@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    /* Color Palette */
    --primary: #000000;
    --secondary: #ffffff;
    --accent: #111111;
    --muted: #666666;
    --light-grey: #f5f5f7;
    --border-color: rgba(0, 0, 0, 0.08);
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 120px 5%;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;
}

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

h1, h2, h3, h4, .heading {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Layout utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
}

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

.grid {
    display: grid;
    gap: 30px;
}

/* Typography styles */
.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 0.95;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 20px;
}

.subheadline {
    font-size: 1.25rem;
    color: var(--muted);
    max-width: 600px;
    margin-bottom: 40px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 16px 32px;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: 100px;
    transition: var(--transition-smooth);
    cursor: pointer;
    font-size: 1rem;
    gap: 10px;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--secondary);
    border: 1px solid var(--primary);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary);
    transform: translateY(-2px);
}

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

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

/* Navbar */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-smooth);
}

header.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links a:hover {
    color: var(--muted);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    cursor: pointer;
    z-index: 1001;
    background: none;
    border: none;
    padding: 10px;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--primary);
    margin: 5px 0;
    transition: var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-smooth);
    will-change: transform, opacity;
}

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

/* Floating WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 999;
}

/* Urgency Badge */
.urgency-badge {
    display: inline-block;
    background: #ff3b30;
    color: white;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 20px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Popup */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    backdrop-filter: blur(10px);
}

.popup-content {
    background: white;
    padding: 50px;
    border-radius: 24px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    position: relative;
    transform: scale(0.9);
    transition: var(--transition-smooth);
}

.popup-overlay.active {
    display: flex;
}

.popup-overlay.active .popup-content {
    transform: scale(1);
}

/* Hero Section Styles */
.hero {
    position: relative;
    background: linear-gradient(rgba(255,255,255,0.92), rgba(255,255,255,0.92)), url('../assets/hero.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

/* Service Card & Case Study Image Placeholders */
.service-card {
    background: white;
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}

.case-card {
    transition: var(--transition-smooth);
    background-size: cover;
    background-position: center;
}

.case-card:hover {
    transform: scale(1.02);
}

/* Marquee Animation */
.marquee-container {
    overflow: hidden;
    white-space: nowrap;
    position: relative;
    padding: 30px 0;
    background: var(--light-grey);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.marquee-content {
    display: inline-flex;
    animation: marquee 80s linear infinite;
    will-change: transform;
}

.marquee-container:hover .marquee-content {
    animation-play-state: paused;
}

.marquee-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 0 40px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
}

.marquee-item i {
    font-size: 1.4rem;
    color: var(--muted);
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: block;
        order: 2; /* Ensure hamburger is on the right */
    }

    .logo {
        order: 1;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%; /* Full width for better mobile experience */
        height: 100vh;
        background: var(--secondary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        transition: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 1000;
        display: flex;
    }

    /* Add a close button or just margin to top link */
    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1.2rem;
    }

    .hero-title {
        font-size: 3rem;
    }

    .section {
        padding: 80px 5%;
    }
    
    header nav .btn-primary {
        display: none; /* Hide free audit button on mobile nav bar to make room */
    }
}

/* Premium Footer */
footer {
    background: #000;
    color: var(--secondary);
    padding: 100px 0 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-main {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 5%;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 60px;
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-col h4 {
    color: var(--secondary);
    font-size: 1.1rem;
    margin-bottom: 25px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-tagline {
    color: #888;
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 320px;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #888;
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--secondary);
    padding-left: 5px;
}

.footer-socials {
    display: flex;
    gap: 15px;
}

.footer-socials a {
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 1.1rem;
}

.footer-socials a:hover {
    background: var(--secondary);
    color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.footer-bottom {
    text-align: center;
    color: #555;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    footer {
        padding: 60px 0 30px;
    }
}