/* --- CSS Variables & Design System --- */
:root {
    /* Colors */
    --bg-color: #ffffff; /* White background */
    --surface-light: rgba(241, 245, 249, 0.8); /* faint gray/blue structure */
    --surface-heavy: rgba(255, 255, 255, 0.95);
    --primary: #2563eb; /* Deeper Blue for contrast */
    --secondary: #4f46e5; /* Indigo */
    --accent: #0d9488; /* Darker Teal/Cyan for legibility */
    --text-main: #0f172a; /* Dark slate for main text */
    --text-muted: #475569; /* Medium slate */
    --border-light: rgba(0, 0, 0, 0.08);

    /* Typography */
    --font-body: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;

    /* Spacing & Layout */
    --container-max: 1200px;
    --section-pad: 100px 0;

    /* Transitions & Effects */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.15);
    --glass-blur: blur(12px);
}

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

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

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

/* Background Effects */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: 
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(99, 102, 241, 0.08) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.2;
}

a {
    color: var(--text-main);
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

img, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- Global Utility Classes --- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

.section {
    padding: var(--section-pad);
    position: relative;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.text-muted {
    color: var(--text-muted);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    outline: none;
    font-family: var(--font-body);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    z-index: -1;
    transition: opacity var(--transition-smooth);
    opacity: 0;
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

/* --- Animation Classes --- */
.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);
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: var(--transition-smooth);
    background: transparent;
}

.navbar.scrolled {
    background: var(--surface-heavy);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 1rem 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    border-bottom: 1px solid var(--border-light);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    font-family: var(--font-heading);
}

.logo i {
    color: var(--primary);
    font-size: 2rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a:not(.btn) {
    font-weight: 500;
    position: relative;
    padding-bottom: 0.3rem;
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: var(--transition-smooth);
}

.nav-links a:not(.btn):hover {
    color: var(--primary);
}

.nav-links a:not(.btn):hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-main);
}

.about-floating-logo {
    width: 100%;
    max-width: 320px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
    position: relative;
    z-index: 1;
    animation: float 6s ease-in-out infinite alternate;
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    top: 20%;
    right: 10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.4) 0%, rgba(45, 212, 191, 0.1) 50%, transparent 70%);
    filter: blur(80px);
    z-index: 0;
    animation: pulse 8s infinite alternate;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.1); opacity: 1; }
}

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

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 50px;
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.hero-cta i {
    margin-left: 0.5rem;
    transition: transform var(--transition-fast);
}

.hero-cta .btn-primary:hover i {
    transform: translateX(4px);
}

.btn-secondary {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-main);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background: rgba(0, 0, 0, 0.1);
    border-color: rgba(0, 0, 0, 0.2);
}

.hero-stats {
    display: flex;
    gap: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
}

.stat-item h4 {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 0.2rem;
}

.stat-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Glass Cards (Hero Visual) */
.hero-visual {
    position: relative;
    perspective: 1000px;
}

.glass-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(241, 245, 249, 0.7));
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.main-card {
    padding: 2rem;
    transform: rotateY(-10deg) rotateX(5deg);
    transition: transform var(--transition-smooth);
}

.main-card:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 1rem;
}

.dots {
    display: flex;
    gap: 6px;
}

.dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ef4444;
}

.dots span:nth-child(2) { background: #eab308; }
.dots span:nth-child(3) { background: #22c55e; }

.status {
    color: #22c55e;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.metric-row {
    margin-bottom: 1.2rem;
}

.metric-label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 0.4rem;
}

.progress-bar .fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.metric-value {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.floating-card {
    position: absolute;
    bottom: -20px;
    left: -30px;
    padding: 1.2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: float 5s ease-in-out infinite;
}

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

.icon-box {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(59, 130, 246, 0.2);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.text-box h5 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.text-box p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-visual {
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--surface-heavy);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        padding: 2rem;
        transition: var(--transition-smooth);
        border-bottom: 1px solid var(--border-light);
        gap: 1.5rem;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
}

/* --- Section Headers --- */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.section-title {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.1rem;
    line-height: 1.7;
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2.2rem;
    }
}

/* --- Services Section --- */
.services {
    background: relative;
    z-index: 1;
}

.services::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(45, 212, 191, 0.15) 0%, transparent 70%);
    filter: blur(60px);
    z-index: -1;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 20px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), transparent);
    z-index: 0;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3), inset 0 0 20px rgba(59, 130, 246, 0.05);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(45, 212, 191, 0.15));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
    transition: var(--transition-smooth);
}

.service-card:hover .card-icon {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    transform: scale(1.1);
}

.service-card h3 {
    font-size: 1.25rem;
    line-height: 1.4;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.service-card p {
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.service-link i {
    transition: transform var(--transition-fast);
}

.service-link:hover {
    color: var(--accent);
}

.service-link:hover i {
    transform: translateX(4px);
}

/* --- About Section --- */
.about {
    border-top: 1px solid var(--border-light);
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.features-list li {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.features-list i {
    font-size: 1.8rem;
    color: var(--primary);
    margin-top: 4px;
}

.features-list h4 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

.about-visual {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    z-index: 0;
}

.circle-1 {
    width: 250px;
    height: 250px;
    background: rgba(59, 130, 246, 0.2);
    top: 10%;
    left: 10%;
    animation: drift 8s infinite alternate;
}

.circle-2 {
    width: 200px;
    height: 200px;
    background: rgba(45, 212, 191, 0.2);
    bottom: 10%;
    right: 10%;
    animation: drift 10s infinite alternate-reverse;
}

@keyframes drift {
    0% { transform: translate(0, 0); }
    100% { transform: translate(30px, -30px); }
}

.glass-panel {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(241, 245, 249, 0.7));
    backdrop-filter: var(--glass-blur);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 16px;
    padding: 2rem;
    width: 100%;
    max-width: 350px;
    z-index: 1;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.panel-header {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 2rem;
    text-align: center;
}

.panel-body {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    height: 150px;
    gap: 10px;
}

.chart-bar {
    width: 15%;
    height: 100%;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 6px 6px 0 0;
    position: relative;
    display: flex;
    align-items: flex-end;
}

.chart-bar .fill {
    width: 100%;
    background: var(--secondary);
    border-radius: 6px 6px 0 0;
    transition: height 1.5s ease-out;
}

.accent-bar .fill {
    background: linear-gradient(0deg, var(--primary), var(--accent));
    box-shadow: 0 0 15px rgba(45, 212, 191, 0.4);
}

@media (max-width: 992px) {
    .about-container {
        grid-template-columns: 1fr;
    }
}

/* --- Contact Section --- */
.contact {
    background: var(--surface-light);
    border-top: 1px solid var(--border-light);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-card {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.info-card h5 {
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
}

.contact-form {
    background: var(--surface-heavy);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid var(--border-light);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.form-group {
    margin-bottom: 1.5rem;
}

input, textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 1rem 1.5rem;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
    outline: none;
}

textarea {
    resize: vertical;
}

input:focus, textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
    background: #ffffff;
}

input::placeholder, textarea::placeholder {
    color: var(--text-muted);
}

@media (max-width: 992px) {
    .contact-container {
        grid-template-columns: 1fr;
    }
    .contact-form {
        padding: 2rem;
    }
}

/* --- Footer --- */
.footer {
    background: #f8fafc;
    padding-top: 4rem;
    border-top: 1px solid var(--border-light);
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-col a {
    color: var(--text-muted);
}

.footer-col a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding: 1.5rem 0;
    text-align: center;
}

@media (max-width: 768px) {
    .footer-container {
        grid-template-columns: 1fr;
    }
}