/* =========================================
           VARIABLES Y CONFIGURACIÓN INICIAL (CSS)
           ========================================= */
        :root {
            --colorA-primary: #FFDD00;
            --colorA-primary-dark: #FFCC00;
            --colorA-primary-light: #FFEE00;
            --colorB-primary: #0F265C;
            --colorB-primary-dark: #10133F;
            --colorB-primary-light: #033572;
            --color-secondary: #2d2d38;
            --color-secondary-dark: #475569;
            --color-secondary-light: #f2f2f2;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-error: #ef4444;
            --color-info: #3b82f6;
            --color-bg-primary: #f0f0f0;
            --color-bg-secondary: #bbb8c4;
            --color-bg-dark: #2d2d38;
            --color-bg-overlay: rgba(0, 0, 0, 0.5);
            --color-text-primary: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-muted: #94a3b8;
            --color-text-inverse: #ffffff;
            --color-text-light: #f0f0f0;
            --color-input-bg: #eeeeee;
            --color-secondary-button: #e2e2e2;
        }

        /* Declaración de fuentes (Debes asegurarte de tener la carpeta 'fonts' en tu directorio raíz) */
        @font-face {
            font-family: 'slab_regularBP';
            src: url('sources/fonts/PichinchaSlab-Regular.otf') format('opentype');
            font-weight: normal;
            font-style: normal;
        }
        @font-face {
            font-family: 'regularBP';
            src: url('sources/fonts/PichinchaSans-Regular.otf') format('opentype');
            font-weight: normal;
            font-style: normal;
        }
        @font-face {
            font-family: 'regular_italicBP';
            src: url('sources/fonts/PichinchaSans-RegularItalic.otf') format('opentype');
            font-weight: normal;
            font-style: normal;
        }
        @font-face {
            font-family: 'boldBP';
            src: url('sources/fonts/PichinchaSans-Bold.otf') format('opentype');
            font-weight: normal;
            font-style: normal;
        }
        @font-face {
            font-family: 'slab_boldBP';
            src: url('sources/fonts/PichinchaSlab-Bold.otf') format('opentype');
            font-weight: normal;
            font-style: normal;
        }

        @font-face {
                font-family: 'preloSemibold';
                src: url('sources/fonts/') format('opentype');
                font-weight: normal;
            font-style: normal;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: 'regularBP', sans-serif;
        }

        body {
            background-color: var(--color-secondary-light);
            display: grid;
            grid-template-rows: auto 1fr;
            align-items: center;
            justify-items: center;
            padding: 0 4%;
            line-height: inherit;
            overflow: hidden;
            height: 100dvh;
        }

        h1, h2, h3, h4, .bold {
            font-family: 'boldBP', sans-serif;
            color: var(--colorB-primary);
        }

        /* =========================================
           COMPONENTES COMUNES
           ========================================= */

        section.main{
            box-shadow: 0 9px 25px rgba(0, 0, 0, 0.2);
            background-color: rgb(249 249 249 / var(--tw-bg-opacity, 1));
            border-radius: 0.5rem;
            overflow: hidden;
            max-width: 26rem;
            width: 100%;
            box-sizing: border-box;
            max-height: 440px;
        }
        
        .header {
            background-color: var(--color-bg-primary);
            padding: 1rem 2rem;
            display: none; /* Se controla por JS */
            justify-content: flex-start;
            align-items: center;
            height: 60px;
            width: 100%;
            box-shadow: 0 5px 16px rgba(0, 16, 59, 0.4);
            grid-row: 1;
            grid-column: 1;
            z-index: 20;
        }
        .header img {
            height: 100%;
        }

        .logo-placeholder {
            color: var(--color-text-inverse);
            font-family: 'boldBP', sans-serif;
            font-size: 1.5rem;
            letter-spacing: 1px;
        }

        .screen {
            display: none;
            grid-row: 2;
            grid-column: 1;
            padding: 2% 4%;
            max-width: 600px;
            margin: 0 auto;
            width: 100%;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .screen.active {
            display: flex;
            height: calc(100dvh - 60px);
            /* padding: 0 8%; */
        }

        .btn {
            background-color: var(--colorA-primary);
            color: var(--colorB-primary-dark);
            border: none;
            padding: 3%;
            border-radius: 4px;
            font-size: smaller;
            font-family: "Work Sans", sans-serif;
            cursor: pointer;
            margin-top: 3%;
            width: 100%;
            max-width: 300px;
            transition: background-color 0.3s;
            text-transform: uppercase;
            /* letter-spacing: 0.1em; */
            font-weight: 600;
            height: 48px;
        }

        .btn:hover {
            background-color: var(--colorA-primary-dark);
        }

        .btn-secondary {
            background-color: var(--color-secondary-button);
            color: var(--color-text-primary);
        }

        .btn-secondary:hover {
            background-color: #a09da8;
        }

        .input-group {
            width: 100%;
            /* max-width: 300px; */
            margin-bottom: 12%;
            text-align: left;
        }

        .input-group input {
            width: 100%;
            padding: 5%;
            border: none;
            background-color: transparent;
            font-size: 1rem;
            transition-duration: 200ms;
            color: var(--color-text-primary);
            
        }

        .input-group input:focus {
            outline: none;
            border-color: var(--colorB-primary);
        }

        label {
            text-transform: uppercase;
            font-size: 0.75rem;
            line-height: 1rem;
            color: var(--color-secondary-dark);
            letter-spacing: 0.1em;
        }

        .error-message {
            color: var(--color-error);
            font-size: 0.85rem;
            margin-top: 0.25rem;
            display: none;
        }
        .relative{
            background-color: var(--color-input-bg);
            display: flex;
            align-items: center;
            padding: 0 4%;
            border-radius: 8px;
            margin: 2% 0;
        }
        
        .relative.focus {
            background-color: var(--color-text-inverse);
            outline: 2px solid var(--colorA-primary);
            box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
        }

        .relative > img {
            width: 1rem;
            height: 1rem;
        }

        .ratio-1-1 {
            height: 48%;
            max-width: 400px;
            aspect-ratio: 1 / 1;
            background-color: var(--color-bg-secondary);
            border-radius: 8px;
            overflow: hidden;
            position: relative;
            margin: 4% 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* =========================================
           ESTILOS ESPECÍFICOS POR PANTALLA
           ========================================= */
        /* Pantalla 1: Login */
        .container-logo {
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-bottom: 14%;
            gap: 1%;
        }

        .container-logo h1 {
            font-size: 1.35rem;
            line-height: 2rem;
            color: var(--colorB-primary);
            /* margin-bottom: 0.5rem; */
        }
        .container-logo p {
            font-size: 0.875rem;
            line-height: 1.25rem;
            color: var(--color-secondary-dark);
        }

        #screen-1 .logo-placeholder {
            color: var(--colorB-primary);
            font-size: 3rem;
            margin-bottom: 16%;
            height: 35px;
        }

        .logo-placeholder img {
            width: 100%;
            /* height: auto; */
            height: 100%;
        }

        p{
            color: var(--color-text-secondary)
        }

        /* Pantalla 2: Decisión */
        .rounded-img-placeholder {
            /* width: 90%; */
            height: 36%;
            border-radius: 8px;
            background-color: var(--color-secondary-light);
            margin: 6% 0;
            object-fit: cover;
            /* border: 4px solid var(--colorB-primary); */
            aspect-ratio: 1 / 1;
        }

        #screen-2 h2 {
            font-size: xx-large;
            line-height: 1;
            color: var(--colorB-primary);
            margin-bottom: 3rem;
        }

        #screen-2 span{
            color: var(--colorB-primary);
            font-weight: bold;
        }

        /* Pantalla 3A: Cámara */
        #video-element {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Pantalla 3C: Cargar Foto */
        .upload-area {
            border: 2px dashed var(--color-text-muted);
            border-radius: 8px;
            padding: 2rem;
            margin: 1.5rem 0;
            background-color: var(--color-secondary-light);
            cursor: pointer;
            width: 100%;
            max-width: 400px;
            margin-bottom: 4rem;
        }

        .hidden-input {
            display: none;
        }

        /* Pantalla 4: Selección de Marco */
        .preview-container {
            position: relative;
        }

        .preview-image, .frame-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: contain;
            pointer-events: none;
        }
        
        .preview-image {
            object-fit: cover; /* Para la foto de fondo */
        }

        .frames-grid {
            display: flex;
            gap: 1rem;
            margin: 2% 0;
            justify-content: center;
            width: 90%;
            max-width: 400px;
        }

        .frame-option {
            flex: 1;
            aspect-ratio: 1 / 1;
            border: 2px solid transparent;
            border-radius: 8px;
            cursor: pointer;
            position: relative;
            background-color: var(--color-secondary-light);
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .frame-option img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        .frame-option.selected {
            border-color: var(--colorB-primary);
            background-color: #e6f8f1;
            opacity: 0.8;
            box-shadow: 0 4px 10px rgba(4, 63, 151, 0.3);
        }

        .frame-option .check-icon {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 24px;
            height: 24px;
            background-color: var(--color-success);
            color: white;
            border-radius: 50%;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            z-index: 10;
        }

        .frame-option.selected .check-icon {
            display: flex;
        }

        .align-left {
            text-align: left;
            width: 100%;
            max-width: 400px;
        }

        /* Pantalla 6: Final */
        .success-icon {
            width: 80px;
            height: 80px;
            background-color: var(--color-success);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            /* margin-bottom: 1rem; */
        }
        
        .success-icon svg {
            width: 40px;
            height: 40px;
            fill: none;
            stroke: white;
            stroke-width: 4;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .mt-large {
            margin-top: 1.5rem;
        }

        #screen-6 {
           gap: 1rem;
        }

        #screen-6 div:nth-of-type(2) {
            display: flex;
            flex-direction: column;
            gap: 10%;
            margin: 10% 0;;
        }

        #screen-6 div:last-of-type p {
            font-size: 0.9rem;
        }

/* =========================================
    MEDIA QUERIES (RESPONSIVE DESIGN)
    ========================================= */ 

@media (min-width: 700px) {
    .final {
        padding: 1rem;
    }

}

@media (min-width: 1000px) {
    .screen {
        padding: 2%;
    }
}

@media (max-width: 450px) {
    #screen-2 h2 {
        font-size: 160%;
    }
    #screen-2, #screen-5 {
        padding: 2% 7%;
    }

    #screen-2 p:last-of-type {
        margin-bottom: 2%;
    }
}

/* =========================================
   ANIMACIONES DE TRANSICIÓN
   ========================================= */

/* Keyframes Horizontales */
@keyframes slideOutLeft { to { transform: translateX(-50px); opacity: 0; } }
@keyframes slideInRight { from { transform: translateX(50px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideOutRight { to { transform: translateX(50px); opacity: 0; } }
@keyframes slideInLeft { from { transform: translateX(-50px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

.anim-exit-left {
    animation: slideOutLeft 0.5s ease forwards;
    pointer-events: none;
}
.anim-enter-right {
    animation: slideInRight 0.7s ease forwards;
}
.anim-exit-right {
    animation: slideOutRight 0.5s ease forwards;
    pointer-events: none;
}
.anim-enter-left {
    animation: slideInLeft 0.7s ease forwards;
}