/* --- CSS VARIABLES & RESET --- */
:root {
    /* Colors: Energy/Tech palette */
    --bg-body: #f8f9fa;
    --bg-white: #ffffff;
    --text-main: #334155; /* Slate 700 */
    --text-heading: #0f172a; /* Slate 900 */
    --accent-primary: #ffc107; /* Electricity Gold/Yellow */
    --accent-secondary: #0b212d; /* Deep Industrial Blue */
    --overlay-dark: rgba(11, 33, 45, 0.7);

    /* Motion Settings - The "Luxury" Feel */
    --ease-luxury: cubic-bezier(0.4, 0, 0.2, 1);
    --duration-normal: 0.5s;
    --duration-slow: 0.8s;
    
    /* Layout */
    --header-height: 80px;
    --container-width: 1200px;
    --spacing-section: 120px;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* CRITICAL: Global Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4 {
    color: var(--text-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

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

/* --- UTILITIES --- */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border-radius: 4px;
    transition: all var(--duration-normal) var(--ease-luxury);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: var(--text-heading);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    background-color: #ffca2c;
}

/* --- NAVIGATION (Sticky) --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    align-items: center;
    box-shadow: 0 1px 0 rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-heading);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent-primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-heading);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-primary);
    transition: width 0.3s var(--ease-luxury);
}

.nav-links a:hover::after {
    width: 100%;
}

/* --- HERO SECTION --- */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;

    background-image: linear-gradient(rgba(0,0,0,0), rgba(0,0,0,0.42)), url('../../images/background.jpeg');

    background-size: cover;
    background-position: center;
    background-attachment: fixed; 
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--overlay-dark);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: white;
    max-width: 1050px; 
    margin: 0 auto;
}

.hero h1 {
    color: white;
    font-size: clamp(2.4rem, 5.5vw, 4.5rem);
    margin-bottom: 1.5rem;
    line-height: 1.1;
    opacity: 0;
    transform: translateY(30px);
    animation: heroFadeIn 1s var(--ease-luxury) forwards 0.2s;
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
    opacity: 0;
    transform: translateY(30px);
    animation: heroFadeIn 1s var(--ease-luxury) forwards 0.4s;
}

.hero .btn-wrap {
    opacity: 0;
    transform: translateY(30px);
    animation: heroFadeIn 1s var(--ease-luxury) forwards 0.6s;
}

@keyframes heroFadeIn {
    to { opacity: 1; transform: translateY(0); }
}

/* --- ABOUT SECTION --- */
.section {
    padding: var(--spacing-section) 0;
}

section[id] {
    scroll-margin-top: calc(var(--header-height) );
}


.about {
    background: var(--bg-white);
}

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

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #64748b;
}

.about-img-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.about-img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 1.2s var(--ease-luxury);
}

.about-img-wrapper:hover .about-img {
    transform: scale(1.03);
}

/* --- HIGHLIGHTS / VALUE GRID (The "Verdict" System) --- */
.highlights {
    background-color: #f1f5f9;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem; 
}

.section-header h2 {
    font-size: 2.5rem;
}

/* Flex container for the stacking of Pair Groups */
.highlights-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* "Verdict" Card Styling */
.highlight-card {
    background: white;
    padding: 3rem;
    border-radius: 0;
    position: relative;
    overflow: hidden; /* Key for the slide-up reveal */
    cursor: pointer;
    transition: transform 0.5s var(--ease-luxury), box-shadow 0.5s var(--ease-luxury);
    border-bottom: 3px solid transparent;
    height: 320px; /* Fixed height for consistency */
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.highlight-card:hover {
    transform: scale(1.05);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    z-index: 10;
    border-bottom-color: var(--accent-primary);
}

/* Default State: Icon + Title Visible */
.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent-primary);
    transition: transform 0.5s var(--ease-luxury);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 0;
    transition: transform 0.5s var(--ease-luxury);
}

/* Hidden State: Description */
.card-desc {
    margin-top: 1rem;
    font-size: 1rem;
    color: #64748b;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s var(--ease-luxury), transform 0.4s var(--ease-luxury);
    position: absolute;
    bottom: 3rem;
    left: 3rem;
    right: 3rem;
}

/* Hover Interaction Logic */
.highlight-card:hover .card-icon {
    transform: translateY(-40px);
}

.highlight-card:hover .card-title {
    transform: translateY(-40px);
}

.highlight-card:hover .card-desc {
    opacity: 1;
    transform: translateY(0);
}

/* --- CONTACT SECTION --- */
.contact {
    background-color: var(--bg-white);
    text-align: center;
}

.contact-grid {
    display: flex;
    justify-content: center;
    gap: 4rem;
    flex-wrap: wrap;
    margin-top: 3rem;
}

.contact-item {
    flex: 1;
    min-width: 250px;
    max-width: 300px;
    padding: 2rem;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    transition: transform 0.3s var(--ease-luxury), box-shadow 0.3s var(--ease-luxury);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none !important;
}

.contact-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: var(--accent-primary);
}

.contact-icon {
    font-size: 3rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
    transition: transform 0.3s var(--ease-luxury);
}

.contact-item:hover .contact-icon {
    transform: scale(1.1);
}

.contact-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-heading);
}

.contact-item p {
    color: #64748b;
    font-size: 0.95rem;
}

/* --- ANIMATION CLASSES (JS Controlled) --- */
/* Grouping wrapper must be a GRID for the 2-column layout to appear */
.pair-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

/* Initial State for JS to grab */
.reveal-item {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s var(--ease-luxury), transform 0.8s var(--ease-luxury);
}

/* Active State */
.reveal-visible .reveal-item {
    opacity: 1;
    transform: translateY(0);
}

/* --- FOOTER --- */
footer {
    background-color: var(--text-heading);
    color: #94a3b8;
    padding: 4rem 0 2rem;
    text-align: center;
}

.footer-logo {
    font-size: 1.5rem;
    color: white;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.copyright {
    font-size: 0.875rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
}

/* --- RESPONSIVE & ACCESSIBILITY --- */
@media (max-width: 768px) {
    .navbar .nav-links {
        display: none; /* Simplified for this demo */
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .pair-group {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .highlight-card {
        height: auto;
        padding: 2.5rem;
        min-height: 250px;
    }

    .contact-grid {
        gap: 2rem;
    }
}

@media (hover: none) {
    .card-icon, .card-title {
        transform: translateY(0) !important;
        margin-bottom: 1rem;
    }
    
    .card-desc {
        position: static;
        opacity: 1 !important;
        transform: translateY(0) !important;
        margin-top: 0.5rem;
    }

    .highlight-card:hover {
        transform: none;
    }
}

/* MOBILE NAV */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    margin: 5px 0;
    background: var(--text-heading);
}

/* Overlay */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 998;
}

/* Drawer */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    max-width: 320px;
    height: 100vh;
    background: white;
    z-index: 999;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transition: right 0.3s ease;
}

.mobile-menu a {
    font-size: 1.1rem;
    font-weight: 600;
}

.close-menu {
    align-self: flex-end;
    font-size: 2rem;
    background: none;
    border: none;
    cursor: pointer;
}

/* Active state */
.menu-open .mobile-menu {
    right: 0;
}

.menu-open .mobile-menu-overlay {
    opacity: 1;
    pointer-events: auto;
}

/* Scroll lock */
body.menu-open {
    overflow: hidden;
}

/* Mobile only */
@media (max-width: 768px) {
    .desktop-nav {
        display: none;
    }

    .hamburger {
        display: block;
    }
}

/* ================= MOBILE HERO FIX ================= */
@media (max-width: 768px) {
    .hero {
        height: 85vh;          /* Fix mobile viewport bug */
        min-height: 520px;     /* Prevent over-collapse */
        background-attachment: scroll; /* Fix iOS jitter */
    }

    .hero h1 {
        font-size: 2.2rem;     /* Already correct, reaffirm */
        line-height: 1.15;
    }

    .hero p {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
}

/* ================= MOBILE SECTION SPACING ================= */
@media (max-width: 768px) {
    :root {
        --spacing-section: 80px; /* Reduce vertical gaps on mobile */
    }
}

.whatsapp-icon {
    width: 48px;
    height: 48px;
    object-fit: contain;
    filter: invert(48%) sepia(90%) saturate(600%) hue-rotate(85deg);
}

.disclaimer {
    font-size: 0.8rem;
    opacity: 0.7;
    margin-top: 1rem;
}