/**
 * Readio - Premium Frontend Styles
 * Featuring a modern, high-fidelity responsive design with micro-animations and CSS variables.
 */

:root {
    /* Default fallbacks if PHP does not overwrite */
    --readio-accent: #6366f1;
    --readio-accent-rgb: 99, 102, 241;
    --readio-accent-bg: #6366f1;
    --readio-bg: rgba(255, 255, 255, 0.8);
    --readio-text: #1e293b;
    --readio-text-muted: #64748b;
    --readio-border: rgba(226, 232, 240, 0.8);
    --readio-radius: 16px;
    --readio-padding: 24px;
    --readio-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --readio-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --readio-backdrop-filter: blur(8px);
    --readio-player-bg: rgba(255, 255, 255, 0.35);
}

/* Base Widget Container */
.readio-widget {
    background: var(--readio-bg);
    border: 1px solid var(--readio-border);
    border-radius: var(--readio-radius);
    padding: var(--readio-padding);
    margin: 32px 0;
    box-shadow: var(--readio-shadow);
    backdrop-filter: var(--readio-backdrop-filter);
    -webkit-backdrop-filter: var(--readio-backdrop-filter);
    font-family: var(--readio-font);
    color: var(--readio-text) !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-sizing: border-box;
}

.readio-widget *, .readio-widget *::before, .readio-widget *::after {
    box-sizing: border-box;
}

/* Dark Mode support inside modern themes */
@media (prefers-color-scheme: dark) {
    /* Only auto-override if the user uses the responsive adaptive themes */
    .readio-widget.readio-theme-glass,
    .readio-widget.readio-theme-light {
        background: rgba(15, 23, 42, 0.65);
        border-color: rgba(51, 65, 85, 0.5);
        box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3);
        --readio-text: #f1f5f9;
        --readio-text-muted: #94a3b8;
        --readio-border: rgba(51, 65, 85, 0.5);
        --readio-player-bg: rgba(30, 41, 59, 0.45);
    }
}

/* Header with stats */
.readio-widget-header {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.readio-stat-pill {
    display: flex;
    align-items: center;
    background: rgba(var(--readio-accent-rgb), 0.06);
    border: 1px solid rgba(var(--readio-accent-rgb), 0.12);
    padding: 6px 14px;
    border-radius: 99px;
    transition: all 0.2s ease;
}

.readio-stat-pill:hover {
    background: rgba(var(--readio-accent-rgb), 0.1);
    transform: translateY(-1px);
}

.readio-pill-icon {
    font-size: 16px;
    margin-right: 8px;
    display: inline-flex;
    align-items: center;
}

.readio-pill-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--readio-accent);
    letter-spacing: -0.01em;
}

/* Player Panel Styling */
.readio-player-body {
    background: var(--readio-player-bg);
    border-radius: 12px;
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Buttons and Wave Line Container */
.readio-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

/* Premium Play/Pause Button */
.readio-action-play {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--readio-accent-bg);
    color: var(--readio-button-text, #ffffff) !important;
    border: none;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(var(--readio-accent-rgb), 0.35);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
}

.readio-action-play:hover {
    filter: brightness(1.08);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--readio-accent-rgb), 0.45);
}

.readio-action-play:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(var(--readio-accent-rgb), 0.3);
}

.readio-play-icon-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
}

.readio-play-icon-wrap svg {
    width: 100%;
    height: 100%;
}

/* Spinning Animation for loading indicator */
@keyframes readio-spin {
    to { transform: rotate(360deg); }
}
.readio-svg-spinner {
    animation: readio-spin 1s linear infinite;
}

.readio-play-label {
    letter-spacing: -0.01em;
}

/* Wave Sound Animation */
.readio-wave {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 24px;
    padding: 2px;
}

.readio-wave-bar {
    width: 3px;
    height: 100%;
    background-color: var(--readio-accent);
    border-radius: 3px;
    transform-origin: bottom;
    transition: transform 0.2s ease, opacity 0.2s ease;
    opacity: 0.3;
}

/* Bounce animation keyframe */
@keyframes readio-wave-bounce {
    0%, 100% { transform: scaleY(0.2); }
    50% { transform: scaleY(1.0); }
}

/* Apply bounce ONLY when playing is active */
.readio-wave.playing .readio-wave-bar {
    animation: readio-wave-bounce 0.8s ease-in-out infinite;
    opacity: 0.85;
}

.readio-wave.playing .readio-wave-bar:nth-child(1) { animation-delay: 0.1s; }
.readio-wave.playing .readio-wave-bar:nth-child(2) { animation-delay: 0.25s; }
.readio-wave.playing .readio-wave-bar:nth-child(3) { animation-delay: 0.15s; }
.readio-wave.playing .readio-wave-bar:nth-child(4) { animation-delay: 0.3s; }
.readio-wave.playing .readio-wave-bar:nth-child(5) { animation-delay: 0.2s; }

.readio-wave:not(.playing) .readio-wave-bar {
    transform: scaleY(0.2);
}

/* Timeline Custom Seek Slider */
.readio-timeline-container {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
    animation: readio-fade-in 0.3s ease forwards;
}

@keyframes readio-fade-in {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.readio-time-text {
    font-size: 11px;
    font-weight: 500;
    color: var(--readio-text-muted) !important;
    font-variant-numeric: tabular-nums;
    min-width: 32px;
}

.readio-progress-rail {
    position: relative;
    flex-grow: 1;
    height: 6px;
    background: rgba(var(--readio-accent-rgb), 0.15);
    border-radius: 99px;
    cursor: pointer;
    transition: height 0.2s ease;
}

.readio-progress-rail:hover {
    height: 8px;
}

.readio-progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--readio-accent-bg);
    border-radius: 99px;
    width: 0%;
    pointer-events: none;
}

.readio-progress-knob {
    position: absolute;
    top: 50%;
    left: 0%;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #ffffff;
    border: 3px solid var(--readio-accent);
    transform: translate(-50%, -50%) scale(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
    transition: transform 0.15s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    pointer-events: none;
}

.readio-progress-rail:hover .readio-progress-knob,
.readio-progress-rail:active .readio-progress-knob {
    transform: translate(-50%, -50%) scale(1);
}

/* Footer / Extra Options styling */
.readio-footer-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    border-top: 1px solid rgba(var(--readio-accent-rgb), 0.08);
    padding-top: 12px;
    animation: readio-fade-in 0.4s ease forwards;
}

/* Standard Control buttons */
.readio-control-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--readio-border);
    color: var(--readio-text-muted) !important;
    border-radius: 8px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.2s ease;
    outline: none;
}

.readio-control-btn:hover {
    color: var(--readio-text);
    border-color: rgba(var(--readio-accent-rgb), 0.3);
    background: rgba(var(--readio-accent-rgb), 0.04);
}

/* Speed Selection Selector dropdown */
.readio-speed-control {
    position: relative;
}

.readio-speed-menu {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    background: #ffffff;
    border: 1px solid var(--readio-border);
    border-radius: 8px;
    padding: 4px;
    margin: 0;
    list-style: none;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    display: none;
    flex-direction: column;
    min-width: 70px;
    z-index: 99;
}

@media (prefers-color-scheme: dark) {
    .readio-speed-menu {
        background: #1e293b;
    }
}

.readio-speed-menu li {
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 500;
    color: var(--readio-text-muted) !important;
    cursor: pointer;
    border-radius: 5px;
    transition: all 0.15s ease;
    text-align: center;
}

.readio-speed-menu li:hover {
    background: rgba(var(--readio-accent-rgb), 0.08);
    color: var(--readio-accent);
}

.readio-speed-menu li.active {
    background: var(--readio-accent);
    color: #ffffff;
}

/* Voice Indicator Badge */
.readio-mode-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
}

.readio-indicator-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #10b981; /* Green active dot */
    display: inline-block;
}

.readio-indicator-text {
    font-size: 11px;
    font-weight: 600;
    color: var(--readio-text-muted) !important;
}

/* Download button */
.readio-btn-download svg {
    stroke: var(--readio-text-muted) !important;
}
.readio-btn-download:hover svg {
    stroke: var(--readio-accent);
}