/*
 * Ausdawer University — Global Design System & TV Compatibility Stylesheet
 * Optimized for Smart TV Browsers, Remote Control D-Pad Navigation & 10-Foot Viewing
 */

/* ==========================================================================
   1. High-Contrast Focus Ring System (Remote Control & Keyboard Navigation)
   ========================================================================== */

/* Universal Focus Outline for All Interactive Targets */
:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
video:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid #38bdf8 !important;
    outline-offset: 3px !important;
    box-shadow: 0 0 16px rgba(56, 189, 248, 0.75), 0 0 0 1px #0284c7 !important;
    transition: outline-offset 0.1s ease, box-shadow 0.1s ease !important;
    z-index: 10 !important;
}

/* Fallback for Smart TV browsers that do not support :focus-visible */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible),
video:focus:not(:focus-visible),
[tabindex]:focus:not(:focus-visible) {
    outline: 3px solid #38bdf8;
    outline-offset: 3px;
    box-shadow: 0 0 14px rgba(56, 189, 248, 0.6);
}

/* Interactive Card Elevation & Glow on Focus */
.course-card:focus-within,
.course-card-item:focus-within,
.sp-course-card:focus-within {
    border-color: #38bdf8 !important;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.4), 0 12px 24px rgba(0, 0, 0, 0.6) !important;
    transform: translateY(-3px) scale(1.01) !important;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease !important;
}

/* ==========================================================================
   2. Television 10-Foot Viewing Typography & Overscan Handling
   ========================================================================== */

/* Safe-Area Inset / Overscan Margins */
@supports (padding: max(0px)) {
    body {
        padding-left: max(0px, env(safe-area-inset-left, 0px));
        padding-right: max(0px, env(safe-area-inset-right, 0px));
    }
}

/* TV & Large Display Sizing (> 960px) */
@media screen and (min-width: 960px) {
    body {
        font-size: 16px;
    }
    .header-content,
    .main-container,
    .container {
        max-width: 1280px;
    }
    .hero-title,
    .login-title {
        letter-spacing: -0.5px;
    }
}

/* Prevent horizontal overflow on TV displays */
html, body {
    overflow-x: hidden;
}

/* ==========================================================================
   3. Accessible Remote Control Hit Targets & Buttons (Min 44px)
   ========================================================================== */

.btn,
.btn-primary,
.btn-secondary,
.btn-logout,
.btn-signin,
.tab-btn,
.sp-btn {
    min-height: 44px;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    touch-action: manipulation;
}

.tab-btn:focus-visible {
    background: rgba(255, 255, 255, 0.15) !important;
    border-bottom-color: #38bdf8 !important;
    color: #ffffff !important;
}

/* ==========================================================================
   4. Smart TV Video Player Container & Remote Media Navigation
   ========================================================================== */

.tv-video-container {
    position: relative;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    background: #000000;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.7);
    border: 1px solid #1e293b;
}

.tv-video-container:focus-within {
    border-color: #38bdf8;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.5), 0 12px 30px rgba(0, 0, 0, 0.7);
}

.tv-video-player {
    width: 100%;
    height: auto;
    max-height: 70vh;
    display: block;
    background: #000000;
    outline: none;
}

.tv-video-player:focus-visible {
    outline: 4px solid #38bdf8 !important;
    outline-offset: -4px !important;
}

/* TV Player Keyboard & Remote Shortcuts Helper */
.tv-player-shortcuts-hint {
    margin-top: 10px;
    padding: 10px 14px;
    background: #0f172a;
    border: 1px solid #1e293b;
    border-radius: 6px;
    font-size: 13px;
    color: #94a3b8;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
}

.tv-shortcut-key {
    background: #1e293b;
    border: 1px solid #475569;
    border-radius: 4px;
    padding: 2px 7px;
    font-family: monospace;
    font-size: 12px;
    font-weight: 600;
    color: #38bdf8;
}

/* Playback Retry / Blocked Autoplay Overlay */
.tv-playback-retry-overlay {
    display: none;
    position: absolute;
    inset: 0;
    background: rgba(11, 15, 25, 0.92);
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 24px;
    text-align: center;
    z-index: 20;
}

.tv-retry-btn {
    background: #2563eb;
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    padding: 12px 28px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    margin-top: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 48px;
    transition: background 0.15s ease;
}

.tv-retry-btn:hover,
.tv-retry-btn:focus-visible {
    background: #1d4ed8;
    outline: 3px solid #38bdf8 !important;
}

/* ==========================================================================
   5. Interactive Clip Drawer & Live Playing Indicator
   ========================================================================== */

.clip-list-container {
    margin-top: 24px;
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 8px;
    padding: 18px;
}

.clip-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.clip-list-title {
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    margin: 0;
}

.clip-item-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #0f172a;
    border: 1px solid #334155;
    border-radius: 6px;
    padding: 12px 16px;
    margin-bottom: 8px;
    color: #f8fafc;
    cursor: pointer;
    text-align: left;
    font-size: 14px;
    min-height: 48px;
    box-sizing: border-box;
    transition: all 0.15s ease;
}

.clip-item-btn:hover,
.clip-item-btn:focus-visible {
    background: #1e293b;
    border-color: #38bdf8 !important;
}

.clip-item-btn.clip-active {
    background: rgba(37, 99, 235, 0.22) !important;
    border-color: #60a5fa !important;
    box-shadow: inset 0 0 12px rgba(59, 130, 246, 0.35) !important;
}

.clip-active-badge {
    display: inline-block;
    background: #2563eb;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
    margin-right: 8px;
    letter-spacing: 0.3px;
}

.clip-timestamp-badge {
    color: #93c5fd;
    font-family: monospace;
    font-size: 12px;
    background: #1e3a6a;
    padding: 3px 8px;
    border-radius: 4px;
    margin-left: 10px;
}