/**
 * CM Live Card - Viewing Page Styles (Gift Envelope)
 *
 * Uses --cmc-theme-* CSS variables from CM Core Library for theme style inheritance.
 *
 * @package CM_Live_Card
 * @since 1.1.0
 */

/* Variables */
.cm-live-card-viewer {
    --cmc-theme-lv-primary: var(--cmc-plugin-primary);
    --cmc-theme-lv-primary-hover: color-mix(in srgb, var(--cmc-plugin-primary) 100%, #000 20%);
    --cmc-theme-lv-bg: var(--cmc-theme-background-color);
    --cmc-theme-lv-text: var(--cmc-theme-text-color);
    --cmc-theme-lv-text-muted: color-mix(in srgb, var(--cmc-theme-text-color) 60%, var(--cmc-theme-background-color));
    --cmc-theme-lv-surface: color-mix(in srgb, var(--cmc-theme-text-color) 4%, var(--cmc-theme-background-color));
    --cmc-theme-lv-border: color-mix(in srgb, var(--cmc-theme-text-color) 12%, var(--cmc-theme-background-color));
    --cmc-theme-lv-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    --cmc-theme-lv-shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
    --cmc-theme-lv-transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Envelope colors */
    --cmc-theme-lv-envelope-body: color-mix(in srgb, var(--cmc-plugin-primary) 12%, var(--cmc-theme-background-color));
    --cmc-theme-lv-envelope-flap: color-mix(in srgb, var(--cmc-plugin-primary) 18%, var(--cmc-theme-background-color));
    --cmc-theme-lv-envelope-liner: color-mix(in srgb, var(--cmc-plugin-primary) 8%, var(--cmc-theme-background-color));
}

/* Container */
.cm-live-card-viewer {
    width: 100%;
    max-width: 480px;
    margin: 40px auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    perspective: 1000px;
}

/* =========================================================================
   Envelope
   ========================================================================= */

.cm-live-card-viewer__envelope {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    width: 100%;
    animation: cm-lv-fade-in 0.6s ease-out;
}

.cm-live-card-viewer__envelope-body {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    max-width: 400px;
}

/* Envelope flap */
.cm-live-card-viewer__envelope-flap {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: var(--cmc-theme-lv-envelope-flap);
    border: 1px solid var(--cmc-theme-lv-border);
    border-bottom: none;
    clip-path: polygon(0 0, 50% 100%, 100% 0);
    z-index: 3;
    transform-origin: top center;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Envelope front */
.cm-live-card-viewer__envelope-front {
    position: absolute;
    top: 25%;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--cmc-theme-lv-envelope-body);
    border: 1px solid var(--cmc-theme-lv-border);
    border-radius: 0 0 8px 8px;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--cmc-theme-lv-shadow);
}

/* Envelope label */
.cm-live-card-viewer__envelope-label {
    text-align: center;
    padding: 20px;
}

.cm-live-card-viewer__envelope-to {
    font-size: 20px;
    font-weight: 700;
    color: var(--cmc-theme-lv-text);
    margin: 0 0 6px;
}

.cm-live-card-viewer__envelope-from {
    font-size: 14px;
    color: var(--cmc-theme-lv-text-muted);
    margin: 0;
    font-style: italic;
}

/* Card peek (inside envelope, behind front) */
.cm-live-card-viewer__card-peek {
    position: absolute;
    top: 5%;
    left: 10%;
    right: 10%;
    bottom: 30%;
    z-index: 1;
    overflow: hidden;
    border-radius: 8px;
}

.cm-live-card-viewer__card-peek img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.85);
}

/* Open button */
.cm-live-card-viewer__open-btn {
    font-size: 18px;
    padding: 16px 40px;
    animation: cm-lv-gentle-pulse 2s ease-in-out infinite;
}

/* =========================================================================
   Opening animation
   ========================================================================= */

.cm-live-card-viewer--opening .cm-live-card-viewer__envelope-flap {
    transform: rotateX(-180deg);
}

.cm-live-card-viewer--opening .cm-live-card-viewer__card-peek {
    animation: cm-lv-card-rise 1s 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.cm-live-card-viewer--opening .cm-live-card-viewer__envelope-front,
.cm-live-card-viewer--opening .cm-live-card-viewer__envelope-flap {
    animation: cm-lv-envelope-fade 0.5s 1.4s ease-out forwards;
}

.cm-live-card-viewer--opening .cm-live-card-viewer__open-btn {
    animation: none;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

@keyframes cm-lv-card-rise {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-60%);
        z-index: 5;
    }
}

@keyframes cm-lv-envelope-fade {
    to {
        opacity: 0;
        pointer-events: none;
    }
}

/* =========================================================================
   Card view
   ========================================================================= */

.cm-live-card-viewer__card {
    width: 100%;
    animation: cm-lv-card-appear 0.6s ease-out;
}

.cm-live-card-viewer__card-container {
    position: relative;
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--cmc-theme-lv-shadow-lg);
}

.cm-live-card-viewer__card-full {
    width: 100%;
    height: auto;
    display: block;
}

/* Message overlay */
.cm-live-card-viewer__message {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px 20px 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
    color: #fff;
}

.cm-live-card-viewer__message-text {
    font-size: 16px;
    line-height: 1.5;
    margin: 0 0 8px;
}

.cm-live-card-viewer__message-from {
    font-size: 14px;
    opacity: 0.8;
    margin: 0;
    font-style: italic;
}

/* =========================================================================
   Audio player
   ========================================================================= */

.cm-live-card-viewer__audio-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    margin-top: 16px;
    background: var(--cmc-theme-lv-surface);
    border-radius: 12px;
    border: 1px solid var(--cmc-theme-lv-border);
}

.cm-live-card-viewer__play-btn {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--cmc-theme-lv-primary);
    color: var(--cmc-theme-lv-bg);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: background var(--cmc-theme-lv-transition);
}

.cm-live-card-viewer__play-btn:hover {
    background: var(--cmc-theme-lv-primary-hover);
}

.cm-live-card-viewer__play-btn svg {
    width: 18px;
    height: 18px;
}

.cm-live-card-viewer__progress-bar {
    flex: 1;
    height: 4px;
    background: var(--cmc-theme-lv-border);
    border-radius: 2px;
    overflow: hidden;
    cursor: pointer;
}

.cm-live-card-viewer__progress-fill {
    height: 100%;
    width: 0%;
    background: var(--cmc-theme-lv-primary);
    border-radius: 2px;
    transition: width 0.1s linear;
}

.cm-live-card-viewer__time {
    font-size: 13px;
    color: var(--cmc-theme-lv-text-muted);
    font-variant-numeric: tabular-nums;
    min-width: 36px;
    text-align: right;
}

/* Audio element hidden */
.cm-live-card-viewer__audio {
    display: none;
}

/* =========================================================================
   Animations
   ========================================================================= */

@keyframes cm-lv-fade-in {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cm-lv-gentle-pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.04);
    }
}

@keyframes cm-lv-card-appear {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* =========================================================================
   Responsive
   ========================================================================= */

@media (max-width: 640px) {
    .cm-live-card-viewer {
        margin: 20px auto;
        padding: 0 16px;
    }

    .cm-live-card-viewer__envelope-to {
        font-size: 18px;
    }

    .cm-live-card-viewer__open-btn {
        font-size: 16px;
        padding: 14px 32px;
    }

    .cm-live-card-viewer__message-text {
        font-size: 14px;
    }

    .cm-live-card-viewer__audio-controls {
        padding: 12px 16px;
    }
}

/* =========================================================================
   Reduced motion
   ========================================================================= */

@media (prefers-reduced-motion: reduce) {
    .cm-live-card-viewer__envelope-flap {
        transition: none;
    }

    .cm-live-card-viewer__open-btn {
        animation: none;
    }

    .cm-live-card-viewer--opening .cm-live-card-viewer__card-peek {
        animation: none;
        transform: translateY(-60%);
        z-index: 5;
    }

    .cm-live-card-viewer--opening .cm-live-card-viewer__envelope-front,
    .cm-live-card-viewer--opening .cm-live-card-viewer__envelope-flap {
        animation: none;
        opacity: 0;
        pointer-events: none;
    }

    .cm-live-card-viewer__card {
        animation: none;
    }

    .cm-live-card-viewer__envelope {
        animation: none;
    }

    .cm-live-card-viewer__progress-fill {
        transition: none;
    }

    .cm-live-card-viewer__play-btn {
        transition: none;
    }
}

/* =========================================================================
   Focus visible
   ========================================================================= */

.cm-live-card-viewer__open-btn:focus-visible,
.cm-live-card-viewer__play-btn:focus-visible {
    outline: 3px solid var(--cmc-theme-lv-primary);
    outline-offset: 2px;
}