@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;700;900&family=Space+Grotesk:wght@400;500;700&display=swap');

:root {
    --pink:        #EC4899;
    --pink-light:  #F472B6;
    --cyan:        #06B6D4;
    --cream:       #FDF2F8;
    --ink:         #831843;
    --black:       #0A0A0A;
    --nav-h:       64px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    background: var(--cream);
    color: var(--black);
    font-family: 'Space Grotesk', sans-serif;
    min-height: 100vh;
    -webkit-tap-highlight-color: transparent;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ====================== NAV ====================== */
nav.brutal-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: stretch;
    background: var(--cream);
    border-bottom: 4px solid var(--black);
    font-family: 'Archivo', sans-serif;
    font-weight: 900;
    height: var(--nav-h);
}
.nav-back, .nav-brand, .nav-info {
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    font-size: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--black);
}
.nav-back {
    background: var(--pink);
    color: var(--cream);
    border-right: 4px solid var(--black);
}
.nav-back:hover { background: var(--black); color: var(--pink); }
.nav-brand {
    flex: 1;
    justify-content: center;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}
.nav-info {
    background: var(--cyan);
    border-left: 4px solid var(--black);
    border-top: 0;
    border-bottom: 0;
    border-right: 0;
}
.nav-info:hover { background: var(--black); color: var(--cyan); }

/* ====================== STATUS ====================== */
.status {
    font-family: 'Archivo', sans-serif;
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink);
    padding: 0.5rem 1.5rem;
    background: var(--cream);
    border-bottom: 4px solid var(--black);
    display: none;
}
.status.show { display: block; }

/* ====================== STAGE ====================== */
.stage {
    background: var(--black);
    padding: 1.5rem;
    display: grid;
    place-items: center;
    min-height: calc(100vh - var(--nav-h) - 280px);
}
.grid-wrap {
    width: 100%;
    max-width: 640px;
    aspect-ratio: 1 / 1;
    background: var(--cream);
    border: 4px solid var(--cream);
    box-shadow: 8px 8px 0 var(--pink);
    overflow: hidden;
}
#grid {
    display: block;
    width: 100%;
    height: 100%;
    touch-action: none;
    cursor: pointer;
}

/* ====================== CONTROLS ====================== */
.controls {
    background: var(--cream);
    border-bottom: 4px solid var(--black);
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}
.btn {
    font-family: 'Archivo', sans-serif;
    font-weight: 900;
    font-size: 0.9rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.7rem 1.2rem;
    background: var(--pink);
    color: var(--cream);
    border: 4px solid var(--black);
    cursor: pointer;
    min-width: 100px;
}
.btn.alt { background: var(--cyan); color: var(--black); }
.btn.ghost { background: var(--cream); color: var(--black); }
.btn.on { background: var(--cyan); color: var(--black); }
.btn:hover { background: var(--black); color: var(--cream); }
.btn.alt:hover { background: var(--black); color: var(--cyan); }
.btn.ghost:hover { background: var(--pink); color: var(--cream); }

.tempo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    min-width: 240px;
    background: var(--cream);
    border: 3px solid var(--black);
    padding: 0.4rem 0.8rem;
}
.tempo-label {
    font-family: 'Archivo', sans-serif;
    font-weight: 900;
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--ink);
    min-width: 60px;
}
.tempo input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    flex: 1;
    height: 24px;
    background: transparent;
    cursor: pointer;
}
.tempo input[type="range"]::-webkit-slider-runnable-track {
    background: var(--cream);
    border: 3px solid var(--black);
    height: 24px;
}
.tempo input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--pink);
    border: 3px solid var(--black);
    margin-top: -3px;
    cursor: pointer;
}
.tempo input[type="range"]::-moz-range-track {
    background: var(--cream);
    border: 3px solid var(--black);
    height: 24px;
}
.tempo input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--pink);
    border: 3px solid var(--black);
    cursor: pointer;
    border-radius: 0;
}
.tempo-val {
    font-family: 'Archivo', sans-serif;
    font-weight: 900;
    font-size: 0.85rem;
    color: var(--black);
    background: var(--cream);
    border: 2px solid var(--black);
    padding: 0.2rem 0.5rem;
    min-width: 60px;
    text-align: center;
    letter-spacing: 0.05em;
}
.tempo-val::after { content: " BPM"; font-size: 0.65rem; }

/* ====================== FOOTER ====================== */
footer.brutal-foot {
    background: var(--black);
    color: var(--cream);
    font-family: 'Archivo', sans-serif;
    font-weight: 700;
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}
footer.brutal-foot .mark { font-weight: 900; font-size: 1rem; letter-spacing: -0.02em; }
footer.brutal-foot .mark .dot { color: var(--pink); }
footer.brutal-foot a:hover { color: var(--pink); }

/* ====================== INFO MODAL ====================== */
.info-modal {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 10, 0.75);
    z-index: 200;
    display: grid;
    place-items: center;
    padding: 1.5rem;
}
.info-modal[hidden] { display: none; }
.info-modal .content {
    background: var(--cream);
    border: 4px solid var(--black);
    box-shadow: 8px 8px 0 var(--pink);
    padding: 2rem;
    max-width: 540px;
    max-height: 86vh;
    overflow-y: auto;
}
.info-modal h2 {
    font-family: 'Archivo', sans-serif;
    font-weight: 900;
    font-size: 2rem;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    color: var(--black);
    margin-bottom: 1rem;
}
.info-modal h3 {
    font-family: 'Archivo', sans-serif;
    font-weight: 900;
    font-size: 0.85rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--ink);
    margin: 1.5rem 0 0.5rem;
}
.info-modal p {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--black);
    margin-bottom: 0.75rem;
}
.info-modal dl {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 0.4rem 1rem;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}
.info-modal dt {
    font-family: 'Archivo', sans-serif;
    font-weight: 900;
    background: var(--pink);
    color: var(--cream);
    padding: 0.15rem 0.4rem;
    border: 2px solid var(--black);
    text-align: center;
    letter-spacing: 0.05em;
}
.info-modal dd { padding-top: 0.2rem; }
.info-modal .close-row { margin-top: 1.5rem; }

/* ====================== RESPONSIVE ====================== */
@media (max-width: 600px) {
    :root { --nav-h: 56px; }
    .nav-back, .nav-info { padding: 0 1rem; font-size: 0.85rem; }
    .nav-brand { font-size: 1rem; padding: 0 0.5rem; }
    .stage { padding: 1rem; }
    .grid-wrap { box-shadow: 4px 4px 0 var(--pink); }
    .controls { padding: 1rem; gap: 0.6rem; }
    .btn { font-size: 0.8rem; padding: 0.6rem 0.9rem; min-width: 80px; }
    .tempo { min-width: 100%; }
    footer.brutal-foot { padding: 1rem 1.25rem; flex-direction: column; gap: 0.4rem; align-items: flex-start; }
}

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