/* 
========================================
   YellowTechLabs - Design System & Global Styles
========================================
*/

/* 1. Variables & Design Tokens */
:root {
    /* Colors */
    --bg-color: #141414;
    --bg-secondary: #111111;
    --bg-tertiary: #1A1A1A;
    --text-color: #FFFFFF;
    --text-muted: #CCCCCC;
    --primary-color: #FFD700;
    /* Yellow */
    --border-color: #222222;

    /* Typography */
    --font-main: 'Inter', sans-serif;

    /* Spacing */
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Transitions */
    --transition-speed: 0.3s;
    --transition-ease: ease-in-out;

    /* Border Radius */
    --radius-sm: 5px;
    --radius-md: 10px;
    --radius-lg: 20px;
}

/* Hide Scrollbar Globally */
html,
body {
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE/Edge */
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari/Opera */
}

/* 2. Reset & Base Styles */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

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

/* 3. Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 1.75rem);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-muted);
}

.text-center {
    text-align: center;
}

.text-yellow {
    color: var(--primary-color);
}

/* 4. Layout Utilities */
.container {
    max-width: 1400px;
    /* Increased from 1200px */
    margin: 0 auto;
    padding: 0 15px;
    /* Reduced padding */
    width: 100%;
}

.section-padding {
    padding: var(--spacing-lg) 0;
}

.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-5 {
    grid-template-columns: repeat(5, 1fr);
}

.mt-3 {
    margin-top: 3rem;
}

.mt-4 {
    margin-top: 4rem;
}

/* 5. Components */

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: all var(--transition-speed) var(--transition-ease);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #000;
    border-color: var(--primary-color);
}

/* Ensure text remains black even when active (overrides nav link active state) */
.btn-primary.active,
.nav-links a.btn-primary.active {
    color: #000 !important;
}

.nav-links .btn-primary:hover,
.nav-links a.btn-primary.active:hover {
    color: var(--primary-color) !important;
    background-color: transparent !important;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: transparent;
    color: var(--primary-color);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-color);
    border-color: var(--text-color);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--text-color);
    color: #000;
}

/* Navbar */
.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(11px);
    transition: transform var(--transition-speed) var(--transition-ease);
    color: #000;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: #000;
    font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #000;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    min-height: 80vh;
    position: relative;
}

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

.illustration-placeholder {
    background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    position: relative;
}

/* Trust Metrics */
.trust-metrics {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.metric-item i {
    margin-bottom: 1rem;
}

.metric-item h3 {
    margin-bottom: 0.5rem;
    color: #fff;
}

/* Core Services */
.service-card {
    background-color: var(--bg-tertiary);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-speed), border-color var(--transition-speed);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.service-card i {
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* Featured Products - Carousel */
.carousel-container {
    overflow-x: auto;
    padding: 1rem 0;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--bg-secondary);
}

.carousel-container::-webkit-scrollbar {
    height: 8px;
}

.carousel-container::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.carousel-container::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 4px;
}

.carousel-track {
    display: flex;
    gap: 2rem;
    min-width: max-content;
    padding-bottom: 1rem;
}

.product-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    width: 300px;
    padding: 1rem;
    text-align: center;
}

.product-image-placeholder {
    height: 200px;
    background: var(--border-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #555;
    border-radius: var(--radius-sm);
}

/* Case Studies */
.case-study-block {
    align-items: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.case-image-placeholder {
    height: 100%;
    min-height: 300px;
    background: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #555;
}

.case-content {
    padding: 3rem;
}

.result-highlight {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 1rem 0;
}

/* Why Choose Us */
.why-choose-us {
    background-color: #0f0f0f;
}

.icon-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.why-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.05) 0%, rgba(0, 0, 0, 0) 70%);
}

/* Footer */
.footer {
    background-color: #000;
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
}

.footer-col h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.footer-col h4 {
    margin-bottom: 1.5rem;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

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

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    font-size: 1.5rem;
    transition: color var(--transition-speed);
}

.social-icons a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    margin-top: 3rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: #666;
}

/* 6. Responsive Design */
@media (max-width: 992px) {

    .grid-4,
    .grid-5 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3,
    .grid-4,
    .grid-5 {
        grid-template-columns: 1fr;
    }

    .navbar .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--border-color);
    }

    .navbar .nav-links.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero {
        flex-direction: column-reverse;
        text-align: center;
        padding-top: 2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .reverse-layout {
        display: flex;
        flex-direction: column-reverse;
    }

    .illustration-placeholder {
        height: 300px;
        margin-bottom: 2rem;
    }
}

/* Navbar Hidden State */
.navbar.navbar-hidden {
    transform: translateY(-100%);
}

/* 7. Modal Styles */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--primary-color);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    /* Ensure content stays within rounded corners and max-height */
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s;
}

.modal-close:hover {
    color: var(--primary-color);
}

.modal-body {
    overflow-y: auto;
    padding-right: 1rem;
    /* Prevent content from hitting scrollbar */
    flex: 1;
    min-height: 0;
    margin-top: 2rem;
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE/Edge */
}

.modal-body::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari/Opera */
}

.modal-body h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.modal-body p,
.modal-body ul {
    margin-bottom: 1rem;
    color: var(--text-muted);
    text-align: left;
}

.modal-body ul {
    padding-left: 1.5rem;
    list-style-type: disc;
}

/* Timeline Detailed Styles */
.timeline-detailed {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.timeline-year {
    position: relative;
    padding-left: 2rem;
    border-left: 2px solid var(--primary-color);
}

.timeline-year::before {
    content: '';
    position: absolute;
    left: -9px;
    top: 0;
    width: 16px;
    height: 16px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

.timeline-year h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-year ul {
    list-style-type: disc;
    padding-left: 1.5rem;
    margin-top: 0.5rem;
    color: var(--text-muted);
}

.timeline-year strong {
    color: #fff;
}

/* Logo Adjustment for Navbar */
.navbar .logo {
    display: flex;
    align-items: center;
}

.navbar .logo img {
    margin-top: -10px;
    margin-bottom: -10px;
    position: relative;
    z-index: 1001;
}


.modal-body h3 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    text-align: left;
}


/* Font Size Adjustment for Modal */
.modal-body p,
.modal-body ul,
.modal-body li {
    font-size: 0.9rem;
    line-height: 1.5;
}


/* Hide Scrollbar for Modal Content */
.modal-content {
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE/Edge */
}

.modal-content::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari/Opera */
}