/* ===== ALLMER MUSIC INSTRUMENTS — Hub Styles ===== */

:root {
    --bg:        #050508;
    --primary:   #00f3ff;
    --secondary: #bc13fe;
    --font-display: 'Orbitron', sans-serif;
    --font-ui:      'Rajdhani', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html { height: 100%; }

body {
    background-color: var(--bg);
    background-image: radial-gradient(circle at 50% 30%, #12123a 0%, #050508 65%);
    color: #fff;
    font-family: var(--font-ui);
    min-height: 100vh;
}

/* ===== PAGE SHELL ===== */
.page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: env(safe-area-inset-top, 0) env(safe-area-inset-right, 0)
             env(safe-area-inset-bottom, 0) env(safe-area-inset-left, 0);
}

/* ===== HEADER ===== */
.hub-header {
    width: 100%;
    padding: 24px 40px 20px;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-shrink: 0;
}

.back-to-sa {
    font-family: var(--font-ui);
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.45);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 6px 12px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 4px;
    background: transparent;
    transition: 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.back-to-sa:hover,
.back-to-sa:active {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.07);
}

.hub-title {
    font-family: var(--font-display);
    font-size: clamp(1rem, 3.5vw, 1.6rem);
    letter-spacing: 3px;
    color: var(--primary);
    text-shadow: 0 0 24px rgba(0, 243, 255, 0.25);
    line-height: 1.2;
}

.title-break { display: none; }

/* ===== MAIN ===== */
.hub-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px 40px 40px;
}

.tagline {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.3);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 48px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.tagline-logo-link {
    display: inline-flex;
    align-items: center;
    opacity: 0.45;
    transition: opacity 0.2s;
}

.tagline-logo-link:hover { opacity: 0.85; }

.tagline-logo {
    height: 18px;
    width: auto;
    display: block;
}

/* ===== INSTRUMENT GRID ===== */
.instruments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 380px));
    gap: 28px;
    justify-content: center;
    width: 100%;
    max-width: 900px;
}

/* ===== INSTRUMENT CARD ===== */
.instrument-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 32px 28px;
    border-radius: 12px;
    border: 1px solid rgba(0, 243, 255, 0.2);
    background: rgba(255, 255, 255, 0.025);
    text-decoration: none;
    color: #fff;
    overflow: hidden;
    transition: border-color 0.3s, background 0.3s, transform 0.2s;
    cursor: pointer;
    user-select: none;
    min-height: 260px;
}

.instrument-card:not(.locked):hover {
    border-color: rgba(0, 243, 255, 0.6);
    background: rgba(0, 243, 255, 0.04);
    transform: translateY(-3px);
}

.instrument-card:not(.locked):active {
    transform: translateY(0) scale(0.99);
}

.card-glow {
    position: absolute;
    inset: 0;
    border-radius: 12px;
    box-shadow: 0 0 0 0 var(--primary);
    transition: box-shadow 0.3s;
    pointer-events: none;
}

.instrument-card:not(.locked):hover .card-glow {
    box-shadow: 0 0 40px -10px rgba(0, 243, 255, 0.35);
}

.card-badge {
    font-family: var(--font-display);
    font-size: 0.62rem;
    color: var(--secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.card-name {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2rem);
    letter-spacing: 4px;
    color: var(--primary);
    text-shadow: 0 0 18px rgba(0, 243, 255, 0.2);
    margin-bottom: 16px;
}

.card-desc {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.55);
    flex: 1;
    margin-bottom: 24px;
}

.card-action {
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 2px;
    color: var(--primary);
    border: 1px solid rgba(0, 243, 255, 0.35);
    padding: 8px 20px;
    border-radius: 4px;
    display: inline-block;
    width: fit-content;
    transition: 0.2s;
}

.instrument-card:not(.locked):hover .card-action {
    background: var(--primary);
    color: #000;
    box-shadow: 0 0 16px rgba(0, 243, 255, 0.4);
}

/* Locked / coming soon */
.instrument-card.locked {
    border-color: rgba(255, 255, 255, 0.06);
    cursor: default;
}

.locked-badge { color: rgba(255, 255, 255, 0.25); }
.locked-name  { color: rgba(255, 255, 255, 0.15); text-shadow: none; }
.locked-action {
    color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.1);
    letter-spacing: 3px;
}
.instrument-card.locked .card-desc { color: rgba(255, 255, 255, 0.2); }

/* ===== FOOTER ===== */
.hub-footer {
    padding: 20px 40px;
    text-align: center;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.18);
    letter-spacing: 1px;
    flex-shrink: 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
    .hub-header {
        padding: 16px 18px 14px;
        gap: 14px;
        flex-wrap: wrap;
    }

    .hub-title {
        font-size: clamp(0.9rem, 4.5vw, 1.2rem);
        letter-spacing: 2px;
    }

    .title-break { display: inline; }

    .hub-main { padding: 20px 18px 30px; }

    .tagline {
        font-size: 0.72rem;
        letter-spacing: 2px;
        margin-bottom: 30px;
    }

    .instruments-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .instrument-card { padding: 24px 20px; min-height: auto; }
    .card-name { font-size: 1.5rem; }
}