/* ═══════════════════════════════════════
           DESIGN TOKENS — Landing Page
           Usa tokens del DS XPYME como base, con
           extensiones específicas para la landing
           ═══════════════════════════════════════ */
        :root {
            /* Extensiones para la estética de landing (basadas en la paleta DS) */
            --landing-primary: var(--color-primary-base);
            --landing-primary-hover: var(--color-primary-hover);
            --landing-primary-glow: rgba(0, 151, 167, 0.35);
            --landing-accent: var(--color-teal-400);
            --landing-accent-secondary: var(--color-info);
            --landing-bg-start: var(--color-slate-900);
            --landing-bg-mid: #1a2e3d;
            --landing-bg-end: var(--color-slate-900);
            --landing-glass-bg: rgba(255, 255, 255, 0.05);
            --landing-glass-bg-strong: rgba(255, 255, 255, 0.08);
            --landing-glass-border: rgba(255, 255, 255, 0.1);
            --landing-glass-border-hover: rgba(255, 255, 255, 0.2);
            --landing-text-main: #f8fafc;
            --landing-text-muted: #94a3b8;
            --landing-text-subtle: #64748b;
            --landing-input-bg: rgba(0, 0, 0, 0.2);
            --landing-success: var(--color-success);
            --landing-section-gap: 100px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: var(--font-family-main);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            min-height: 100vh;
            background: linear-gradient(160deg, var(--landing-bg-start), var(--landing-bg-mid), var(--landing-bg-end));
            color: var(--landing-text-main);
            overflow-x: hidden;
            position: relative;
        }

        /* ═══════════════════════════════════════
           ANIMATED BACKGROUND BLOBS
           ═══════════════════════════════════════ */
        .blob {
            position: fixed;
            filter: blur(100px);
            z-index: 0;
            opacity: 0.5;
            border-radius: 50%;
            animation: float 25s infinite alternate cubic-bezier(0.5, 0, 0.5, 1);
            pointer-events: none;
        }

        .blob-1 {
            top: -10%;
            left: -5%;
            width: 600px;
            height: 600px;
            background: rgba(0, 151, 167, 0.3);
        }

        .blob-2 {
            bottom: -15%;
            right: -5%;
            width: 700px;
            height: 700px;
            background: rgba(0, 131, 143, 0.25);
            animation-delay: -7s;
        }

        .blob-3 {
            top: 50%;
            left: 30%;
            width: 400px;
            height: 400px;
            background: rgba(23, 162, 184, 0.15);
            animation-delay: -12s;
        }

        @keyframes float {
            0% { transform: translate(0, 0) scale(1); }
            33% { transform: translate(40px, -30px) scale(1.05); }
            66% { transform: translate(-30px, 40px) scale(0.95); }
            100% { transform: translate(20px, -20px) scale(1.02); }
        }

        /* ═══════════════════════════════════════
           NAVBAR
           ═══════════════════════════════════════ */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--space-lg) 40px;
            background: rgba(38, 50, 56, 0.6);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--landing-glass-border);
            transition: background 0.3s ease;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            text-decoration: none;
            color: var(--landing-text-main);
        }

        .navbar-brand i {
            width: 32px;
            height: 32px;
            color: var(--landing-primary);
        }

        .navbar-brand span {
            font-size: var(--text-lg);
            font-weight: 700;
            letter-spacing: -0.5px;
        }

        .navbar-brand .brand-accent {
            color: var(--landing-accent);
            font-weight: 400;
        }

        .btn-nav-login {
            padding: var(--space-md) var(--space-xl);
            border: 1px solid var(--landing-glass-border);
            border-radius: var(--rounded-md);
            background: var(--landing-glass-bg);
            color: var(--landing-text-main);
            font-size: var(--text-sm);
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .btn-nav-login:hover {
            background: var(--landing-primary);
            border-color: var(--landing-primary);
            box-shadow: 0 0 20px var(--landing-primary-glow);
            transform: translateY(-1px);
        }

        /* ═══════════════════════════════════════
           HERO SECTION
           ═══════════════════════════════════════ */
        .hero {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            padding: 120px var(--space-xl) 80px;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: var(--space-sm);
            padding: var(--space-sm) var(--space-xl);
            background: var(--landing-glass-bg-strong);
            border: 1px solid var(--landing-glass-border);
            border-radius: var(--rounded-full);
            font-size: 13px;
            font-weight: 500;
            color: var(--landing-accent);
            margin-bottom: var(--space-2xl);
            animation: fade-in-down 0.8s ease forwards;
            opacity: 0;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--landing-success);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }

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

        .hero h1 {
            font-size: clamp(40px, 6vw, 72px);
            font-weight: 900;
            line-height: var(--leading-tight);
            letter-spacing: var(--tracking-tighter);
            margin-bottom: var(--space-xl);
            max-width: 800px;
            animation: fade-in-up 0.8s 0.15s ease forwards;
            opacity: 0;
        }

        .hero h1 .gradient-text {
            background: linear-gradient(135deg, var(--landing-primary), var(--landing-accent), var(--landing-accent-secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero .hero-sub {
            font-size: clamp(16px, 2vw, 20px);
            color: var(--landing-text-muted);
            max-width: 560px;
            line-height: var(--leading-relaxed);
            margin-bottom: var(--space-3xl);
            animation: fade-in-up 0.8s 0.3s ease forwards;
            opacity: 0;
        }

        @keyframes fade-in-up {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .hero-actions {
            display: flex;
            gap: var(--space-lg);
            animation: fade-in-up 0.8s 0.45s ease forwards;
            opacity: 0;
        }

        .btn-cta {
            padding: var(--space-lg) var(--space-3xl);
            border: none;
            border-radius: var(--rounded-lg);
            font-size: var(--text-base);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .btn-cta-primary {
            background: linear-gradient(135deg, var(--landing-primary), var(--color-teal-900));
            color: white;
            box-shadow: 0 8px 30px -5px var(--landing-primary-glow);
        }

        .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px -5px var(--landing-primary-glow);
        }

        .btn-cta-ghost {
            background: transparent;
            color: var(--landing-text-main);
            border: 1px solid var(--landing-glass-border);
        }

        .btn-cta-ghost:hover {
            background: var(--landing-glass-bg-strong);
            border-color: var(--landing-glass-border-hover);
            transform: translateY(-2px);
        }

        /* Scroll indicator */
        .scroll-indicator {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: var(--space-sm);
            color: var(--landing-text-subtle);
            font-size: var(--text-xs);
            animation: bounce-soft 2.5s infinite;
        }

        .scroll-indicator i {
            width: var(--icon-lg);
            height: var(--icon-lg);
        }

        @keyframes bounce-soft {
            0%, 100% { transform: translateX(-50%) translateY(0); }
            50% { transform: translateX(-50%) translateY(10px); }
        }

        /* ═══════════════════════════════════════
           BENEFITS SECTION
           ═══════════════════════════════════════ */
        .section {
            position: relative;
            z-index: 1;
            padding: 0 var(--space-xl);
            margin-bottom: var(--landing-section-gap);
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--space-4xl);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--landing-accent);
            margin-bottom: var(--space-lg);
        }

        .section-header h2 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: var(--space-lg);
        }

        .section-header p {
            font-size: 17px;
            color: var(--landing-text-muted);
            max-width: 520px;
            margin: 0 auto;
            line-height: var(--leading-relaxed);
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
            gap: var(--space-xl);
            max-width: 1100px;
            margin: 0 auto;
        }

        .benefit-card {
            padding: var(--space-3xl) 28px;
            background: var(--landing-glass-bg);
            border: 1px solid var(--landing-glass-border);
            border-radius: var(--rounded-lg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            position: relative;
            overflow: hidden;
        }

        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--landing-primary), transparent);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .benefit-card:hover {
            transform: translateY(-6px);
            border-color: var(--landing-glass-border-hover);
            box-shadow: 0 20px 60px -15px rgba(0, 0, 0, 0.4);
        }

        .benefit-card:hover::before {
            opacity: 1;
        }

        .benefit-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--rounded-lg);
            margin-bottom: var(--space-xl);
            transition: transform 0.3s ease;
        }

        .benefit-card:hover .benefit-icon {
            transform: scale(1.1);
        }

        .benefit-icon i {
            width: 26px;
            height: 26px;
        }

        .benefit-icon.icon-sync {
            background: rgba(0, 151, 167, 0.15);
            color: var(--landing-primary);
        }

        .benefit-icon.icon-categories {
            background: rgba(38, 198, 218, 0.15);
            color: var(--landing-accent);
        }

        .benefit-icon.icon-inventory {
            background: rgba(40, 167, 69, 0.15);
            color: var(--landing-success);
        }

        .benefit-icon.icon-dashboard {
            background: rgba(23, 162, 184, 0.15);
            color: var(--landing-accent-secondary);
        }

        .benefit-card h3 {
            font-size: var(--text-lg);
            font-weight: 700;
            margin-bottom: var(--space-md);
            letter-spacing: -0.3px;
        }

        .benefit-card p {
            font-size: var(--text-sm);
            color: var(--landing-text-muted);
            line-height: var(--leading-relaxed);
        }

        /* ═══════════════════════════════════════
           CTA SECTION
           ═══════════════════════════════════════ */
        .cta-section {
            position: relative;
            z-index: 1;
            max-width: 700px;
            margin: 0 auto var(--landing-section-gap);
            padding: var(--space-4xl) 40px;
            text-align: center;
            background: var(--landing-glass-bg-strong);
            border: 1px solid var(--landing-glass-border);
            border-radius: var(--rounded-lg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }

        .cta-section h2 {
            font-size: clamp(24px, 3.5vw, 34px);
            font-weight: 800;
            margin-bottom: var(--space-lg);
            letter-spacing: -0.5px;
        }

        .cta-section p {
            font-size: var(--text-base);
            color: var(--landing-text-muted);
            margin-bottom: var(--space-2xl);
            line-height: var(--leading-relaxed);
        }

        /* ═══════════════════════════════════════
           FOOTER
           ═══════════════════════════════════════ */
        .footer {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: var(--space-2xl) var(--space-xl);
            border-top: 1px solid var(--landing-glass-border);
            color: var(--landing-text-subtle);
            font-size: 13px;
        }

        
        /* ═══════════════════════════════════════
           LOGIN CONTAINER (NUEVO)
           ═══════════════════════════════════════ */
        .login-container {
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            width: 100%;
            position: relative;
            z-index: 10;
        }
        .login-card {
            position: relative;
            width: 100%;
            max-width: 420px;
            margin: var(--space-xl);
            padding: 40px;
            background: rgba(38, 50, 56, 0.9);
            border: 1px solid var(--landing-glass-border);
            border-radius: var(--rounded-lg);
            box-shadow: 0 25px 60px -12px rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
        }

        /* ═══════════════════════════════════════
           LOGIN MODAL
           ═══════════════════════════════════════ */
        .modal-overlay-old {
            position: fixed;
            inset: 0;
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            opacity: 0;
            visibility: hidden;
            transition: all 0.35s ease;
        }

        .modal-overlay-old.active {
            opacity: 1;
            visibility: visible;
        }

        .modal-card-old {
            position: relative;
            width: 100%;
            max-width: 420px;
            margin: var(--space-xl);
            padding: 40px;
            background: rgba(38, 50, 56, 0.9);
            border: 1px solid var(--landing-glass-border);
            border-radius: var(--rounded-lg);
            box-shadow: 0 25px 60px -12px rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            transform: translateY(30px) scale(0.95);
            transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        .modal-overlay-old.active .modal-card-old {
            transform: translateY(0) scale(1);
        }

        .modal-close-old {
            position: absolute;
            top: var(--space-lg);
            right: var(--space-lg);
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: none;
            border-radius: var(--rounded-md);
            background: var(--landing-glass-bg);
            color: var(--landing-text-muted);
            font-size: var(--text-xl);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .modal-close:hover {
            background: rgba(220, 53, 69, 0.2);
            color: #fca5a5;
        }

        .modal-header {
            text-align: center;
            margin-bottom: var(--space-2xl);
        }

        .modal-header i {
            width: 44px;
            height: 44px;
            color: var(--landing-primary);
            margin-bottom: var(--space-lg);
            display: block;
            margin-left: auto;
            margin-right: auto;
        }

        .modal-header h2 {
            font-size: var(--text-2xl);
            font-weight: 700;
            margin-bottom: 6px;
            background: linear-gradient(to right, #fff, #cbd5e1);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .modal-header p {
            color: var(--landing-text-muted);
            font-size: var(--text-sm);
        }

        /* Formulario dentro del modal */
        .form-group {
            margin-bottom: var(--space-lg);
            position: relative;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 7px;
            color: var(--landing-text-muted);
            transition: color 0.3s ease;
        }

        .form-control {
            width: 100%;
            padding: 13px var(--space-lg);
            background: var(--landing-input-bg);
            border: 1px solid var(--landing-glass-border);
            border-radius: var(--rounded-md);
            color: #fff;
            font-size: 15px;
            transition: all 0.3s ease;
            outline: none;
        }

        .form-control:focus {
            border-color: var(--landing-primary);
            box-shadow: 0 0 0 4px rgba(0, 151, 167, 0.15);
            background: rgba(0, 0, 0, 0.3);
        }

        /* Inputs en mayúsculas */
        .input-uppercase {
            text-transform: uppercase;
        }

        .input-uppercase::placeholder {
            text-transform: none;
        }

        /* Wrapper del campo contraseña con toggle */
        .password-wrapper {
            position: relative;
            display: flex;
            align-items: center;
        }

        .password-wrapper .form-control {
            padding-right: 48px;
        }

        .password-toggle {
            position: absolute;
            right: 8px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            border-radius: var(--rounded-sm, 4px);
            color: var(--landing-text-muted);
            transition: color 0.2s, background 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
        }

        .password-toggle:hover {
            color: var(--landing-text-main);
            background: rgba(255, 255, 255, 0.08);
        }

        .password-toggle i {
            width: 20px;
            height: 20px;
        }

        .btn-submit {
            width: 100%;
            padding: var(--space-lg);
            border: none;
            border-radius: var(--rounded-md);
            background: linear-gradient(135deg, var(--landing-primary), var(--color-teal-900));
            color: white;
            font-size: var(--text-base);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px -3px var(--landing-primary-glow);
            margin-top: var(--space-sm);
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px -5px var(--landing-primary-glow);
        }

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

        .messages {
            margin-bottom: var(--space-lg);
        }

        .message {
            padding: var(--space-md);
            border-radius: var(--rounded-md);
            font-size: var(--text-sm);
            text-align: center;
            background: rgba(220, 53, 69, 0.15);
            border: 1px solid rgba(220, 53, 69, 0.35);
            color: #fca5a5;
        }

        /* ═══════════════════════════════════════
           SCROLL REVEAL
           ═══════════════════════════════════════ */
        .reveal {
            opacity: 0;
            transform: translateY(40px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ═══════════════════════════════════════
           RESPONSIVE
           ═══════════════════════════════════════ */
        @media (max-width: 768px) {
            .navbar {
                padding: var(--space-lg) var(--space-xl);
            }

            .navbar-brand span {
                font-size: 15px;
            }

            .hero {
                padding: 100px var(--space-xl) var(--space-4xl);
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
                max-width: 320px;
            }

            .btn-cta {
                width: 100%;
                text-align: center;
            }

            .benefits-grid {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }

            .cta-section {
                margin-left: var(--space-lg);
                margin-right: var(--space-lg);
                padding: 40px var(--space-xl);
            }

            .modal-card-old {
                padding: 28px var(--space-xl);
                margin: var(--space-lg);
            }

            .scroll-indicator {
                display: none;
            }
        }