/* ==========================================================================
   PORTAL TV EN VIVO - ESTILOS PRINCIPALES (TV & PC OPTIMIZADO)
   Diseño cinemático prémium, Glassmorphism, Alto Contraste para Smart TV
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@500;700&display=swap');

:root {
    --bg-base: #070a13;
    --bg-surface: rgba(16, 22, 38, 0.85);
    --bg-surface-elevated: rgba(23, 32, 56, 0.95);
    --bg-glass: rgba(255, 255, 255, 0.04);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(0, 242, 254, 0.4);

    --accent-primary: #00f2fe;
    --accent-secondary: #4facfe;
    --accent-glow: rgba(0, 242, 254, 0.28);
    --accent-live: #ff2a5f;
    --accent-live-glow: rgba(255, 42, 95, 0.4);
    --accent-success: #10b981;
    --accent-warning: #f59e0b;

    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;

    --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-code: 'JetBrains Mono', monospace;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-full: 9999px;

    --transition-smooth: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-snappy: all 0.15s ease-out;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    height: 100%;
    background-color: var(--bg-base);
    color: var(--text-main);
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Fondo ambiental dinámico cinemático */
body {
    position: relative;
    background-image: 
        radial-gradient(circle at 15% 20%, rgba(79, 172, 254, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 85% 80%, rgba(255, 42, 95, 0.08) 0%, transparent 40%),
        linear-gradient(180deg, #070a13 0%, #0c1220 100%);
    background-attachment: fixed;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ==========================================================================
   PANTALLA DE ACCESO (PIN / CÓDIGO)
   ========================================================================== */

.auth-viewport {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    position: relative;
    z-index: 2;
}

.brand-header {
    text-align: center;
    margin-bottom: 28px;
    animation: fadeInDown 0.6s ease-out;
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(0, 242, 254, 0.1);
    border: 1px solid rgba(0, 242, 254, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: var(--accent-primary);
    margin-bottom: 12px;
    box-shadow: 0 0 20px var(--accent-glow);
}

.brand-badge .pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-live);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-live);
    animation: livePulse 1.8s infinite;
}

.brand-title {
    font-size: clamp(1.8rem, 3.5vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.brand-subtitle {
    color: var(--text-muted);
    font-size: clamp(0.95rem, 1.6vw, 1.15rem);
    max-width: 480px;
    margin: 0 auto;
}

/* Tarjeta Principal de Identificación */
.auth-card {
    background: var(--bg-surface);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 0 1px rgba(255, 255, 255, 0.15);
    padding: clamp(24px, 4vw, 40px);
    width: 100%;
    max-width: 460px;
    text-align: center;
    animation: scaleIn 0.5s ease-out;
}

.card-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.8px;
    text-transform: uppercase;
    margin-bottom: 18px;
    display: block;
}

/* Contenedor de Entrada de Código */
.code-input-wrapper {
    margin-bottom: 20px;
    position: relative;
}

.code-field {
    width: 100%;
    background: rgba(8, 12, 22, 0.75);
    border: 2px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    font-family: var(--font-code);
    font-size: clamp(1.4rem, 3vw, 1.85rem);
    font-weight: 700;
    letter-spacing: 6px;
    text-align: center;
    color: #ffffff;
    text-transform: uppercase;
    transition: var(--transition-smooth);
    outline: none;
}

.code-field::placeholder {
    color: var(--text-dim);
    letter-spacing: 3px;
    font-size: 1.1rem;
}

.code-field:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 25px var(--accent-glow), inset 0 0 10px rgba(0, 242, 254, 0.1);
    background: rgba(12, 18, 32, 0.9);
}

/* Mensajes de Feedback */
.auth-message {
    min-height: 24px;
    margin-bottom: 18px;
    font-size: 0.92rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.auth-message.error {
    color: #f87171;
    animation: shake 0.4s ease-in-out;
}

.auth-message.success {
    color: var(--accent-success);
}

.auth-message.loading {
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* Botón de Validación Principal */
.btn-submit {
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent-primary) 100%);
    border: none;
    border-radius: var(--radius-md);
    color: #050b14;
    font-family: var(--font-main);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition-smooth);
    box-shadow: 0 8px 24px rgba(0, 242, 254, 0.35);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(0, 242, 254, 0.55);
    filter: brightness(1.08);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-submit:focus-visible {
    outline: 3px solid #ffffff;
    outline-offset: 3px;
}

/* ==========================================================================
   TECLADO NUMÉRICO EN PANTALLA (OPTIMIZADO PARA CONTROL REMOTO SMART TV)
   ========================================================================== */

.tv-numpad {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-glass);
}

.numpad-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-dim);
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.numpad-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.numpad-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-family: var(--font-main);
    font-size: 1.25rem;
    font-weight: 600;
    padding: 12px 0;
    cursor: pointer;
    transition: var(--transition-snappy);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.numpad-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

.numpad-btn:active {
    transform: scale(0.96);
}

.numpad-btn:focus-visible {
    outline: none;
    border-color: var(--accent-primary);
    background: rgba(0, 242, 254, 0.18);
    box-shadow: 0 0 16px var(--accent-glow);
    color: #ffffff;
}

.numpad-btn.btn-action {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-muted);
}

.numpad-btn.btn-delete:hover {
    background: rgba(248, 113, 113, 0.15);
    border-color: rgba(248, 113, 113, 0.4);
    color: #f87171;
}

/* ==========================================================================
   PIE DE PÁGINA Y TIPS PARA SMART TV / PC
   ========================================================================== */

.auth-footer-tips {
    margin-top: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--text-dim);
    font-size: 0.82rem;
    flex-wrap: wrap;
    text-align: center;
}

.tip-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.tip-key {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    padding: 2px 6px;
    font-family: var(--font-code);
    font-size: 0.75rem;
    color: var(--text-main);
}

/* ==========================================================================
   ANIMACIONES
   ========================================================================== */

@keyframes livePulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.3);
        opacity: 0.6;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-8px); }
    40%, 80% { transform: translateX(8px); }
}

.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(0, 242, 254, 0.2);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   OPTIMIZACIONES PARA SMART TV (RESOLUCIÓN 1080p y 4K A DISTANCIA)
   ========================================================================== */

@media (min-width: 1400px) {
    body {
        font-size: 18px;
    }
    .auth-card {
        max-width: 520px;
        padding: 44px;
    }
    .code-field {
        padding: 18px 24px;
        font-size: 2.2rem;
    }
    .numpad-btn {
        padding: 16px 0;
        font-size: 1.4rem;
    }
}