sea-light) 0%, var(--sea) 45%, var(--sea-deep) 100%);
    background-attachment: fixed;
    overflow-x: hidden;
}

/* ---- Océan animé en fond ---- */
.ocean {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    /* reflets du soleil sur l'eau */
    background:
        radial-gradient(ellipse at 20% 15%, rgba(255, 255, 255, .25), transparent 40%),
        radial-gradient(ellipse at 85% 30%, rgba(255, 255, 255, .15), transparent 35%);
}
.wave {
    position: absolute;
    left: -10%;
    width: 120%;
    height: 90px;
    bottom: 0;
    opacity: .22;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 240 40' preserveAspectRatio='none'%3E%3Cpath d='M0 20 Q30 4 60 20 T120 20 T180 20 T240 20 V40 H0Z' fill='%23e8fbff'/%3E%3C/svg%3E") repeat-x bottom;
    background-size: 240px 90px;
    animation: swell 9s ease-in-out infinite;
}
.wave2 {
    bottom: 34px;
    opacity: .12;
    animation-duration: 13s;
    animation-direction: reverse;
}
@keyframes swell {
    0%, 100% { transform: translateX(0) translateY(0); }
    50% { transform: translateX(-60px) translateY(6px); }
}

/* ---- Logo ---- */
.logo {
    font-family: 'Pacifico', cursive;
    color: var(--sand-light);
    text-decoration: none;
    line-height: 1.1;
    text-shadow: 0 3px 0 var(--wood), 0 6px 14px rgba(0, 40, 60, .45);
    letter-spacing: 1px;
}

/* ---- Cartes (panneaux sable) ---- */
.card {
    background: var(--sand-light);
    border-radius: 22px;
    padding: 20px 22px;
    box-shadow: 0 6px 0 var(--sand-deep), 0 18px 34px rgba(0, 40, 60, .3);
}
.card-title {
    font-family: 'Pacifico', cursive;
    font-weight: 400;
    color: var(--wood);
    font-size: 26px;
}

/* ---- Boutons ---- */
.btn {
    font-family: inherit;
    font-size: 17px;
    font-weight: 800;
    color: #fff;
    background: var(--palm);
    border: none;
    border-radius: 14px;
    padding: 10px 20px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 0 var(--palm-dark);
    transition: transform .12s, box-shadow .12s, filter .12s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 0 var(--palm-dark); filter: brightness(1.06); }
.btn:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--palm-dark); }
.btn:focus-visible { outline: 3px solid var(--foam); outline-offset: 3px; }

.btn-primary { background: var(--sunset); box-shadow: 0 4px 0 var(--sunset-dark); }
.btn-primary:hover { box-shadow: 0 6px 0 var(--sunset-dark); }
.btn-primary:active { box-shadow: 0 1px 0 var(--sunset-dark); }

.btn-secondary { background: var(--wood); box-shadow: 0 4px 0 var(--wood-dark); }
.btn-secondary:hover { box-shadow: 0 6px 0 var(--wood-dark); }
.btn-secondary:active { box-shadow: 0 1px 0 var(--wood-dark); }

.btn-ghost {
    background: rgba(255, 255, 255, .18);
    box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .6);
}
.btn-ghost:hover { box-shadow: inset 0 0 0 2px #fff; }
.btn-ghost:active { box-shadow: inset 0 0 0 2px #fff; }

.btn-big { font-size: 22px; padding: 14px 28px; border-radius: 18px; }
.btn-small { font-size: 15px; padding: 6px 14px; }

input[type="text"] {
    font-family: inherit;
    font-size: 17px;
    font-weight: 700;
    color: var(--ink);
    background: #fff;
    border: 2px solid var(--sand-deep);
    border-radius: 14px;
    padding: 9px 14px;
    min-width: 0;
}
input[type="text"]::placeholder { color: #b89868; font-weight: 600; }
input[type="text"]:focus { outline: none; border-color: var(--sunset); box-shadow: 0 0 0 3px rgba(255, 138, 61, .25); }

kbd {
    display: inline-block;
    min-width: 1.6em;
    padding: 0 6px;
    border-radius: 6px;
    background: var(--sand-light);
    color: var(--ink);
    box-shadow: 0 2px 0 var(--sand-deep);
    font-family: inherit;
    font-weight: 800;
    text-align: center;
}

/* Icône tirée de l'atlas de sprites (voir spriteCss() dans les pages) */
.sprite { display: inline-block; background-repeat: no-repeat; }

@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop-in {
    from { opacity: 0; transform: translate(-50%, -50%) scale(.8); }
    to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
    .wave, .card, #gameControls, .end-card { animation: none !important; }
    .btn { transition: none; }
}