/* --- CSS Variables & Design System --- */
:root {
    /* Color Palette */
    --primary: #2563eb;          /* Royal Blue */
    --primary-dark: #1e40af;
    --primary-light: #dbeafe;
    --secondary: #0f172a;        /* Deep Slate */
    --accent: #f59e0b;           /* Amber / Gold */
    --success: #10b981;          /* Emerald Green */
    --whatsapp: #25D366;         /* WhatsApp Green */
    --whatsapp-dark: #128C7E;
    
    /* Backgrounds */
    --bg-main: #ffffff;
    --bg-light: #f8fafc;
    --bg-dark: #0f172a;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #f8fafc;
    
    /* Typography */
    --font-main: 'Plus Jakarta Sans', sans-serif;
    
    /* Effects */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.4);
    --radius-md: 12px;
    --radius-lg: 24px;
    --radius-pill: 9999px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    color: var(--text-primary);
    background-color: var(--bg-main);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.text-center { text-align: center; }
.text-success { color: var(--success); }
.text-white { color: white !important; }
.text-gray { color: #cbd5e1 !important; }

/* --- Typography Helpers --- */
h1, h2, h3, h4 {
    color: var(--secondary);
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: 3.5rem; letter-spacing: -0.02em; margin-bottom: 1.5rem; }
h2 { font-size: 2.5rem; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
p { color: var(--text-secondary); margin-bottom: 1rem; font-size: 1.125rem; }

.subtitle {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    outline: none;
}

.btn i { font-size: 1.25rem; }

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: var(--shadow-md);
}
.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--primary-light);
    color: var(--primary);
}
.btn-secondary:hover {
    background-color: #bfdbfe;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 0.75rem 1.5rem; /* slightly less due to border */
}
.btn-outline:hover {
    background-color: var(--primary);
    color: white;
}

.btn-whatsapp {
    background-color: var(--whatsapp);
    color: white;
    font-size: 1.125rem;
    padding: 1rem 2rem;
    box-shadow: 0 10px 25px -5px rgba(37, 211, 102, 0.4);
}
.btn-whatsapp:hover {
    background-color: var(--whatsapp-dark);
    transform: translateY(-3px) scale(1.02);
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
    padding: 1rem 0;
}

.navbar.scrolled {
    padding: 0.75rem 0;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary);
    letter-spacing: -0.5px;
}
.logo i {
    color: var(--primary);
    font-size: 2rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}
.nav-links li a {
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
}
.nav-links li a:not(.btn):hover {
    color: var(--primary);
}

.hamburger {
    display: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--secondary);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    padding: 10rem 0 6rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
}

.hero-bg-shapes {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    z-index: 0;
}

.shape-1 {
    width: 600px; height: 600px;
    background: var(--primary-light);
    top: -200px; right: -100px;
}
.shape-2 {
    width: 400px; height: 400px;
    background: #e0e7ff; /* indigo light */
    bottom: -100px; left: -100px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.badge {
    display: inline-flex;
    background-color: rgba(245, 158, 11, 0.15); /* amber tint */
    color: #d97706; /* amber dark */
    padding: 0.5rem 1rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* Hero Glass Card Illusion */
.hero-image {
    position: relative;
    perspective: 1000px;
}

.glass-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
    transform: rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s ease;
}
.glass-card:hover {
    transform: rotateY(0) rotateX(0);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 1.5rem;
}
.card-header i { font-size: 1.5rem; }

.progress-bar-container { margin-bottom: 2rem; }
.progress-track {
    width: 100%; height: 8px;
    background: #e2e8f0;
    border-radius: var(--radius-pill);
    margin-bottom: 0.5rem;
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), #60a5fa);
    border-radius: var(--radius-pill);
}
.progress-text { font-size: 0.875rem; color: var(--text-secondary); font-weight: 500; }

.glass-stats {
    display: flex;
    gap: 2rem;
    border-top: 1px solid rgba(0,0,0,0.05);
    padding-top: 1.5rem;
}
.stat-item h3 {
    display: inline;
    font-size: 2.5rem;
    color: var(--primary);
    margin: 0;
}
.stat-item span {
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 700;
}
.stat-item p { margin: 0; font-size: 0.875rem; }

.floating-card {
    position: absolute;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    color: var(--secondary);
    animation: float 4s ease-in-out infinite;
}
.floating-card i { color: var(--success); font-size: 1.5rem; }
.float-1 { bottom: -20px; left: -30px; animation-delay: 0s; }
.float-2 { top: -20px; right: -30px; animation-delay: 2s; }

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

/* --- Sections --- */
.section-padding { padding: 6rem 0; }
.section-header { margin-bottom: 4rem; max-width: 700px; margin-inline: auto; }

/* --- Services --- */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background: var(--bg-main);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    border: 1px solid #e2e8f0;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    border-color: var(--primary-light);
}

.service-icon {
    width: 64px; height: 64px;
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
}
.S1-icon { background: #e0e7ff; color: #4338ca; }
.S2-icon { background: rgba(37, 99, 235, 0.1); color: var(--primary); }
.S3-icon { background: #fef3c7; color: #d97706; }

.service-features { margin-top: 1.5rem; }
.service-features li {
    display: flex; align-items: flex-start; gap: 0.5rem;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}
.service-features i { color: var(--success); margin-top: 3px; font-weight: bold;}

.service-card.featured {
    background: var(--secondary);
    color: white;
    border: none;
    box-shadow: var(--shadow-xl);
    transform: scale(1.05);
}
.service-card.featured:hover { transform: scale(1.05) translateY(-8px); }
.service-card.featured h3, .service-card.featured p { color: white; }
.service-card.featured p { opacity: 0.9; }
.text-light li { color: #cbd5e1; }

.popular-tag {
    position: absolute;
    top: 1rem; right: 1rem;
    background: linear-gradient(135deg, var(--accent), #d97706);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-pill);
    text-transform: uppercase;
}

/* --- Why Us --- */
.why-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.why-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.feature-item {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.feature-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.f-icon {
    width: 48px; height: 48px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}
.f-text h4 { margin-bottom: 0.5rem; font-size: 1.125rem; }
.f-text p { font-size: 0.9rem; margin-bottom: 0; }

/* --- CTA Banner --- */
.cta-banner {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--secondary) 0%, #1e293b 100%);
    color: white;
    position: relative;
}
.cta-banner h2 { color: white; }
.cta-banner p { color: var(--text-light); opacity: 0.9; max-width: 600px; margin: 0 auto 2rem; font-size: 1.125rem;}
.cta-note { margin-top: 1.5rem !important; font-size: 0.875rem !important; opacity: 0.7 !important; display: flex; align-items: center; justify-content: center; gap: 0.5rem;}

/* --- Footer --- */
.footer {
    background: #020617; /* Very dark slate */
    color: white;
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo i { color: var(--accent); }
.footer h4 { color: white; font-size: 1.125rem; margin-bottom: 1.5rem; }
.footer ul li { margin-bottom: 0.75rem; }
.footer ul li a {
    color: #94a3b8;
    transition: var(--transition);
}
.footer ul li a:hover { color: var(--accent); padding-left: 5px;}

.footer-contact li {
    display: flex; align-items: center; gap: 0.75rem; color: #94a3b8;
}
.btn-icon-wa { color: var(--whatsapp) !important;}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: center;
    color: #64748b;
    font-size: 0.875rem;
}

/* --- Reveal Animations --- */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* --- Responsive Layouts --- */
@media (max-width: 1024px) {
    h1 { font-size: 2.8rem; }
    .hero-content { gap: 2rem; }
    .service-grid { grid-template-columns: repeat(2, 1fr); }
    .service-card.featured { transform: scale(1); }
    .service-card.featured:hover { transform: translateY(-8px); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 2rem; }
    .section-padding { padding: 4rem 0; }
    
    .hamburger { display: block; }
    .nav-links {
        position: absolute;
        top: 100%; left: 0; right: 0;
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-md);
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.4s ease-in-out;
    }
    .nav-links.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }

    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-buttons { justify-content: center; }
    .hero-image { display: none; /* Hide complex glass card on very small screens or make it simpler */ }
    
    .why-layout { grid-template-columns: 1fr; text-align: center; }
    .service-grid { grid-template-columns: 1fr; }
    .why-features { grid-template-columns: 1fr; text-align: left; }
}