/* ==========================================================================
           VARIABLES & RESET
           ========================================================================== */
        :root {
            --primary: #0f172a;
            --primary-hover: #1e293b;
            --secondary: #64748b;
            --bg: #f8fafc;
            --card-bg: #ffffff;
            --text-main: #0f172a;
            --text-muted: #64748b;
            --success: #059669;
            --error: #e11d48;
            --border: #cbd5e1;
            --radius: 6px;
            --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
        }

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

        html, body {
            max-width: 100%;
            overflow-x: hidden;
        }

        body {
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.5;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ==========================================================================
           TYPOGRAPHY & UTILITIES
           ========================================================================== */
        h1, h2, h3, h4 { color: var(--text-main); font-weight: 600; }
        p { color: var(--text-muted); }
        
        .hidden { display: none !important; }
        .flex { display: flex; }
        .flex-col { display: flex; flex-direction: column; }
        .flex-wrap { flex-wrap: wrap; }
        .items-center { align-items: center; }
        .justify-between { justify-content: space-between; }
        .justify-center { justify-content: center; }
        .gap-2 { gap: 0.5rem; }
        .gap-4 { gap: 1rem; }
        .mt-2 { margin-top: 0.5rem; }
        .mt-4 { margin-top: 1rem; }
        .mb-2 { margin-bottom: 0.5rem; }
        .mb-4 { margin-bottom: 1rem; }
        .mb-6 { margin-bottom: 1.5rem; }
        .w-full { width: 100%; }
        .flex-1 { flex: 1; }
        .text-center { text-align: center; }
        .text-sm { font-size: 0.875rem; }
        .font-bold { font-weight: bold; }
        .text-success { color: var(--success); }
        .text-error { color: var(--error); }
        .text-primary { color: var(--primary); }

        /* ==========================================================================
           LAYOUT COMPONENTS
           ========================================================================== */
        header {
            background-color: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 10;
            box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
            flex-wrap: wrap; /* En móvil permite salto de línea para evitar desborde */
            gap: 0.5rem;
            overflow-x: hidden;
        }
        header::-webkit-scrollbar {
            display: none; /* Ocultar scrollbar en el header */
        }
        @media (min-width: 768px) {
            header {
                padding: 1rem 2rem;
                gap: 1rem;
                flex-wrap: nowrap;
            }
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }
        @media (min-width: 768px) {
            .grid-2 {
                grid-template-columns: 1fr 1fr;
            }
        }

        .grid-3 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 768px) {
            .grid-3 {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .grid-4 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }
        @media (min-width: 768px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        main {
            flex: 1;
            padding: 1rem;
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
        }
        @media (min-width: 768px) {
            main { padding: 2rem; }
        }

        .card {
            background-color: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 1.25rem;
            border: 1px solid var(--border);
        }
        @media (min-width: 768px) {
            .card { padding: 2rem; }
        }

        /* Encabezado del panel: en móvil se apila y el botón ocupa el ancho completo */
        .dashboard-header {
            display: flex;
            flex-direction: column;
            align-items: stretch;
            gap: 0.75rem;
        }
        .dashboard-header-actions {
            display: flex;
            flex-direction: column;
            align-items: stretch;
            gap: 0.35rem;
        }
        .dashboard-header h2 {
            margin-bottom: 0.25rem;
        }
        .dashboard-header p {
            margin-top: 0.25rem;
        }
        .dashboard-header-btn {
            width: 100%;
        }
        .identity-card-actions {
            display: flex;
            flex-wrap: nowrap;
            gap: 0.5rem;
        }
        /* Acciones del bloque de video: evita desbordes y cortes en móvil. */
        .video-actions {
            width: 100%;
        }
        .video-actions .btn {
            flex: 1 1 calc(50% - 0.5rem);
            min-width: 0;
            white-space: nowrap;
            text-align: center;
            line-height: 1.2;
            padding-left: 0.7rem;
            padding-right: 0.7rem;
            min-height: 38px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.85rem;
        }
        #video-status {
            flex: 1 1 100%;
            min-width: 0;
            overflow-wrap: anywhere;
            word-break: break-word;
        }
        .identity-card-actions .btn {
            flex: 1 1 0;
            min-width: 0;
            padding: 0.5rem;
            font-size: 0.875rem;
            padding-left: 0.75rem;
            padding-right: 0.75rem;
        }
        @media (min-width: 768px) {
            .dashboard-header {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                gap: 1rem;
            }
            .dashboard-header-actions {
                align-items: flex-end;
            }
            .dashboard-header-btn {
                width: auto;
                white-space: nowrap;
            }
            .identity-card-actions .btn {
                flex: 0 0 auto;
                min-width: auto;
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
            .video-actions .btn {
                flex: 0 0 auto;
                white-space: nowrap;
            }
            #video-status {
                flex: 0 0 auto;
            }
        }

        /* ==========================================================================
           FORMS & INPUTS
           ========================================================================== */
        .form-group {
            margin-bottom: 1.25rem;
        }

        label {
            display: block;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.35rem;
            color: var(--secondary);
        }

        input[type="text"],
        input[type="email"],
        input[type="password"],
        input[type="tel"],
        input[type="number"],
        select {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            font-size: 0.95rem;
            transition: all 0.2s;
            background-color: #f8fafc;
            color: var(--text-main);
        }

        input:focus, select:focus {
            outline: none;
            border-color: #3b82f6;
            background-color: #ffffff;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
        }

        .error-msg {
            color: var(--error);
            font-size: 0.75rem;
            margin-top: 0.25rem;
            display: none;
        }

        input.invalid {
            border-color: var(--error);
        }

        /* ==========================================================================
           BUTTONS
           ========================================================================== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius);
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            border: none;
            font-size: 1rem;
            gap: 0.5rem;
            white-space: nowrap; /* EVITAR QUE EL TEXTO DEL BOTÓN SE ROMPA EN DOS LÍNEAS */
        }

        .btn:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }

        .btn-primary {
            background-color: var(--primary);
            color: white;
        }

        .btn-primary:hover:not(:disabled) { background-color: var(--primary-hover); }

        .btn-outline {
            background-color: transparent;
            border: 1px solid var(--border);
            color: var(--text-main);
        }

        .btn-outline:hover:not(:disabled) { background-color: var(--bg); }

        .btn-success {
            background-color: var(--success);
            color: white;
        }
        .btn-success:hover:not(:disabled) { filter: brightness(0.95); }

        .btn-error {
            background-color: transparent;
            border: 1px solid var(--error);
            color: var(--error);
        }
        .btn-error:hover:not(:disabled) { background-color: var(--error); color: white; }

        .btn-text {
            background: none;
            color: var(--primary);
            padding: 0;
        }
        .btn-text:hover { text-decoration: underline; }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--secondary);
            font-size: 0.875rem;
            font-weight: 600;
            padding: 0.5rem 0.75rem;
            border-radius: var(--radius);
            background: transparent;
            border: 1px solid transparent;
            transition: all 0.2s;
            margin-bottom: 1.5rem;
            cursor: pointer;
            margin-left: -0.75rem; /* Alinea visualmente el texto con el contenedor de abajo */
        }
        .btn-back:hover {
            background-color: #f1f5f9;
            color: var(--primary);
        }

        /* ==========================================================================
           BADGES & DASHBOARD CARDS
           ========================================================================== */
        .badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: bold;
            text-transform: uppercase;
        }
        .badge-draft { background-color: #f1f5f9; color: #475569; }
        .badge-pending { background-color: #fef08a; color: #854d0e; }
        .badge-success { background-color: #d1fae5; color: #065f46; }

        .app-card {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem;
            background: var(--card-bg);
            transition: box-shadow 0.2s, transform 0.2s;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .app-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        /* ==========================================================================
           LANDING PAGE
           ========================================================================== */
        .feature-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 1rem;
        }
        .feature-icon-wrapper {
            background: rgba(5, 150, 105, 0.1);
            color: var(--success);
            padding: 1rem;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            width: 64px;
            height: 64px;
        }
        .feature-icon-wrapper svg {
            width: 32px;
            height: 32px;
        }
        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background-color: var(--card-bg);
            border: 1px solid var(--border);
            padding: 0.5rem 1rem;
            border-radius: 999px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-main);
            box-shadow: var(--shadow);
            margin: 2rem auto;
        }

        /* ==========================================================================
           FAQ ACCORDION
           ========================================================================== */
        .faq-container {
            margin-top: 3rem;
            border-top: 1px solid var(--border);
            padding-top: 2rem;
        }
        .faq-container h3 {
            font-size: 1.25rem;
            margin-bottom: 1rem;
            color: var(--primary);
            letter-spacing: -0.01em;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            padding: 1.25rem 0;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
            transition: color 0.2s;
        }
        .faq-question::-webkit-details-marker {
            display: none; /* Oculta la flecha por defecto en Safari/Chrome */
        }
        .faq-question:hover {
            color: #3b82f6;
        }
        .faq-icon {
            transition: transform 0.3s ease;
            color: var(--secondary);
            flex-shrink: 0;
            margin-left: 1rem;
        }
        details[open] .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding-bottom: 1.25rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            animation: fadeIn 0.3s ease-in-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-5px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ==========================================================================
           TABS (Auth)
           ========================================================================== */
        .tabs {
            display: flex;
            border-bottom: 1px solid var(--border);
            margin-bottom: 1.5rem;
        }
        .tab {
            flex: 1;
            text-align: center;
            padding: 0.75rem;
            cursor: pointer;
            border-bottom: 2px solid transparent;
            color: var(--text-muted);
            font-weight: 500;
        }
        .tab.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        /* ==========================================================================
           WIZARD & PROGRESS BAR
           ========================================================================== */
        .wizard-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            align-items: start;
        }

        @media (min-width: 768px) {
            .wizard-layout { grid-template-columns: 1fr 300px; }
        }

        .progress-container {
            margin-bottom: 2rem;
        }
        .progress-bar {
            height: 6px;
            background-color: var(--border);
            border-radius: 999px;
            overflow: hidden;
            margin-top: 0.75rem;
        }
        .progress-fill {
            height: 100%;
            background-color: var(--primary);
            transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .step-indicator {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 0.5rem;
        }
        .step-indicator h2 {
            font-size: 1.5rem;
            letter-spacing: -0.025em;
        }
        .step-indicator span {
            font-weight: 600;
            background: var(--bg);
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            color: var(--primary);
            font-size: 0.75rem;
        }

        /* ==========================================================================
           MOCK FILE INPUT & CHECKLISTS
           ========================================================================== */
        .file-upload-mock {
            border: 2px dashed var(--border);
            border-radius: var(--radius);
            padding: 1.5rem;
            text-align: center;
            cursor: pointer;
            transition: all 0.2s;
            background-color: var(--bg);
        }
        .file-upload-mock:hover { border-color: var(--primary); }
        .file-upload-mock.uploaded {
            border-color: var(--success);
            background-color: rgba(16, 185, 129, 0.05);
        }
        
        .checklist-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 0.5rem;
            background-color: var(--bg);
        }
        .checklist-item.checked {
            border-color: var(--success);
            background-color: rgba(16, 185, 129, 0.05);
        }
        .check-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 2px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: transparent;
        }
        .checked .check-icon {
            background-color: var(--success);
            border-color: var(--success);
            color: white;
        }

        /* ==========================================================================
           SUMMARY SIDEBAR
           ========================================================================== */
        .summary-card {
            background-color: var(--bg);
            border: 1px solid var(--border);
            padding: 1.5rem;
            border-radius: var(--radius);
        }
        .summary-item {
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed var(--border);
        }
        .summary-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0;}
        .summary-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; }
        .summary-value { font-weight: 500; word-break: break-word; }

        /* ==========================================================================
           CERTIFICATE
           ========================================================================== */
        .certificate-container {
            max-width: 800px;
            margin: 0 auto;
        }
        .certificate-toolbar {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            margin-bottom: 1rem;
            align-items: stretch;
        }
        .certificate-back-btn {
            margin-left: 0;
            margin-bottom: 0;
            width: 100%;
            justify-content: flex-start;
            padding: 0.6rem 0.75rem;
        }
        .certificate-actions {
            display: flex;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            gap: 0.5rem;
            width: 100%;
        }
        .certificate-action-btn {
            width: auto;
            flex: 0 0 auto;
            padding: 0.55rem 0.6rem;
            font-size: 0.86rem;
            min-height: auto;
            justify-content: center;
            white-space: nowrap;
        }
        .certificate-brand-logo {
            height: 48px;
            width: auto;
            margin: 0 auto;
        }
        .certificate {
            border: 4px solid var(--bg);
            outline: 1px solid var(--border);
            padding: 1.5rem;
            text-align: center;
            background-color: white;
            position: relative;
            box-shadow: var(--shadow);
        }
        @media (min-width: 768px) {
            .certificate { border: 12px solid var(--bg); padding: 4rem; }
            .certificate-toolbar {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
            .certificate-back-btn {
                width: auto;
                justify-content: flex-start;
            }
            .certificate-actions {
                display: flex;
                flex-wrap: wrap;
                justify-content: flex-end;
                gap: 0.5rem;
                width: auto;
            }
            .certificate-action-btn {
                width: auto;
                padding: 0.45rem 0.65rem;
                font-size: 0.82rem;
            }
            .certificate-brand-logo {
                height: 56px;
            }
        }
        .cert-header { 
            color: var(--primary); 
            font-size: 1.75rem; 
            margin-bottom: 1rem; 
            font-family: 'Georgia', serif;
            letter-spacing: -0.02em;
            text-transform: uppercase;
        }
        @media (min-width: 768px) {
            .cert-header { font-size: 2.5rem; }
        }
        .cert-badge {
            background-color: var(--success);
            color: white;
            padding: 0.5rem 1.5rem;
            border-radius: 4px;
            display: inline-block;
            font-weight: bold;
            letter-spacing: 2px;
            margin-bottom: 2.5rem;
            font-size: 0.875rem;
        }
        .cert-body { margin-bottom: 2rem; font-size: 1.125rem;}
        .cert-score {
            font-size: 3.5rem;
            font-weight: bold;
            color: var(--success);
            line-height: 1;
        }
        .cert-footer {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            border-top: 1px solid var(--border);
            padding-top: 1.5rem;
            margin-top: 3rem;
            font-size: 0.875rem;
            color: var(--text-muted);
            text-align: left;
        }

        /* ==========================================================================
           TOAST NOTIFICATIONS
           ========================================================================== */
        #toast-container {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            z-index: 9999;
        }
        .toast {
            min-width: 250px;
            background-color: var(--text-main);
            color: white;
            padding: 1rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transform: translateX(120%);
            transition: transform 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .toast.show { transform: translateX(0); }
        .toast.success { border-left: 4px solid var(--success); }
        .toast.error { border-left: 4px solid var(--error); }

        /* ==========================================================================
           MOBILE FIRST TYPOGRAPHY & SECTIONS (LANDING)
           ========================================================================== */
        .hero-title { font-size: 2.25rem; line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 1rem; }
        .hero-subtitle { font-size: 1.05rem; line-height: 1.5; margin-bottom: 2rem; max-width: 700px; margin-left: auto; margin-right: auto; }
        .section-title { font-size: 1.75rem; margin-bottom: 1rem; color: var(--primary); letter-spacing: -0.02em; }
        .stats-container { background: var(--primary); color: white; border-radius: var(--radius); padding: 2rem 1.25rem; margin-bottom: 3rem; text-align: center; box-shadow: var(--shadow); }
        .stats-number { font-size: 2.5rem; font-weight: 800; line-height: 1; margin-bottom: 0.5rem; }
        .cta-card { background: var(--primary); color: white; border: none; padding: 2.5rem 1.25rem; text-align: center; border-radius: var(--radius); }
        .landing-section { margin-bottom: 3.5rem; text-align: center; }

        /* Sección "Tecnología y Respaldo" adaptada a móvil sin desbordes */
        .respaldo-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0.75rem;
            max-width: 860px;
            margin: 0 auto;
        }
        .respaldo-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            width: 100%;
            min-width: 0;
            background: white;
            padding: 0.9rem 1rem;
            border-radius: 14px;
            border: 1px solid var(--border);
        }
        .respaldo-item svg {
            flex: 0 0 auto;
        }
        .respaldo-item .text-left {
            min-width: 0;
        }
        .respaldo-item .font-bold,
        .respaldo-item .text-xs {
            overflow-wrap: anywhere;
            word-break: break-word;
        }

        @media (min-width: 768px) {
            .hero-title { font-size: 3.5rem; }
            .hero-subtitle { font-size: 1.25rem; margin-bottom: 2.5rem; }
            .section-title { font-size: 2.25rem; margin-bottom: 1.5rem; }
            .stats-container { padding: 4rem 2rem; margin-bottom: 5rem; }
            .stats-number { font-size: 3.5rem; margin-bottom: 1rem; }
            .cta-card { padding: 4rem 2rem; }
            .landing-section { margin-bottom: 5rem; }
            .respaldo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
            .respaldo-item { border-radius: 999px; padding: 1rem 1.2rem; }
        }

        /* ==========================================================================
           LOADER
           ========================================================================== */
        .loader {
            border: 3px solid rgba(255,255,255,0.3);
            border-radius: 50%;
            border-top: 3px solid white;
            width: 20px;
            height: 20px;
            animation: spin 1s linear infinite;
            display: none;
        }
        .btn.loading .loader { display: inline-block; }
        .btn.loading span { display: none; }
        @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

        /* ==========================================================================
           PRINT STYLES
           ========================================================================== */
        @media print {
            body { background: white; }
            header, .no-print { display: none !important; }
            main { padding: 0; }
            .card { border: none; box-shadow: none; padding: 0; }
            .certificate { border: 4px solid #000; padding: 2rem; }
        }

        /* ==========================================================================
           FLOATING HELP BUTTON (WhatsApp)
           ========================================================================== */
        .btn-floating-help {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background-color: #25D366;
            color: white;
            padding: 0.75rem 1.25rem;
            border-radius: 9999px;
            box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            text-decoration: none;
            font-weight: bold;
            font-size: 0.875rem;
            z-index: 1000;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn-floating-help:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(37, 211, 102, 0.5);
        }
        .btn-floating-help svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }
        @media (max-width: 768px) {
            .methodology-step-badge {
                margin-left: auto;
                margin-right: auto;
            }
            .btn {
                white-space: normal;
            }
            .btn-floating-help {
                bottom: 1rem;
                right: 1rem;
                padding: 0.6rem 1rem;
            }
        }