/* ===== CSS RESET & BASE STYLES ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Color Palette - Based on CarvinTech branding */
    --primary-purple: #5b21b6;
    --primary-purple-dark: #4c1d95;
    --primary-purple-light: #7c3aed;
    --secondary-indigo: #4f46e5;
    --secondary-indigo-dark: #3730a3;
    --accent-orange: #f59e0b;
    --accent-orange-dark: #d97706;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --black: #000000;
    
    /* Success/Error Colors */
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    outline: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--primary-purple-dark) 100%);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-purple-light) 0%, var(--primary-purple) 100%);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 2px solid var(--gray-200);
}

.btn-secondary:hover {
    background: var(--gray-200);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-purple);
    border: 2px solid var(--primary-purple);
}

.btn-outline:hover {
    background: var(--primary-purple);
    color: var(--white);
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    background: var(--gray-900);
    border-bottom: 1px solid var(--gray-700);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(10px);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) 0;
    position: relative;
}

.navbar-brand .logo {
    height: 48px;
    width: auto;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    list-style: none;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--gray-300);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
}

.nav-link:hover {
    color: var(--white);
    background-color: var(--gray-800);
}

/* Dropdown Styles */
.dropdown {
    position: relative;
}

.dropdown-toggle i {
    transition: var(--transition);
    margin-left: var(--space-1);
}

.dropdown.active .dropdown-toggle i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--gray-800);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-700);
    min-width: 280px;
    padding: var(--space-4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: var(--z-dropdown);
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: var(--space-3);
    color: var(--gray-300);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition);
    margin-bottom: var(--space-2);
}

.dropdown-item:hover {
    background-color: var(--gray-700);
    color: var(--white);
}

.dropdown-item-content {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.dropdown-icon {
    width: 24px;
    height: 24px;
    color: var(--primary-purple);
    flex-shrink: 0;
}

.dropdown-item strong {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.dropdown-item p {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin: 0;
}

/* Mobile Menu Toggle */
.navbar-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.navbar-toggle:hover {
    background-color: var(--gray-800);
}

.hamburger-line {
    width: 24px;
    height: 3px;
    background-color: var(--gray-300);
    border-radius: 2px;
    transition: var(--transition);
}

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

.navbar-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

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

/* ===== HERO SECTION ===== */
.hero {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: var(--white);
    padding: var(--space-24) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/images/bg1.jpg') center/cover;
    opacity: 0.1;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    /* grid-template-columns: 1fr 1fr; */
    gap: var(--space-16);
    align-items: center;
}

.hero-text h1 {
    font-size: var(--font-size-6xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-300) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: var(--font-size-xl);
    color: var(--gray-300);
    margin-bottom: var(--space-8);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    padding-bottom: 1rem;
}

.hero-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

/* ===== SERVICES SECTION ===== */
.services {
    padding: var(--space-24) 0;
    background-color: var(--gray-50);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
}

.section-description {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    max-width: 800px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-8);
}

.service-card {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--primary-purple-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    box-shadow: var(--shadow-lg);
}

.service-icon i {
    font-size: var(--font-size-2xl);
    color: var(--white);
}

.service-card h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
}

.service-card p {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.service-features {
    list-style: none;
    text-align: left;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    color: var(--gray-700);
}

.service-features li i {
    color: var(--success);
    font-size: var(--font-size-sm);
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: var(--space-24) 0;
    background-color: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.about-text h2 {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--space-6);
}

.about-text p {
    color: var(--gray-600);
    font-size: var(--font-size-lg);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.stat-item {
    text-align: center;
    padding: var(--space-4);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--primary-purple);
    display: block;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: 600;
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: var(--space-24) 0;
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--primary-purple-dark) 100%);
    color: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.contact-info h2 {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--space-6);
}

.contact-info p {
    font-size: var(--font-size-lg);
    color: var(--gray-300);
    margin-bottom: var(--space-8);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.contact-item i {
    width: 24px;
    color: var(--accent-orange);
}

.contact-item a {
    color: var(--white);
    text-decoration: none;
}

.contact-item a:hover {
    color: var(--accent-orange);
}

.contact-form {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-family: inherit;
    background: var(--white);
    color: var(--gray-900);
    transition: var(--transition);
    outline: none;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 3px rgba(91, 33, 182, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-brand {
    margin-bottom: var(--space-6);
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: var(--space-4);
}

.footer-description {
    color: var(--gray-400);
    line-height: 1.7;
}

.footer-title {
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

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

.footer-links li {
    margin-bottom: var(--space-2);
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

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

.contact-info {
    margin-bottom: var(--space-6);
}

.social-links {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    color: var(--gray-400);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-purple);
    color: var(--white);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex: 1;
    gap: var(--space-4);
}

.footer-bottom-links {
    display: flex;
    gap: var(--space-6);
}

.footer-bottom-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition);
}

.footer-bottom-links a:hover {
    color: var(--white);
}

.powered-by-section {
    flex-shrink: 0;
}

.powered-by-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4);
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-700) 100%);
    border-radius: var(--radius-xl);
    border: 2px solid var(--gray-600);
    box-shadow: var(--shadow-lg);
    min-width: 150px;
    transition: var(--transition);
}

.powered-by-content:hover {
    transform: translateY(-2px);
    border-color: var(--gray-500);
}

.powered-by-text {
    font-size: var(--font-size-xs);
    color: var(--gray-300);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.powered-by-link {
    text-decoration: none;
    display: block;
    transition: var(--transition);
}

.powered-by-logo {
    height: 24px;
    width: auto;
    filter: brightness(1.2);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .hero-content,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-12);
        text-align: center;
    }
    
    .footer-main {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    /* Hide desktop navigation menu by default */
    .navbar-menu {
        display: none !important;
    }
    
    /* Show mobile navigation menu when active */
    .navbar-menu.active {
        display: flex !important;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #1f2937 !important;
        flex-direction: column;
        padding: 1.5rem;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        z-index: 9999;
        border-top: 1px solid #374151;
        animation: slideDown 0.3s ease-in-out;
        min-height: 300px;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .navbar-nav {
        display: flex !important;
        flex-direction: column;
        width: 100%;
        gap: 0.5rem;
        margin: 0;
        padding: 0;
        list-style: none;
    }
    
    .nav-item {
        display: block !important;
        width: 100%;
    }
    
    .nav-link {
        display: flex !important;
        padding: 1rem;
        border-radius: 0.5rem;
        justify-content: flex-start;
        width: 100%;
        color: #f3f4f6 !important;
        text-decoration: none;
        align-items: center;
        gap: 0.5rem;
        font-weight: 500;
        font-size: 1rem;
        background: transparent;
        border: 1px solid transparent;
        transition: all 0.2s ease;
    }
    
    .nav-link:hover,
    .nav-link:focus {
        background-color: #374151 !important;
        color: #ffffff !important;
        border-color: #4b5563;
    }
    
    .navbar-cta {
        margin-top: 1rem;
        width: 100%;
    }
    
    .navbar-cta .btn {
        width: 100%;
        justify-content: center;
        padding: 1rem;
        font-size: 1rem;
    }
    
    .navbar-toggle {
        display: flex;
    }
    
    /* Mobile dropdown styling */
    .dropdown {
        position: relative;
    }
    
    .dropdown-toggle {
        display: flex !important;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }
    
    .dropdown-toggle i {
        margin-left: auto;
        transition: transform 0.2s ease;
    }
    
    .dropdown.active .dropdown-toggle i {
        transform: rotate(180deg);
    }
    
    .dropdown-menu {
        display: none;
        position: static;
        box-shadow: none;
        border: none;
        background: #374151 !important;
        margin-top: 0.5rem;
        border-radius: 0.5rem;
        padding: 0.5rem;
        width: 100%;
    }
    
    .dropdown.active .dropdown-menu {
        display: block !important;
    }
    
    .dropdown-item {
        display: block !important;
        color: #d1d5db !important;
        padding: 0.75rem;
        border-radius: 0.25rem;
        text-decoration: none;
        width: 100%;
    }
    
    .dropdown-item:hover {
        background-color: #4b5563 !important;
        color: #ffffff !important;
    }
    
    .dropdown-item-content {
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }
    
    .dropdown-item-content div {
        flex: 1;
    }
    
    .dropdown-item-content strong {
        display: block;
        margin-bottom: 0.25rem;
        color: #f3f4f6;
    }
    
    .dropdown-item-content p {
        font-size: 0.875rem;
        color: #9ca3af;
        margin: 0;
    }
    
    .hero-text h1 {
        font-size: var(--font-size-4xl);
    }
    
    .section-title {
        font-size: var(--font-size-4xl);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-bottom-content {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-3);
    }
    
    .hero {
        padding: var(--space-16) 0;
    }
    
    .hero-text h1 {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .services,
    .about,
    .contact {
        padding: var(--space-16) 0;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}