/*
 * VirtualRadio responsive layout layer
 *
 * The visual skin remains in styles.css. This file owns viewport fitting,
 * container-based component sizing, drawers and mobile-safe-area behavior.
 */

html {
    width: 100%;
    min-height: 100%;
    background: #0d0d0d;
}

body {
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    display: grid;
    grid-template-rows: minmax(0, 1fr) auto;
    justify-items: center;
    align-items: stretch;
    padding:
        max(10px, env(safe-area-inset-top))
        max(10px, env(safe-area-inset-right))
        max(8px, env(safe-area-inset-bottom))
        max(10px, env(safe-area-inset-left));
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.58);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    z-index: 1100;
}

body.channel-panel-open::before {
    opacity: 1;
    pointer-events: auto;
}

.app-shell {
    width: 100%;
    min-width: 0;
    min-height: 0;
    display: grid;
    place-items: center;
}

.radio-wrapper {
    width: 100%;
    min-width: 0;
    display: grid;
    place-items: center;
    gap: 0;
}

.radio {
    width: min(96vw, 1000px, calc(155vh - 130px));
    width: min(96vw, 1000px, calc(155dvh - 130px));
    min-width: min(280px, 94vw);
    max-width: 100%;
    margin: 0;
    padding: clamp(8px, 1.5vmin, 16px);
    transform: none;
    container-type: inline-size;
}

.front-panel {
    padding: clamp(8px, 2cqi, 16px);
}

.brand-section {
    margin-top: clamp(4px, 1.2cqi, 10px);
}

.brand-name {
    font-size: clamp(15px, 2.6cqi, 22px);
    letter-spacing: clamp(2px, 0.6cqi, 5px);
}

.brand-model {
    font-size: clamp(7px, 1.25cqi, 10px);
}

.handle {
    width: clamp(120px, 30cqi, 240px);
    height: clamp(16px, 3.8cqi, 28px);
    top: clamp(-28px, -3.8cqi, -16px);
}

.speaker-section {
    padding: clamp(10px, 2.8cqi, 22px);
    margin-bottom: clamp(7px, 2cqi, 16px);
}

.speaker-grid {
    height: clamp(42px, 11.5cqi, 100px);
    gap: clamp(2px, 0.42cqi, 4px);
}

.dial-section {
    padding: clamp(7px, 1.8cqi, 14px) clamp(8px, 2.2cqi, 18px);
    margin-bottom: clamp(7px, 2cqi, 16px);
}

.dial-header {
    display: grid;
    grid-template-columns: minmax(34px, auto) minmax(100px, 1fr) minmax(90px, auto);
    align-items: center;
    gap: clamp(5px, 1.5cqi, 14px);
}

.channel-display,
.freq-display {
    width: 100%;
    min-width: 0;
}

.channel-display-inner {
    min-width: 0;
    width: 100%;
    text-align: center;
}

.freq-display {
    justify-content: center;
}

.dial-scale {
    height: clamp(42px, 7.8cqi, 62px);
    margin-inline: clamp(4px, 1.5cqi, 12px);
}

.dial-track {
    top: clamp(30px, 5.4cqi, 42px);
}

.dial-mark {
    top: clamp(12px, 2.1cqi, 16px);
}

.dial-mark.major {
    height: clamp(32px, 6.4cqi, 48px);
}

.dial-mark.medium {
    height: clamp(18px, 3.7cqi, 28px);
}

.dial-label {
    font-size: clamp(8px, 1.35cqi, 11px);
    white-space: nowrap;
}

.dial-label.is-hidden {
    display: none;
}

.dial-pointer {
    top: clamp(16px, 3cqi, 22px);
    height: clamp(26px, 5cqi, 38px);
}

.controls {
    display: grid;
    grid-template-columns: repeat(4, minmax(54px, 1fr));
    align-items: start;
    gap: clamp(6px, 2cqi, 18px);
    padding: clamp(5px, 1.5cqi, 12px) 0;
}

.knob,
.volume-knob .knob {
    width: clamp(46px, 10cqi, 78px);
    height: clamp(46px, 10cqi, 78px);
    touch-action: none;
}

.power-switch {
    width: clamp(40px, 6.5cqi, 50px);
    height: clamp(40px, 6.5cqi, 50px);
}

.knob-label,
.power-label {
    font-size: clamp(8px, 1.3cqi, 10px);
}

.screw {
    width: clamp(12px, 2cqi, 16px);
    height: clamp(12px, 2cqi, 16px);
}

.footer-info {
    position: relative;
    inset: auto;
    transform: none;
    max-width: 100%;
    padding-top: 8px;
    text-align: center;
    white-space: normal;
    line-height: 1.6;
}

/* The station manager becomes a centered dialog on larger viewports. */
.channel-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    width: min(390px, calc(100vw - 32px));
    max-height: min(78vh, 680px);
    max-height: min(78dvh, 680px);
    padding: clamp(14px, 2.5vw, 22px);
    transform: translate(-50%, -54%) scale(0.98);
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 1200;
}

.channel-panel.visible {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
    pointer-events: auto;
    box-shadow:
        inset 0 2px 5px rgba(0, 0, 0, 0.6),
        0 15px 40px rgba(0, 0, 0, 0.9);
}

.channel-panel .tab-content {
    min-height: 0;
    max-height: min(52vh, 480px);
    max-height: min(52dvh, 480px);
}

.info-panel {
    display: block;
    right: max(10px, env(safe-area-inset-right));
    bottom: max(10px, env(safe-area-inset-bottom));
    width: max-content;
    max-width: min(340px, calc(100vw - 20px));
    max-height: calc(100dvh - 20px);
    overflow: hidden;
}

.info-panel.expanded {
    width: min(340px, calc(100vw - 20px));
}

.info-content {
    max-height: min(68vh, 620px);
    max-height: min(68dvh, 620px);
    overflow-y: auto;
    overscroll-behavior: contain;
}

@container (max-width: 520px) {
    .dial-header {
        grid-template-columns: minmax(34px, auto) minmax(0, 1fr);
    }

    .band-switch-container {
        grid-column: 1;
        grid-row: 1;
    }

    .freq-display {
        grid-column: 2;
        grid-row: 1;
    }

    .channel-display {
        grid-column: 1 / -1;
        grid-row: 2;
        min-height: 28px;
    }

    .controls {
        grid-template-columns: repeat(4, minmax(48px, 1fr));
    }
}

@media (max-width: 700px) {
    .channel-panel {
        top: auto;
        right: 0;
        bottom: 0;
        left: 0;
        width: 100%;
        max-height: min(86vh, 720px);
        max-height: min(86dvh, 720px);
        border-radius: 16px 16px 0 0;
        transform: translateY(105%);
    }

    .channel-panel.visible {
        transform: translateY(0);
    }

    .channel-panel .tab-content {
        max-height: min(62vh, 560px);
        max-height: min(62dvh, 560px);
    }

    .info-panel {
        right: max(8px, env(safe-area-inset-right));
        bottom: max(8px, env(safe-area-inset-bottom));
        max-width: calc(100vw - 16px);
        padding: 9px 11px;
    }

    .info-panel:not(.expanded) {
        bottom: max(44px, calc(env(safe-area-inset-bottom) + 44px));
    }

    .info-panel.expanded {
        width: calc(100vw - 16px);
        max-width: 420px;
    }

    .footer-info {
        font-size: 9px;
    }
}

@media (max-height: 520px) and (orientation: landscape) {
    body {
        grid-template-rows: minmax(0, 1fr);
        padding:
            max(4px, env(safe-area-inset-top))
            max(6px, env(safe-area-inset-right))
            max(4px, env(safe-area-inset-bottom))
            max(6px, env(safe-area-inset-left));
    }

    .radio {
        width: min(98vw, 940px, calc(170vh - 36px));
        width: min(98vw, 940px, calc(170dvh - 36px));
        margin: 0;
        transform: none;
    }

    .handle,
    .footer-info {
        display: none;
    }

    .speaker-section {
        padding-block: clamp(6px, 1.5cqi, 12px);
        margin-bottom: clamp(5px, 1.2cqi, 9px);
    }

    .speaker-grid {
        height: clamp(28px, 7cqi, 54px);
    }

    .dial-section {
        margin-bottom: clamp(4px, 1cqi, 8px);
    }

    .controls {
        padding-block: 2px;
    }

    .info-panel:not(.expanded) .info-title {
        display: none;
    }
}

/*
 * Full-screen console mode
 *
 * The radio is not treated as a fixed-ratio product card. It becomes the
 * viewport itself, while the speaker area absorbs any surplus height.
 */
body {
    height: 100vh;
    height: 100dvh;
    min-height: 0;
    display: block;
    padding:
        env(safe-area-inset-top, 0px)
        env(safe-area-inset-right, 0px)
        env(safe-area-inset-bottom, 0px)
        env(safe-area-inset-left, 0px);
    overflow: hidden;
    overscroll-behavior: none;
}

.app-shell,
.radio-wrapper {
    width: 100%;
    height: 100%;
    min-height: 0;
    display: block;
}

.radio-wrapper {
    overflow: hidden;
}

.radio {
    width: 100%;
    height: 100%;
    min-width: 0;
    max-width: none;
    margin: 0;
    padding: clamp(6px, 1.35vmin, 16px);
    padding-bottom: max(32px, calc(env(safe-area-inset-bottom, 0px) + 24px));
    display: flex;
    flex-direction: column;
    border-radius: 0;
    box-shadow: none;
    transform: none;
    overflow: hidden;
}

.front-panel {
    flex: 1;
    min-height: 0;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto auto;
    gap: clamp(5px, 1.2vmin, 14px);
    padding: clamp(8px, 1.8vmin, 18px);
    overflow: hidden;
}

.handle,
.stand {
    display: none;
}

.brand-section {
    margin: 0;
}

.brand-name {
    font-size: clamp(15px, 2.4vmin, 28px);
}

.brand-model {
    font-size: clamp(7px, 1.2vmin, 11px);
}

.speaker-section {
    --speaker-scale: 1;
    --speaker-opacity: 0.34;
    --speaker-warm: 0;
    min-height: 0;
    margin: 0;
    padding: clamp(8px, 2vmin, 22px);
    isolation: isolate;
    background:
        radial-gradient(ellipse at center, #202020 0%, #141414 55%, #0a0a0a 100%);
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.04),
        inset 0 8px 24px rgba(0, 0, 0, 0.72),
        inset 0 -3px 8px rgba(255, 255, 255, 0.025);
}

.speaker-section::before {
    content: '';
    position: absolute;
    inset: 5%;
    z-index: 0;
    border-radius: 20px;
    background:
        radial-gradient(circle closest-side at 50% 50%,
            rgba(255, 107, 53, var(--speaker-warm)) 0 7%,
            #343434 8% 14%,
            #202020 15% 29%,
            #0b0b0b 30% 42%,
            rgba(255, 255, 255, 0.035) 43% 44%,
            transparent 45%);
    opacity: var(--speaker-opacity);
    transform: scale(var(--speaker-scale));
    transition: transform 0.32s ease-out, opacity 0.32s ease-out;
    filter: drop-shadow(0 0 18px rgba(255, 107, 53, var(--speaker-warm)));
}

.speaker-section::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background:
        repeating-linear-gradient(0deg,
            rgba(255, 255, 255, 0.018) 0 1px,
            transparent 1px 4px),
        repeating-linear-gradient(90deg,
            rgba(255, 255, 255, 0.012) 0 1px,
            transparent 1px 5px);
    mix-blend-mode: screen;
}

.speaker-grid {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: block;
    width: auto;
    height: auto;
    min-height: 0;
    background-image:
        radial-gradient(circle at center,
            rgba(0, 0, 0, 0.98) 0 27%,
            rgba(70, 70, 70, 0.52) 29%,
            rgba(15, 15, 15, 0.86) 34%,
            transparent 38%);
    background-size:
        clamp(14px, 2vmin, 22px)
        clamp(14px, 2vmin, 22px);
    background-position: center;
    animation: none;
    opacity: 0.94;
}

.speaker-hole {
    display: none;
}

@container (min-width: 700px) {
    .speaker-section::before {
        background:
            radial-gradient(circle closest-side at 29% 50%,
                rgba(255, 107, 53, var(--speaker-warm)) 0 7%,
                #343434 8% 14%,
                #202020 15% 29%,
                #0b0b0b 30% 42%,
                rgba(255, 255, 255, 0.035) 43% 44%,
                transparent 45%),
            radial-gradient(circle closest-side at 71% 50%,
                rgba(255, 107, 53, var(--speaker-warm)) 0 7%,
                #343434 8% 14%,
                #202020 15% 29%,
                #0b0b0b 30% 42%,
                rgba(255, 255, 255, 0.035) 43% 44%,
                transparent 45%);
    }
}

.dial-section {
    margin: 0;
    padding: clamp(7px, 1.5vmin, 14px) clamp(8px, 1.8vmin, 18px);
}

.dial-scale {
    height: clamp(44px, 9vmin, 82px);
}

.controls {
    padding: clamp(3px, 1vmin, 10px) 0;
}

.knob,
.volume-knob .knob {
    width: clamp(46px, 10vmin, 100px);
    height: clamp(46px, 10vmin, 100px);
}

.power-switch {
    width: clamp(40px, 7vmin, 64px);
    height: clamp(40px, 7vmin, 64px);
}

.footer-info {
    position: fixed;
    right: 0;
    bottom: max(3px, env(safe-area-inset-bottom, 0px));
    left: 0;
    z-index: 900;
    padding: 0 8px;
    pointer-events: none;
}

.info-panel:not(.expanded) {
    top: max(8px, env(safe-area-inset-top, 0px));
    right: max(32px, calc(env(safe-area-inset-right, 0px) + 32px));
    bottom: auto;
    width: auto;
    padding: 7px 9px;
}

.info-panel:not(.expanded) .info-title {
    display: none;
}

.info-panel.expanded {
    top: auto;
    bottom: max(8px, env(safe-area-inset-bottom, 0px));
}

@media (max-height: 520px) and (orientation: landscape) {
    .radio {
        width: 100%;
        height: 100%;
        padding-bottom: clamp(6px, 1.35vmin, 12px);
    }

    .front-panel {
        grid-template-rows: auto minmax(0, 1fr) auto auto;
        gap: clamp(3px, 0.8vmin, 8px);
    }

    .dial-scale {
        height: clamp(40px, 10vmin, 62px);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}