/* =========================================
         DESIGN SYSTEM - CSS VARIABLES
         Added: 2026-03-16
         ========================================= */

        /* === COLOR PALETTE === */
        :root {
            /* Primary Gradients */
            --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 50%, #ec4899 100%);
            --gradient-secondary: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
            --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #2563eb 100%);
            --gradient-ambient: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
            --scrollbar-track: #e2e8f0;
            --scrollbar-thumb-start: #38bdf8;
            --scrollbar-thumb-mid: #2563eb;
            --scrollbar-thumb-end: #06b6d4;

            /* Dark Theme (Primary) */
            --bg-primary: #0a0a0a;
            --bg-secondary: #111111;
            --bg-tertiary: #1a1a1a;

            --text-primary: #ffffff;
            --text-secondary: #a1a1aa;
            --text-tertiary: #71717a;

            --border-subtle: rgba(255,255,255,0.08);
            --border-medium: rgba(255,255,255,0.15);
            --border-strong: rgba(255,255,255,0.25);

            /* Brand Colors */
            --brand-blue: #2563eb;
            --brand-purple: #7c3aed;
            --brand-cyan: #06b6d4;
            --brand-pink: #ec4899;

            /* Light Theme (Contrast Sections) */
            --bg-primary-light: #ffffff;
            --bg-secondary-light: #f8fafc;
            --text-primary-light: #0a0a0a;
            --text-secondary-light: #52525b;
            --border-subtle-light: rgba(0,0,0,0.08);
        }

        /* === SPACING SYSTEM === */
        :root {
            --space-4: 16px;
            --space-6: 24px;
            --space-8: 32px;
            --space-12: 48px;
            --space-16: 64px;
            --space-24: 96px;
            --space-32: 128px;
        }

        /* === TYPOGRAPHY SCALE === */
        :root {
            --display-huge: 80px;
            --display-xl: 64px;
            --display-lg: 48px;
            --body-xl: 24px;
            --body-lg: 18px;
            --body-md: 16px;
            --body-sm: 14px;
        }

        html {
            scrollbar-width: thin;
            scrollbar-color: var(--scrollbar-thumb-mid) var(--scrollbar-track);
        }

        ::-webkit-scrollbar {
            width: 12px;
            height: 12px;
        }

        ::-webkit-scrollbar-track {
            background: linear-gradient(180deg, rgba(226, 232, 240, 0.95), rgba(241, 245, 249, 0.98));
            border-radius: 9999px;
        }

        ::-webkit-scrollbar-thumb {
            background: linear-gradient(180deg, var(--scrollbar-thumb-start), var(--scrollbar-thumb-mid), var(--scrollbar-thumb-end));
            border-radius: 9999px;
            border: 2px solid rgba(241, 245, 249, 0.96);
            box-shadow: 0 0 0 rgba(56, 189, 248, 0);
        }

        ::-webkit-scrollbar-thumb:hover {
            background: linear-gradient(180deg, #67e8f9, #2563eb, #22d3ee);
            box-shadow: 0 0 14px rgba(56, 189, 248, 0.28);
        }

        /* =========================================
         COMPONENT: BUTTONS
         ========================================= */
        .btn-primary {
            background: var(--gradient-primary);
            color: white;
            padding: 16px 32px;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 16px;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
        }
        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-medium);
            color: white;
            padding: 16px 32px;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: var(--border-strong);
        }

        .btn-tertiary {
            background: transparent;
            color: var(--text-secondary);
            padding: 12px 24px;
            border-radius: 9999px;
            border: none;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s ease;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-tertiary:hover {
            color: white;
            background: rgba(255,255,255,0.05);
        }

        /* =========================================
         COMPONENT: CARDS
         ========================================= */
        .card {
            background: rgba(26, 26, 26, 0.8);
            backdrop-filter: blur(20px);
            border: 1px solid var(--border-subtle);
            border-radius: 16px;
            padding: var(--space-8);
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .card:hover {
            border-color: var(--border-medium);
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
            transform: translateY(-4px);
        }

        .card-premium {
            background: linear-gradient(135deg, rgba(37,99,235,0.1) 0%, rgba(124,58,237,0.1) 100%);
            border: 1px solid rgba(124, 58, 237, 0.3);
            box-shadow: 0 20px 40px -10px rgba(124, 58, 237, 0.2);
        }

        /* =========================================
         COMPONENT: INPUTS
         ========================================= */
        .input {
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--border-subtle);
            border-radius: 8px;
            padding: 14px 16px;
            color: white;
            font-size: var(--body-md);
            width: 100%;
            transition: all 0.2s ease;
            box-sizing: border-box;
        }
        .input:focus {
            outline: none;
            border-color: var(--brand-purple);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
            background: rgba(255,255,255,0.05);
        }
        .input::placeholder {
            color: var(--text-tertiary);
        }
        .input-label {
            display: block;
            margin-bottom: 8px;
            font-size: var(--body-sm);
            font-weight: 500;
            color: var(--text-secondary);
        }

        /* =========================================
         ACCESSIBILITY: FOCUS STATES
         ========================================= */
        a:focus, button:focus, .card:focus {
            outline: 2px solid var(--brand-purple);
            outline-offset: 2px;
        }

        .nav-item:focus,
        .nav-item:focus-visible {
            outline: none;
            border-radius: 9999px;
            box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.22);
            background: rgba(255, 255, 255, 0.82);
        }

        /* Skip to content link (accessibility) */
        .skip-link {
            position: absolute;
            top: -40px;
            left: 0;
            background: var(--brand-purple);
            color: white;
            padding: 8px 16px;
            z-index: 100;
            transition: top 0.3s;
        }
        .skip-link:focus {
            top: 0;
        }

        /* =========================================
         UTILITY CLASSES
         ========================================= */
        /* Text gradient utility */
        .text-gradient {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* Container utility */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--space-6);
        }

        /* Section spacing */
        section {
            padding: var(--space-32) 0;
        }
        @media (max-width: 768px) {
            section {
                padding: var(--space-16) 0;
            }
        }

        /* 1. Blob Animation (Background wash) */
        @keyframes blob {
            0% { transform: translate(0px, 0px) scale(1); }
            33% { transform: translate(30px, -50px) scale(1.1); }
            66% { transform: translate(-20px, 20px) scale(0.9); }
            100% { transform: translate(0px, 0px) scale(1); }
        }
        .animate-blob {
            animation: blob 7s infinite;
        }
        .animation-delay-2000 {
            animation-delay: 2s;
        }

        /* 2. Floating Animation (CTA Section) */
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0px); }
        }
        .animate-float {
            animation: float 6s ease-in-out infinite;
        }

        /* 3. Slow Pulse (Core Node) */
        @keyframes pulse-slow {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }
        .animate-pulse-slow {
            animation: pulse-slow 3s cubic-bezier(0.4, 0, 0.6, 1) infinite;
        }

        /* 4. Text Gradient Utility */
        .text-gradient {
            background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        /* --- NAVIGATION MAGIC --- */
        .nav-item {
            position: relative;
        }
        
        /* The frosted glass pill that appears on hover */
        .nav-item::before {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(8px);
            border-radius: 9999px;
            opacity: 0;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            z-index: -1;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
        }

        .nav-item:hover::before {
            transform: translateX(-50%) scaleX(1);
            opacity: 1;
        }

        /* The underline accent */
        .nav-item::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 20px;
            height: 2px;
            background: linear-gradient(90deg, #2563eb, #7c3aed);
            transition: transform 0.3s ease;
        }

        .nav-item:hover::after {
            transform: translateX(-50%) scaleX(1);
        }

        /* --- CRYSTAL GLASS BUTTONS --- */
        .btn-glass {
            position: relative;
            overflow: hidden;
            /* Rich gradient base */
            background: linear-gradient(135deg, #1e40af 0%, #6d28d9 100%);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 9999px;
            color: white;
            font-weight: 600;
            box-shadow: 
                0 10px 15px -3px rgba(0, 0, 0, 0.2), /* Drop shadow */
                inset 0 1px 0 rgba(255, 255, 255, 0.4), /* Top highlight (glass edge) */
                inset 0 -1px 0 rgba(0, 0, 0, 0.1); /* Bottom shadow */
            transition: all 0.3s ease;
        }

        .btn-glass:hover {
            transform: translateY(-2px);
            box-shadow: 
                0 20px 25px -5px rgba(124, 58, 237, 0.4), /* Stronger glow */
                inset 0 1px 0 rgba(255, 255, 255, 0.5); 
        }

        .btn-glass:active {
            transform: translateY(1px);
        }

        /* The Reflection Sheen */
        .btn-glass::after {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 50%;
            height: 100%;
            background: linear-gradient(
                to right,
                transparent,
                rgba(255, 255, 255, 0.3),
                transparent
            );
            transform: skewX(-25deg);
            animation: sheen 4s infinite;
        }

        @keyframes sheen {
            0%, 85%, 100% { left: -100%; opacity: 0; }
            90%, 95% { left: 200%; opacity: 1; } /* Quick pass */
        }

        /* --- SECONDARY BUTTON (Outline Glass) --- */
        .btn-glass-outline {
            background: rgba(255, 255, 255, 0.5);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(37, 99, 235, 0.3);
            color: #1e3a8a;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        .btn-glass-outline:hover {
            background: rgba(255, 255, 255, 0.8);
            border-color: #2563eb;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
        }

        /* --- FOOTER LINKS --- */
        .footer-link {
            position: relative;
            transition: color 0.2s;
        }
        .footer-link::before {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 1px;
            background-color: #7c3aed;
            transition: width 0.3s ease;
        }
        .footer-link:hover::before {
            width: 100%;
        }

        .footer-link-light:hover,
        .footer-link-light:focus,
        .footer-link-light:focus-visible {
            color: #1e3a8a;
        }

        .footer-link:focus,
        .footer-link:focus-visible {
            outline: none;
            border-radius: 9999px;
            box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.18);
            color: white;
        }

        .footer-shell {
            position: relative;
            overflow: hidden;
            background: linear-gradient(90deg, #f8fafc 0%, #ffffff 31%, #0f172a 31%, #08101d 100%);
        }

.footer-shell::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url("../images/footer-liquid-background.svg") center center / cover no-repeat;
    pointer-events: none;
    z-index: 0;
}

        .footer-brand-copy {
            color: #475569;
        }

        .footer-social {
            width: 2.75rem;
            height: 2.75rem;
            border-radius: 9999px;
            background: rgba(15, 23, 42, 0.08);
            color: #1e3a8a;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .footer-social:hover {
            background: #2563eb;
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(37, 99, 235, 0.22);
        }

        .footer-social:focus,
        .footer-social:focus-visible {
            outline: none;
            box-shadow:
                0 0 0 4px rgba(96, 165, 250, 0.18),
                0 10px 22px rgba(37, 99, 235, 0.18);
        }

        .footer-brand-logo {
            width: min(100%, 240px);
            height: auto;
            display: block;
        }

        @media (max-width: 1023px) {
            .footer-shell {
                background: linear-gradient(180deg, #f8fafc 0%, #ffffff 34%, #0f172a 34%, #08101d 100%);
            }
        }

        /* --- GLOBAL LOADER --- */
        .global-loader {
            position: fixed;
            inset: 0;
            z-index: 200;
            display: flex;
            align-items: center;
            justify-content: center;
            background:
                radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 22%),
                radial-gradient(circle at bottom right, rgba(59, 130, 246, 0.14), transparent 20%),
                linear-gradient(180deg, rgba(248, 250, 252, 0.98), rgba(255, 255, 255, 0.98));
            transition: opacity 0.48s ease, visibility 0.48s ease, transform 0.48s ease;
        }

        .global-loader.is-hidden {
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transform: translateY(-12px);
        }

        .global-loader-panel {
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(239, 246, 255, 0.92));
            border: 1px solid rgba(186, 230, 253, 0.9);
            box-shadow: 0 24px 60px rgba(37, 99, 235, 0.12);
            backdrop-filter: blur(14px);
        }

        .loader-signal {
            position: relative;
            height: 0.35rem;
            border-radius: 9999px;
            overflow: hidden;
            background: rgba(226, 232, 240, 0.95);
        }

        .loader-signal::after {
            content: "";
            position: absolute;
            inset: 0;
            width: 34%;
            border-radius: inherit;
            background: linear-gradient(90deg, #67e8f9, #2563eb, #06b6d4);
            animation: loader-sweep 1.3s ease-in-out infinite;
            box-shadow: 0 0 18px rgba(56, 189, 248, 0.22);
        }

        @keyframes loader-sweep {
            0% { transform: translateX(-120%); }
            50% { transform: translateX(110%); }
            100% { transform: translateX(250%); }
        }

        /* Mobile Menu Transitions */
        #mobile-menu {
            transition: opacity 0.3s ease;
        }

        .mobile-menu-icon-open,
        .mobile-menu-icon-close {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .floating-whatsapp-cta {
            position: fixed;
            right: 1.25rem;
            bottom: 1.25rem;
            z-index: 110;
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            min-width: 3.75rem;
            height: 3.75rem;
            padding: 0 1.1rem;
            border-radius: 9999px;
            background: linear-gradient(135deg, #16a34a 0%, #22c55e 100%);
            color: #ffffff;
            box-shadow: 0 18px 40px rgba(22, 163, 74, 0.28);
            text-decoration: none;
            overflow: hidden;
            opacity: 0;
            transform: translateY(18px) scale(0.96);
            pointer-events: none;
            transition:
                opacity 0.28s ease,
                transform 0.28s ease,
                box-shadow 0.28s ease,
                width 0.28s ease,
                background 0.28s ease;
        }

        .floating-whatsapp-cta.is-visible {
            opacity: 1;
            transform: translateY(0) scale(1);
            pointer-events: auto;
        }

        .floating-whatsapp-cta.is-hidden-by-context {
            opacity: 0;
            transform: translateY(18px) scale(0.96);
            pointer-events: none;
        }

        .floating-whatsapp-cta:hover,
        .floating-whatsapp-cta:focus,
        .floating-whatsapp-cta:focus-visible {
            color: #ffffff;
            box-shadow: 0 22px 46px rgba(22, 163, 74, 0.34);
            transform: translateY(-2px) scale(1);
        }

        .floating-whatsapp-cta__icon {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2rem;
            height: 2rem;
            font-size: 1.4rem;
        }

        .floating-whatsapp-cta__text {
            max-width: 0;
            opacity: 0;
            white-space: nowrap;
            overflow: hidden;
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0.01em;
            transition: max-width 0.28s ease, opacity 0.2s ease;
        }

        .floating-whatsapp-cta:hover .floating-whatsapp-cta__text,
        .floating-whatsapp-cta:focus .floating-whatsapp-cta__text,
        .floating-whatsapp-cta:focus-visible .floating-whatsapp-cta__text {
            max-width: 12rem;
            opacity: 1;
        }

        .floating-whatsapp-cta:focus,
        .floating-whatsapp-cta:focus-visible {
            outline: none;
            box-shadow:
                0 0 0 4px rgba(134, 239, 172, 0.28),
                0 22px 46px rgba(22, 163, 74, 0.34);
        }

        @media (max-width: 640px) {
            .floating-whatsapp-cta {
                right: 1rem;
                bottom: 1rem;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            .floating-whatsapp-cta,
            .floating-whatsapp-cta__text {
                transition: none;
            }
        }