/* Material Design - Android Native App Style */
/* Variables de Material Design 3 */
:root {
    /* Colores primarios Material Design 3 */
    --md-primary: #6750A4;
    --md-primary-container: #EADDFF;
    --md-on-primary: #FFFFFF;
    --md-on-primary-container: #21005D;
    
    /* Colores secundarios */
    --md-secondary: #625B71;
    --md-secondary-container: #E8DEF8;
    --md-on-secondary: #FFFFFF;
    --md-on-secondary-container: #1D192B;
    
    /* Colores de superficie */
    --md-surface: #FFFBFE;
    --md-surface-variant: #E7E0EC;
    --md-on-surface: #1C1B1F;
    --md-on-surface-variant: #49454F;
    
    /* Colores de fondo */
    --md-background: #FFFBFE;
    --md-on-background: #1C1B1F;
    
    /* Colores de error */
    --md-error: #BA1A1A;
    --md-error-container: #FFDAD6;
    --md-on-error: #FFFFFF;
    --md-on-error-container: #410002;
    
    /* Colores de éxito */
    --md-success: #006C4C;
    --md-success-container: #89F8D0;
    --md-on-success: #FFFFFF;
    --md-on-success-container: #002114;
    
    /* Colores de advertencia */
    --md-warning: #B95000;
    --md-warning-container: #FFDBCF;
    --md-on-warning: #FFFFFF;
    --md-on-warning-container: #3E1400;
    
    /* Elevación y sombras */
    --md-elevation-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.30);
    --md-elevation-2: 0px 2px 6px 2px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.30);
    --md-elevation-3: 0px 4px 8px 3px rgba(0, 0, 0, 0.15), 0px 1px 3px 0px rgba(0, 0, 0, 0.30);
    --md-elevation-4: 0px 6px 10px 4px rgba(0, 0, 0, 0.15), 0px 2px 4px 0px rgba(0, 0, 0, 0.30);
    --md-elevation-5: 0px 8px 12px 6px rgba(0, 0, 0, 0.15), 0px 4px 6px 0px rgba(0, 0, 0, 0.30);
    
    /* Espaciado Material Design */
    --md-spacing-xs: 4px;
    --md-spacing-sm: 8px;
    --md-spacing-md: 16px;
    --md-spacing-lg: 24px;
    --md-spacing-xl: 32px;
    --md-spacing-xxl: 48px;
    
    /* Bordes redondeados */
    --md-radius-xs: 4px;
    --md-radius-sm: 8px;
    --md-radius-md: 12px;
    --md-radius-lg: 16px;
    --md-radius-xl: 28px;
    --md-radius-full: 50%;
    
    /* Tipografía Material Design */
    --md-font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --md-font-size-display-large: 57px;
    --md-font-size-display-medium: 45px;
    --md-font-size-display-small: 36px;
    --md-font-size-headline-large: 32px;
    --md-font-size-headline-medium: 28px;
    --md-font-size-headline-small: 24px;
    --md-font-size-title-large: 22px;
    --md-font-size-title-medium: 16px;
    --md-font-size-title-small: 14px;
    --md-font-size-body-large: 16px;
    --md-font-size-body-medium: 14px;
    --md-font-size-body-small: 12px;
    --md-font-size-label-large: 14px;
    --md-font-size-label-medium: 12px;
    --md-font-size-label-small: 11px;
}

/* Reset y configuración base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--md-font-family);
    background: var(--md-background);
    color: var(--md-on-background);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Contenedor principal con estilo Android */
.verification-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--md-spacing-lg);
    background: linear-gradient(135deg, var(--md-primary), var(--md-secondary));
    position: relative;
}

/* Efecto de fondo Android */
.verification-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(103, 80, 164, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(98, 91, 113, 0.3) 0%, transparent 50%);
    pointer-events: none;
}

/* Tarjeta principal con elevación Material Design */
.verification-card {
    background: var(--md-surface);
    border-radius: var(--md-radius-lg);
    padding: var(--md-spacing-xl);
    box-shadow: var(--md-elevation-4);
    max-width: 400px;
    width: 100%;
    text-align: center;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Título principal */
.verification-title {
    color: var(--md-on-surface);
    font-size: var(--md-font-size-headline-medium);
    font-weight: 400;
    margin-bottom: var(--md-spacing-lg);
    letter-spacing: 0.25px;
}

/* Formulario de evento */
.event-form {
    margin-bottom: var(--md-spacing-xl);
}

.event-form p {
    color: var(--md-on-surface-variant);
    font-size: var(--md-font-size-body-medium);
    margin-bottom: var(--md-spacing-lg);
    line-height: 1.6;
}

/* Grupo de inputs del código */
.event-input-group {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--md-spacing-sm);
    margin-bottom: var(--md-spacing-lg);
}

/* Inputs individuales con estilo Material Design */
.event-input {
    width: 56px;
    height: 56px;
    border: 2px solid var(--md-on-surface-variant);
    border-radius: var(--md-radius-sm);
    text-align: center;
    font-size: var(--md-font-size-headline-small);
    font-weight: 500;
    color: var(--md-on-surface);
    background: var(--md-surface);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: var(--md-font-family);
    letter-spacing: 0.5px;
}

.event-input:focus {
    outline: none;
    border-color: var(--md-primary);
    box-shadow: 0 0 0 4px rgba(103, 80, 164, 0.12);
    transform: translateY(-2px);
}

.event-input:valid {
    border-color: var(--md-primary);
}

/* Separador del código */
.event-separator {
    font-size: var(--md-font-size-headline-small);
    font-weight: 500;
    color: var(--md-on-surface-variant);
    margin: 0 var(--md-spacing-sm);
    user-select: none;
}

/* Botón principal Material Design */
.submit-btn {
    background: var(--md-primary);
    color: var(--md-on-primary);
    border: none;
    padding: var(--md-spacing-md) var(--md-spacing-xl);
    border-radius: var(--md-radius-xl);
    font-size: var(--md-font-size-label-large);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    font-family: var(--md-font-family);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.submit-btn:hover::before {
    left: 100%;
}

.submit-btn:hover {
    background: var(--md-primary);
    transform: translateY(-2px);
    box-shadow: var(--md-elevation-3);
}

.submit-btn:active {
    transform: translateY(0);
    box-shadow: var(--md-elevation-1);
}

.submit-btn:disabled {
    background: var(--md-on-surface-variant);
    color: var(--md-on-surface);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Sección de permisos */
.permissions-section {
    display: none;
    margin-top: var(--md-spacing-xl);
}

.permissions-title {
    color: var(--md-on-surface);
    font-size: var(--md-font-size-title-large);
    font-weight: 400;
    margin-bottom: var(--md-spacing-lg);
    letter-spacing: 0.15px;
}

/* Item de permiso */
.permission-item {
    display: none;
    align-items: center;
    justify-content: space-between;
    padding: var(--md-spacing-md);
    margin-bottom: var(--md-spacing-md);
    background: var(--md-surface-variant);
    border-radius: var(--md-radius-md);
    border-left: 4px solid var(--md-primary);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--md-elevation-1);
}

.permission-item.active {
    display: flex;
    animation: slideInUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.permission-item.completed {
    display: none;
}

.permission-item:hover {
    box-shadow: var(--md-elevation-2);
    transform: translateY(-1px);
}

/* Información del permiso */
.permission-info {
    flex: 1;
    text-align: left;
}

.permission-title {
    font-weight: 500;
    color: var(--md-on-surface);
    margin-bottom: var(--md-spacing-xs);
    font-size: var(--md-font-size-title-medium);
}

.permission-description {
    font-size: var(--md-font-size-body-small);
    color: var(--md-on-surface-variant);
    line-height: 1.4;
}

/* Estado del permiso */
.permission-status {
    padding: var(--md-spacing-xs) var(--md-spacing-sm);
    border-radius: var(--md-radius-sm);
    font-size: var(--md-font-size-label-small);
    font-weight: 500;
    min-width: 80px;
    text-align: center;
    margin: 0 var(--md-spacing-sm);
}

.status-pending {
    background: var(--md-warning-container);
    color: var(--md-on-warning-container);
}

.status-granted {
    background: var(--md-success-container);
    color: var(--md-on-success-container);
}

.status-denied {
    background: var(--md-error-container);
    color: var(--md-on-error-container);
}

/* Botón de permiso */
.permission-btn {
    background: var(--md-secondary);
    color: var(--md-on-secondary);
    border: none;
    padding: var(--md-spacing-sm) var(--md-spacing-md);
    border-radius: var(--md-radius-xl);
    font-size: var(--md-font-size-label-medium);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: var(--md-font-family);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.permission-btn:hover {
    background: var(--md-secondary);
    transform: translateY(-1px);
    box-shadow: var(--md-elevation-2);
}

.permission-btn:active {
    transform: translateY(0);
    box-shadow: var(--md-elevation-1);
}

.permission-btn:disabled {
    background: var(--md-on-surface-variant);
    color: var(--md-on-surface);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Botón de continuar */
.continue-btn {
    background: var(--md-primary);
    color: var(--md-on-primary);
    border: none;
    padding: var(--md-spacing-md) var(--md-spacing-xl);
    border-radius: var(--md-radius-xl);
    font-size: var(--md-font-size-label-large);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    margin-top: var(--md-spacing-lg);
    display: none;
    font-family: var(--md-font-family);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.continue-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.continue-btn:hover::before {
    left: 100%;
}

.continue-btn:hover {
    background: var(--md-primary);
    transform: translateY(-2px);
    box-shadow: var(--md-elevation-3);
}

.continue-btn:active {
    transform: translateY(0);
    box-shadow: var(--md-elevation-1);
}

/* Mensajes de estado */
.error-message, .success-message {
    padding: var(--md-spacing-md);
    border-radius: var(--md-radius-md);
    margin-bottom: var(--md-spacing-md);
    display: none;
    font-size: var(--md-font-size-body-medium);
    font-weight: 500;
    animation: slideInDown 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.error-message {
    background: var(--md-error-container);
    color: var(--md-on-error-container);
    border-left: 4px solid var(--md-error);
}

.success-message {
    background: var(--md-success-container);
    color: var(--md-on-success-container);
    border-left: 4px solid var(--md-success);
}

.loading-message {
    background: var(--md-warning-container);
    color: var(--md-on-warning-container);
    border-left: 4px solid var(--md-warning);
}

.redirecting-message {
    background: var(--md-success-container);
    color: var(--md-on-success-container);
    border-left: 4px solid var(--md-success);
    position: relative;
}

.redirecting-message::after {
    content: '';
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--md-success);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Animaciones Material Design */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Responsive Design para Android */
@media (max-width: 480px) {
    .verification-card {
        padding: var(--md-spacing-lg);
        margin: var(--md-spacing-md);
        border-radius: var(--md-radius-md);
    }

    .event-input {
        width: 48px;
        height: 48px;
        font-size: var(--md-font-size-title-large);
    }

    .permission-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--md-spacing-sm);
        padding: var(--md-spacing-lg);
    }

    .permission-status {
        align-self: flex-end;
    }

    .permission-btn {
        align-self: flex-end;
    }

    .verification-title {
        font-size: var(--md-font-size-headline-small);
    }
}

/* Soporte para modo oscuro */
@media (prefers-color-scheme: dark) {
    :root {
        --md-background: #1C1B1F;
        --md-on-background: #E6E1E5;
        --md-surface: #1C1B1F;
        --md-surface-variant: #49454F;
        --md-on-surface: #E6E1E5;
        --md-on-surface-variant: #CAC4D0;
    }
}

/* Soporte para preferencias de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Estilos para dispositivos táctiles */
@media (hover: none) and (pointer: coarse) {
    .event-input {
        min-height: 48px;
        font-size: var(--md-font-size-title-large);
    }
    
    .submit-btn, .permission-btn, .continue-btn {
        min-height: 48px;
        padding: var(--md-spacing-md) var(--md-spacing-lg);
    }
}