/* ============================================================
   QueroServiço Academy - Core LMS & Minimalist Modern Style
   Author: M.Matias (wpp: +55 11 98801-5741)
   ============================================================ */

:root {
    --qs-bg: #0d1117;
    --qs-surface: #161b22;
    --qs-surface-hover: #1f242c;
    --qs-border: #30363d;
    --qs-accent: #2563eb;
    --qs-accent-hover: #1d4ed8;
    --qs-accent-light: rgba(37, 99, 235, 0.15);
    --qs-emerald: #10b981;
    --qs-text: #f0f6fc;
    --qs-muted: #8b949e;
    --qs-radius: 12px;
}

/* Player Unificado & Responsividade */
.qs-video-responsive {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: var(--qs-radius);
    background: #000;
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
    margin-bottom: 25px;
}
.qs-video-responsive iframe,
.qs-video-responsive video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Sistema Legado Player */
.qs-legacy-live-container {
    background: #000;
    border-radius: var(--qs-radius);
    overflow: hidden;
    margin-bottom: 25px;
    border: 1px solid var(--qs-border);
}
.qs-live-badge-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 18px;
    background: #111;
    border-bottom: 1px solid var(--qs-border);
    font-size: 13px;
    font-weight: 600;
}
.qs-live-pulse-dot {
    width: 10px;
    height: 10px;
    background: #ef4444;
    border-radius: 50%;
    box-shadow: 0 0 10px #ef4444;
    animation: qsPulse 1.5s infinite;
}
@keyframes qsPulse {
    0% { transform: scale(0.9); opacity: 0.8; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.8; }
}
.qs-live-status-text { color: #f87171; letter-spacing: 0.5px; }
.qs-live-channel-tag {
    margin-left: auto;
    background: #222;
    padding: 3px 8px;
    border-radius: 4px;
    color: var(--qs-muted);
    font-size: 11px;
}
.qs-player-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}
.qs-player-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.qs-player-overlay-controls {
    position: absolute;
    bottom: 15px;
    right: 15px;
    display: flex;
    gap: 8px;
    z-index: 10;
}
.qs-btn-ctrl {
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    backdrop-filter: blur(4px);
    transition: all 0.2s;
}
.qs-btn-ctrl:hover {
    background: var(--qs-accent);
    border-color: var(--qs-accent);
}

/* Chat Interativo em Tempo Real */
.qs-chat-widget {
    background: var(--qs-surface);
    border: 1px solid var(--qs-border);
    border-radius: var(--qs-radius);
    display: flex;
    flex-direction: column;
    height: 520px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.qs-chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    border-bottom: 1px solid var(--qs-border);
    background: rgba(255,255,255,0.02);
}
.qs-chat-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--qs-text);
}
.qs-chat-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--qs-emerald);
}
.qs-chat-online-badge {
    background: rgba(16, 185, 129, 0.15);
    color: var(--qs-emerald);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}
.qs-chat-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.qs-chat-msg {
    display: flex;
    gap: 10px;
    font-size: 13px;
    line-height: 1.4;
}
.qs-chat-msg-avatar img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--qs-border);
}
.qs-chat-msg-content {
    background: rgba(255,255,255,0.04);
    padding: 8px 12px;
    border-radius: 8px;
    max-width: 85%;
    border: 1px solid rgba(255,255,255,0.05);
}
.qs-chat-msg-author {
    font-weight: 600;
    color: #93c5fd;
    font-size: 12px;
    margin-bottom: 2px;
}
.qs-chat-msg-time {
    font-size: 10px;
    color: var(--qs-muted);
    margin-left: 6px;
}
.qs-chat-msg-text {
    color: var(--qs-text);
    word-break: break-word;
}
.qs-chat-footer {
    padding: 14px;
    border-top: 1px solid var(--qs-border);
    background: rgba(255,255,255,0.01);
}
.qs-chat-input-row {
    display: flex;
    gap: 8px;
}
.qs-chat-input-row input {
    flex: 1;
    background: #0d1117;
    border: 1px solid var(--qs-border);
    border-radius: 8px;
    padding: 10px 14px;
    color: #fff;
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s;
}
.qs-chat-input-row input:focus {
    border-color: var(--qs-accent);
}
.qs-chat-btn-send {
    background: var(--qs-accent);
    color: #fff;
    border: none;
    padding: 0 16px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}
.qs-chat-btn-send:hover {
    background: var(--qs-accent-hover);
}

/* Validador e Certificados */
.qs-validator-wrapper {
    max-width: 720px;
    margin: 40px auto;
    padding: 0 15px;
}
.qs-validator-card {
    background: var(--qs-surface);
    border: 1px solid var(--qs-border);
    border-radius: var(--qs-radius);
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 12px 36px rgba(0,0,0,0.3);
}
.qs-validator-icon svg {
    color: #3b82f6;
    margin-bottom: 15px;
}
.qs-validator-card h2 {
    color: var(--qs-text);
    font-size: 22px;
    margin-bottom: 12px;
}
.qs-validator-card p {
    color: var(--qs-muted);
    font-size: 14px;
    margin-bottom: 25px;
    line-height: 1.6;
}
.qs-validator-input-group {
    display: flex;
    gap: 10px;
    max-width: 520px;
    margin: 0 auto;
}
.qs-validator-input-group input {
    flex: 1;
    background: #0d1117;
    border: 1px solid var(--qs-border);
    border-radius: 8px;
    padding: 12px 16px;
    color: #fff;
    font-size: 14px;
    text-transform: uppercase;
    font-family: monospace;
    outline: none;
}
.qs-btn-verify {
    background: var(--qs-accent);
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}
.qs-btn-verify:hover {
    background: var(--qs-accent-hover);
}

.qs-cert-valid {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 10px;
    padding: 24px;
    text-align: left;
    margin-top: 20px;
}
.qs-badge-valid {
    display: inline-block;
    background: var(--qs-emerald);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}
.qs-cert-invalid {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 10px;
    padding: 24px;
    text-align: left;
    margin-top: 20px;
}
.qs-badge-invalid {
    display: inline-block;
    background: #ef4444;
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}
.qs-cert-details .qs-row {
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: 13px;
    display: flex;
    justify-content: space-between;
}
.qs-cert-details .lbl { color: var(--qs-muted); }
.qs-cert-details .val { color: var(--qs-text); }
.qs-btn-download-cert {
    display: inline-block;
    background: #10b981;
    color: #fff;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 13px;
    transition: opacity 0.2s;
}
.qs-btn-download-cert:hover { opacity: 0.9; }