/* ==========================================================================
   AL ResourcesLK — Custom Glassy Translucent & Colourless Video Player
   ========================================================================== */

/* Modal Backdrop */
#video-player-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    overflow-y: auto;
    animation: vp-fade-in 0.25s ease-out;
}

@keyframes vp-fade-in {
    from { opacity: 0; transform: scale(0.98); }
    to { opacity: 1; transform: scale(1); }
}

/* Modal Inner Card */
.vp-modal-card {
    width: 100%;
    max-width: 68rem;
    background: rgba(18, 18, 24, 0.7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.9), 0 0 40px rgba(255, 255, 255, 0.03);
    border-radius: 1.75rem;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Video Stage (16:9 Aspect Ratio) */
.vp-stage {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000000;
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
}

.vp-stage:-webkit-full-screen { width: 100% !important; height: 100% !important; border-radius: 0 !important; }
.vp-stage:fullscreen { width: 100% !important; height: 100% !important; border-radius: 0 !important; }

/* The YouTube Iframe */
.vp-iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: none;
    pointer-events: none; /* Passes clicks to custom overlay */
}

/* Click Overlay */
.vp-click-surface {
    position: absolute;
    inset: 0;
    z-index: 10;
    cursor: pointer;
}

/* Center Play/Pause Ripple Flash */
.vp-center-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.6);
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 15;
}

.vp-center-indicator.vp-flash {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* Glassy Resume Notification Pill */
.vp-resume-pill {
    position: absolute;
    top: 1.25rem;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    z-index: 25;
    background: rgba(20, 20, 25, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    border-radius: 9999px;
    padding: 0.45rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.95);
    font-size: 0.8rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.vp-resume-pill.vp-show {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.vp-restart-btn {
    background: rgba(255, 255, 255, 0.12);
    hover: background: rgba(255, 255, 255, 0.22);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border-radius: 9999px;
    padding: 0.2rem 0.65rem;
    font-size: 0.72rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.vp-restart-btn:hover {
    background: rgba(255, 255, 255, 0.24);
    transform: translateY(-1px);
}

/* Glassy Translucent Colourless Controls Bar */
.vp-controls-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 20;
    background: linear-gradient(180deg, rgba(10, 10, 14, 0) 0%, rgba(10, 10, 14, 0.65) 30%, rgba(10, 10, 14, 0.9) 100%);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.75rem 1.25rem 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    opacity: 1;
    transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    transform: translateY(0);
}

.vp-controls-bar.vp-idle {
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
}

/* Scrubber / Progress Bar Container */
.vp-scrubber-wrap {
    position: relative;
    width: 100%;
    height: 18px;
    display: flex;
    align-items: center;
    cursor: pointer;
}

.vp-track {
    position: relative;
    width: 100%;
    height: 4px;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.18);
    overflow: hidden;
    transition: height 0.15s ease;
}

.vp-scrubber-wrap:hover .vp-track {
    height: 6px;
}

.vp-buffered-bar {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0%;
    background: rgba(255, 255, 255, 0.32);
    border-radius: 9999px;
    transition: width 0.2s ease;
}

.vp-progress-bar {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0%;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 9999px;
}

.vp-scrubber-thumb {
    position: absolute;
    top: 50%;
    left: 0%;
    transform: translate(-50%, -50%) scale(0);
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.6), 0 2px 6px rgba(0, 0, 0, 0.5);
    transition: transform 0.15s ease;
    pointer-events: none;
}

.vp-scrubber-wrap:hover .vp-scrubber-thumb,
.vp-scrubber-wrap.vp-dragging .vp-scrubber-thumb {
    transform: translate(-50%, -50%) scale(1);
}

/* Scrubber Hover Tooltip */
.vp-time-tooltip {
    position: absolute;
    bottom: 24px;
    left: 0%;
    transform: translateX(-50%);
    background: rgba(18, 18, 24, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    padding: 0.15rem 0.5rem;
    font-family: monospace;
    font-size: 0.72rem;
    color: #ffffff;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

.vp-scrubber-wrap:hover .vp-time-tooltip {
    opacity: 1;
}

/* Controls Bottom Row */
.vp-controls-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.vp-btn-group {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

/* Glassy Action Buttons */
.vp-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: transparent;
    border: 1px solid transparent;
    color: rgba(255, 255, 255, 0.85);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.vp-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.18);
    color: #ffffff;
    transform: translateY(-1px);
}

.vp-btn:active {
    transform: scale(0.94);
}

/* Volume Wrap & Slider */
.vp-volume-wrap {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    position: relative;
}

.vp-volume-slider-box {
    width: 0;
    overflow: hidden;
    opacity: 0;
    transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
    display: flex;
    align-items: center;
}

.vp-volume-wrap:hover .vp-volume-slider-box,
.vp-volume-wrap:focus-within .vp-volume-slider-box {
    width: 72px;
    opacity: 1;
    margin-right: 0.35rem;
}

.vp-volume-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.25);
    outline: none;
    cursor: pointer;
}

.vp-volume-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 6px rgba(255, 255, 255, 0.6);
    cursor: pointer;
}

.vp-volume-range::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ffffff;
    border: none;
    cursor: pointer;
}

/* Time Display */
.vp-time-display {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.75);
    padding: 0 0.4rem;
    user-select: none;
    letter-spacing: 0.02em;
}

.vp-time-display span.vp-curr {
    color: #ffffff;
    font-weight: 600;
}

/* Speed Dropdown */
.vp-speed-wrap {
    position: relative;
}

.vp-speed-pill {
    padding: 0.25rem 0.65rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.vp-speed-pill:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

.vp-speed-menu {
    position: absolute;
    bottom: calc(100% + 8px);
    right: 0;
    background: rgba(18, 18, 24, 0.94);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.8);
    border-radius: 12px;
    padding: 0.35rem;
    display: none;
    flex-direction: column;
    min-width: 90px;
    z-index: 30;
}

.vp-speed-menu.vp-open {
    display: flex;
    animation: vp-fade-in 0.18s ease-out;
}

.vp-speed-opt {
    padding: 0.35rem 0.65rem;
    border-radius: 6px;
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.75rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: all 0.15s ease;
}

.vp-speed-opt:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

.vp-speed-opt.vp-active {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-weight: 700;
}

/* Lesson Card Watch Progress Bar */
.vp-card-progress-track {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.12);
    overflow: hidden;
}

.vp-card-progress-fill {
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 9999px;
    box-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.vp-resume-badge {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(15, 15, 20, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.95);
    font-size: 9px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 3px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}