/* 
 * Dream Team Services - Main Stylesheet
 * Designed with inspiration from premium reference sites 
 * including deven.ai, Google DeepMind, Netflix, x.ai, SpaceX, Tesla, and Neuralink
 */

/* ========== Base Styles ========== */
:root {
    /* Color palette - Light mode */
    --primary: #0066ff;
    --primary-dark: #0052cc;
    --primary-light: #4d94ff;
    --secondary: #6c63ff;
    --accent: #00c2ff;
    --dark: #121212;
    --dark-medium: #212121;
    --gray-dark: #333333;
    --gray-medium: #666666;
    --gray-light: #999999;
    --light: #f7f7f7;
    --white: #ffffff;
    --success: #00d97e;
    --warning: #ffab00;
    --error: #ff5252;
    
    /* Dynamic theme variables */
    --bg-primary: #ffffff;
    --bg-secondary: #f7f7f7;
    --bg-tertiary: #f0f0f0;
    --bg-card: #ffffff;
    --text-primary: #121212;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --border-color: rgba(0, 0, 0, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.15);
    --input-bg: #ffffff;
    --hero-overlay: linear-gradient(135deg, rgba(12, 12, 24, 0.9) 0%, rgba(33, 33, 78, 0.8) 100%);
    --service-overlay: linear-gradient(135deg, rgba(0, 10, 30, 0.9) 0%, rgba(2, 13, 33, 0.85) 100%);
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-secondary: 'Poppins', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.3);
    
    /* 3D Properties */
    --card-radius: 1.5rem;
    --perspective: 1000px;
    --rotation-amount: 5deg;
    
    /* Theme transition */
    --theme-transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Dark mode theme */
[data-theme="dark"] {
    --bg-primary: #121212;
    --bg-secondary: #1f1f1f;
    --bg-tertiary: #2d2d2d;
    --bg-card: #252525;
    --text-primary: #ffffff;
    --text-secondary: #bbbbbb;
    --text-tertiary: #888888;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.5);
    --input-bg: #2d2d2d;
    --hero-overlay: linear-gradient(135deg, rgba(5, 5, 15, 0.95) 0%, rgba(15, 15, 40, 0.9) 100%);
    --service-overlay: linear-gradient(135deg, rgba(0, 5, 15, 0.95) 0%, rgba(1, 7, 20, 0.9) 100%);
    
    /* Dark mode specific shadows */
    --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6);
}

/* Base element styles with theme variables */
body {
    font-family: var(--font-primary);
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    transition: var(--theme-transition);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2rem;
    color: var(--text-primary);
    transition: var(--theme-transition);
}

p {
    color: var(--text-secondary);
    margin-bottom: 1.6rem;
    transition: var(--theme-transition);
}

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

a:hover {
    color: var(--primary-dark);
}

/* ========== Theme Toggle ========== */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--white);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    margin-left: 1.5rem;
    transition: all var(--transition-medium);
}

.theme-toggle:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    background-color: var(--primary);
}

.theme-toggle i {
    font-size: 1.8rem;
    transition: transform 0.5s ease, opacity 0.3s ease;
}

.theme-toggle .fa-sun {
    position: absolute;
    opacity: 1;
    transform: translateY(0);
}

.theme-toggle .fa-moon {
    position: absolute;
    opacity: 0;
    transform: translateY(20px);
}

[data-theme="dark"] .theme-toggle .fa-sun {
    opacity: 0;
    transform: translateY(-20px);
}

[data-theme="dark"] .theme-toggle .fa-moon {
    opacity: 1;
    transform: translateY(0);
}

/* ========== Theme Toggle Enhanced ========== */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4.2rem;
    height: 4.2rem;
    border-radius: 50%;
    background-color: var(--primary);
    border: 2px solid var(--primary);
    color: var(--white);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    margin-left: 1.5rem;
    z-index: 1001;
    transition: all var(--transition-medium);
    box-shadow: 0 0 15px rgba(0, 102, 255, 0.5);
    animation: pulsate 2s infinite alternate ease-in-out;
}

@keyframes pulsate {
    0% { box-shadow: 0 0 10px rgba(0, 102, 255, 0.5); }
    100% { box-shadow: 0 0 20px rgba(0, 102, 255, 0.8), 0 0 30px rgba(0, 102, 255, 0.4); }
}

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

.theme-toggle:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 0 20px rgba(0, 102, 255, 0.8), 0 0 30px rgba(0, 102, 255, 0.5);
}

.theme-toggle i {
    font-size: 1.8rem;
    transition: transform 0.5s ease, opacity 0.3s ease;
}

.theme-toggle .fa-sun {
    position: absolute;
    opacity: 1;
    transform: translateY(0);
}

.theme-toggle .fa-moon {
    position: absolute;
    opacity: 0;
    transform: translateY(20px);
}

[data-theme="dark"] .theme-toggle .fa-sun {
    opacity: 0;
    transform: translateY(-20px);
}

[data-theme="dark"] .theme-toggle .fa-moon {
    opacity: 1;
    transform: translateY(0);
}

/* Make theme toggle more visible in mobile view */
@media screen and (max-width: 992px) {
    .theme-toggle {
        position: fixed;
        top: 2rem;
        right: 8rem;
        z-index: 1002; /* Higher than other elements */
        width: 5rem;
        height: 5rem;
    }
    
    .theme-toggle i {
        font-size: 2.2rem;
    }
    
    #navbar.scrolled .theme-toggle {
        top: 1.5rem;
    }
}

/* Enhanced scroll progress indicator with theme support */
.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    z-index: 1010;
    transition: opacity 0.3s ease, width 0.1s ease;
}

/* Theme transition for all elements */
html {
    transition: var(--theme-transition);
}

body * {
    transition: var(--theme-transition);
}

/* Improved testimonial card theming */
.testimonial-content {
    color: var(--text-primary);
    transition: var(--theme-transition);
}

.author-info h4 {
    color: var(--text-primary);
    transition: var(--theme-transition);
}

/* Update modal theming */
.modal-content {
    background-color: var(--bg-card);
    transition: var(--theme-transition);
}

.auth-form h3 {
    color: var(--text-primary);
}

/* ========== Loading Animations ========== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-primary);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-spinner {
    position: relative;
    width: 10rem;
    height: 10rem;
}

.loading-spinner .spinner-element {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 4px solid transparent;
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.loading-spinner .spinner-element:nth-child(1) {
    animation-delay: -0.45s;
}

.loading-spinner .spinner-element:nth-child(2) {
    animation-delay: -0.3s;
}

.loading-spinner .spinner-element:nth-child(3) {
    animation-delay: -0.15s;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.content-loader {
    position: relative;
    overflow: hidden;
    background-color: var(--bg-tertiary);
    border-radius: var(--card-radius);
}

.content-loader::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg, 
                transparent, 
                rgba(255, 255, 255, 0.2), 
                transparent);
    animation: shimmer 2s infinite;
}

.loader-text {
    height: 2rem;
    margin-bottom: 1rem;
    width: 90%;
    border-radius: 4px;
}

.loader-heading {
    height: 3rem;
    margin-bottom: 2rem;
    width: 70%;
    border-radius: 4px;
}

/* ========== Advanced 3D Effects ========== */
.tilt-card {
    perspective: var(--perspective);
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.2, 0.85, 0.4, 1);
}

.tilt-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.2, 0.85, 0.4, 1);
}

.tilt-card:hover .tilt-card-inner {
    transform: rotateY(8deg) rotateX(-2deg);
}

.tilt-card-3d-layer {
    position: absolute;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
}

.tilt-card-3d-layer:nth-child(1) {
    transform: translateZ(20px);
}

.tilt-card-3d-layer:nth-child(2) {
    transform: translateZ(10px);
}

.tilt-card-3d-layer:nth-child(3) {
    transform: translateZ(0px);
}

.glow-effect {
    position: relative;
    transition: box-shadow var(--transition-medium);
}

.glow-effect::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(45deg, var(--primary), var(--secondary), var(--accent));
    z-index: -1;
    border-radius: calc(var(--card-radius) + 5px);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.glow-effect:hover::before {
    opacity: 1;
    animation: gradientShift 3s ease infinite;
}

/* Custom animated background for sections */
.animated-bg {
    position: relative;
    overflow: hidden;
}

.animated-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, var(--primary-light) 0%, transparent 70%);
    opacity: 0.05;
    z-index: -1;
    transform: scale(0.8);
    filter: blur(60px);
    animation: pulse-bg 12s infinite alternate ease-in-out;
}

@keyframes pulse-bg {
    0% {
        transform: scale(0.8) translate(-5%, -5%);
    }
    50% {
        transform: scale(1.2) translate(5%, 5%);
    }
    100% {
        transform: scale(0.8) translate(-5%, -5%);
    }
}

/* ========== Enhanced Button Effects ========== */
.btn-3d {
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    transform: translateZ(0);
    backface-visibility: hidden;
}

.btn-3d:hover {
    transform: translateY(-5px) translateZ(10px);
}

.btn-3d:active {
    transform: translateY(-2px) translateZ(5px);
}

.btn-3d::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: inherit;
    border-radius: inherit;
    transform: translateZ(-10px);
    filter: blur(10px) opacity(0.6);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn-3d:hover::before {
    transform: translateZ(-15px);
    filter: blur(15px) opacity(0.8);
}

/* Apply theme to existing UI elements */
.service-card {
    background-color: var(--bg-card);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium), background-color 0.3s ease;
}

.nav-link {
    color: var(--white); /* Keep navbar links white for visibility */
    transition: all var(--transition-medium), color 0.3s ease;
}

.parallax-background {
    transition: filter 0.3s ease;
}

[data-theme="dark"] .parallax-background {
    filter: brightness(0.7) saturate(1.2);
}

.overlay {
    background: var(--service-overlay);
    transition: background 0.3s ease;
}

.testimonial-card {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    color: var(--text-primary);
    transition: var(--theme-transition);
}

/* Update form elements for theme compatibility */
.form-group input,
.form-group select,
.form-group textarea {
    background-color: var(--input-bg);
    color: var (--text-primary);
    border: 1px solid var(--border-color);
    transition: var(--theme-transition);
}

.form-group label {
    color: var(--text-primary);
    transition: var(--theme-transition);
}

/* ========== Advanced Particle Background ========== */
.particle-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

/* ========== Scroll Animations Enhancements ========== */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s cubic-bezier(0.5, 0, 0, 1), 
                transform 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s cubic-bezier(0.5, 0, 0, 1), 
                transform 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s cubic-bezier(0.5, 0, 0, 1), 
                transform 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal-left.visible,
.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.stagger-item {
    opacity: 0;
    transition: opacity 0.5s ease, transform 0.5s ease;
}

/* ========== Advanced cursor effects ========== */
.custom-cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: rgba(0, 102, 255, 0.5);
    transform: translate(-50%, -50%) scale(1);
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
    transition: transform 0.1s ease;
}

.custom-cursor-follower {
    position: fixed;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--primary);
    transform: translate(-50%, -50%) scale(1);
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.3s ease, opacity 0.3s ease, width 0.2s ease, height 0.2s ease;
}

/* Update content sections with theme support */
.services-overview {
    background-color: var(--bg-primary);
    transition: var(--theme-transition);
}

.about-section {
    background-color: var(--bg-secondary);
    transition: var(--theme-transition);
}

.testimonials-section {
    background-color: var(--bg-primary);
    transition: var(--theme-transition);
}

.contact-section {
    background-color: var(--bg-secondary);
    transition: var(--theme-transition);
}

/* Enhanced scrollbar for theme support */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    transition: var(--theme-transition);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 6px;
    border: 3px solid var(--bg-secondary);
    transition: var(--theme-transition);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ========== Existing Animations ========== */
/* ========== Navigation ========== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent;
    padding: 2rem 0;
    transition: all var(--transition-medium);
}

#navbar.scrolled {
    background-color: rgba(18, 18, 18, 0.95);
    padding: 1.5rem 0;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

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

.logo a {
    font-family: var(--font-secondary);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 0.5px;
}

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

.nav-link {
    color: var(--white);
    font-size: 1.6rem;
    font-weight: 500;
    margin: 0 1.5rem;
    padding: 0.8rem 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width var(--transition-medium);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.login-btn {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--white);
    padding: 0.8rem 2rem;
    border-radius: 3rem;
    font-weight: 600;
    margin-left: 1.5rem;
    transition: all var(--transition-fast);
}

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

.menu-toggle {
    display: none;
    cursor: pointer;
}

.hamburger, 
.hamburger::before, 
.hamburger::after {
    content: '';
    display: block;
    width: 2.5rem;
    height: 2px;
    background-color: var(--white);
    position: relative;
    transition: all var(--transition-medium);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 6px;
}

/* ========== Hero Section ========== */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-background video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(12, 12, 24, 0.9) 0%, rgba(33, 33, 78, 0.8) 100%);
}

.hero-content {
    max-width: 900px;
    padding: 0 3rem;
    animation: fadeIn 1.2s ease-out, slideUp 1.2s ease-out;
}

.hero-title {
    color: var(--white);
    font-size: 7rem;
    font-weight: 800;
    margin-bottom: 2rem;
    line-height: 1.1;
    letter-spacing: -0.5px;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 2.4rem;
    font-weight: 400;
    margin-bottom: 4rem;
    max-width: 80%;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1.5rem 3.5rem;
    border-radius: 5rem;
    font-size: 1.8rem;
    font-weight: 600;
    text-align: center;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

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

.cta-button:hover::before {
    transform: scale(1.05);
}

.cta-button {
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.cta-button.secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.cta-button.secondary::before {
    opacity: 0;
}

.cta-button.secondary:hover {
    color: var(--dark);
    border-color: var(--white);
}

.cta-button.secondary:hover::before {
    opacity: 1;
    background: var(--white);
}

.scroll-indicator {
    position: absolute;
    bottom: 5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--white);
    animation: float 2s infinite ease-in-out;
}

.scroll-text {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.scroll-arrow {
    width: 2rem;
    height: 2rem;
    border-right: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(45deg);
    opacity: 0.8;
}

/* ========== Services Overview ========== */
.services-overview {
    padding: 12rem 0;
    background-color: var(--bg-primary);
    transition: var(--theme-transition);
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    margin-top: 6rem;
}

.service-card {
    background-color: var(--bg-card);
    box-shadow: var(--shadow-md);
    padding: 4rem 3rem;
    transition: all var(--transition-medium), background-color 0.3s ease;
    position: relative;
    overflow: hidden;
    text-align: center;
    z-index: 1;
}

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

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card:hover .service-icon,
.service-card:hover h3,
.service-card:hover p,
.service-card:hover .service-link {
    color: var(--white);
}

.service-icon {
    font-size: 4.5rem;
    color: var(--primary);
    margin-bottom: 2.5rem;
    transition: all var(--transition-medium);
}

.service-card h3 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    transition: all var(--transition-medium);
}

.service-card p {
    color: var(--gray-medium);
    margin-bottom: 2.5rem;
    transition: all var(--transition-medium);
}

.service-link {
    font-weight: 600;
    font-size: 1.6rem;
    position: relative;
    transition: all var(--transition-medium);
}

.service-link::after {
    content: '→';
    margin-left: 0.5rem;
    transition: all var(--transition-medium);
}

.service-link:hover::after {
    margin-left: 1rem;
}

/* ========== Service Detail Sections ========== */
.service-detail {
    position: relative;
    padding: 12rem 0;
    color: var(--white);
    overflow: hidden;
}

.parallax-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -2;
    transition: filter 0.3s ease;
}

[data-theme="dark"] .parallax-background {
    filter: brightness(0.7) saturate(1.2);
}

.service-detail:nth-of-type(3) .parallax-background {
    background-image: url('');
}

.service-detail:nth-of-type(4) .parallax-background {
    background-image: url('');
}

.service-detail:nth-of-type(5) .parallax-background {
    background-image: url('');
}

.overlay {
    background: var(--service-overlay);
    transition: background 0.3s ease;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.service-content {
    max-width: 1000px;
    margin: 0 auto;
}

.service-detail h2 {
    color: var(--white);
    font-size: 4.2rem;
    text-align: center;
    margin-bottom: 5rem;
}

.service-description {
    font-size: 1.8rem;
    margin-bottom: 5rem;
}

.service-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 4rem;
    margin: 5rem 0;
}

.feature {
    display: flex;
    align-items: flex-start;
}

.feature-icon {
    font-size: 3rem;
    color: var(--accent);
    margin-right: 2rem;
    flex-shrink: 0;
}

.feature-content h4 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 1rem;
}

.feature-content p {
    color: rgba(255, 255, 255, 0.8);
}

.service-cta {
    text-align: center;
    margin-top: 5rem;
}

/* ========== About Section ========== */
.about-section {
    padding: 12rem 0;
    background-color: var(--bg-secondary);
    transition: var(--theme-transition);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.about-text h2 {
    font-size: 4.2rem;
    margin-bottom: 3rem;
}

.about-text p {
    font-size: 1.8rem;
    color: var(--gray-medium);
    margin-bottom: 2.5rem;
}

.stats-container {
    display: flex;
    justify-content: space-between;
    margin-top: 5rem;
}

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

.stat-item h3 {
    font-size: 4.2rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.about-image {
    position: relative;
}

.image-container {
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.image-container img {
    width: 100%;
    transition: transform var(--transition-medium);
}

.image-container:hover img {
    transform: scale(1.05);
}

/* ========== Testimonials Section ========== */
.testimonials-section {
    padding: 12rem 0;
    background-color: var(--bg-primary);
    transition: var(--theme-transition);
}

.testimonial-slider {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonial-track {
    display: flex;
    transition: transform var(--transition-medium);
}

.testimonial-card {
    min-width: 100%;
    padding: 4rem;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-md);
    color: var(--text-primary);
    transition: var(--theme-transition);
}

.testimonial-content {
    font-size: 2rem;
    font-style: italic;
    color: var(--gray-dark);
    margin-bottom: 3rem;
    position: relative;
}

.testimonial-content::before {
    content: '"';
    font-size: 6rem;
    color: var(--primary-light);
    position: absolute;
    top: -3rem;
    left: -1rem;
    opacity: 0.3;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-image {
    width: 6rem;
    height: 6rem;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 2rem;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.author-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.author-info p {
    font-size: 1.4rem;
    color: var(--gray-medium);
    margin: 0;
}

.testimonial-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 4rem;
}

.control-btn {
    background-color: transparent;
    border: none;
    font-size: 2rem;
    color: var(--gray-medium);
    cursor: pointer;
    padding: 1rem;
    transition: all var(--transition-fast);
}

.control-btn:hover {
    color: var(--primary);
}

.testimonial-dots {
    display: flex;
    gap: 1rem;
    margin: 0 2rem;
}

.dot {
    width: 1.2rem;
    height: 1.2rem;
    border-radius: 50%;
    background-color: var(--gray-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.dot.active {
    background-color: var(--primary);
    transform: scale(1.2);
}

/* ========== Contact Section ========== */
.contact-section {
    padding: 12rem 0;
    background-color: var(--bg-secondary);
    transition: var(--theme-transition);
    position: relative;
    overflow: hidden;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.05) 0%, rgba(108, 99, 255, 0.05) 100%);
    z-index: 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    position: relative;
    z-index: 1;
}

.contact-form-container {
    background-color: var(--white);
    padding: 4rem;
    border-radius: 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-medium);
}

.contact-form-container:hover {
    transform: translateY(-10px);
}

.form-group {
    margin-bottom: 2.5rem;
}

.form-group label {
    display: block;
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 0.8rem;
    color: var(--gray-dark);
    transition: var(--theme-transition);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1.2rem 1.5rem;
    font-size: 1.6rem;
    border: 1px solid var(--border-color);
    border-radius: 0.6rem;
    background-color: var(--input-bg);
    color: var(--text-primary);
    font-family: var(--font-primary);
    transition: all var(--transition-fast), var(--theme-transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(0, 102, 255, 0.2);
    outline: none;
}

.submit-btn {
    width: 100%;
    padding: 1.5rem;
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border: none;
    border-radius: 0.6rem;
    cursor: pointer;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.8s;
}

.submit-btn:hover::before {
    left: 100%;
}

.form-success,
.form-error {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
}

.form-success i,
.form-error i {
    font-size: 5rem;
    margin-bottom: 2rem;
}

.form-success i {
    color: var (--success);
}

.form-error i {
    color: var(--error);
}

.form-success p,
.form-error p {
    font-size: 1.8rem;
    font-weight: 500;
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 4rem;
}

.info-icon {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 2rem;
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
}

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

.info-content h4 {
    font-size: 2rem;
    margin-bottom: 0.8rem;
    color: var(--dark);
}

.info-content p {
    font-size: 1.6rem;
    color: var(--gray-medium);
}

.social-media {
    margin-top: 4rem;
}

.social-media h4 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--dark);
}

.social-icons {
    display: flex;
    gap: 1.5rem;
}

.social-icon {
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 50%;
    background-color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium);
    color: var(--primary);
    font-size: 2rem;
}

.social-icon:hover {
    transform: translateY(-5px);
    color: var(--white);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

/* ========== Footer ========== */
.footer {
    background-color: var(--dark);
    color: var(--white);
    padding: 8rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0) 100%);
    z-index: 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 6rem;
    position: relative;
    z-index: 1;
}

.footer-logo {
    flex: 0 0 100%;
    max-width: 300px;
    margin-bottom: 3rem;
}

.footer-logo h3 {
    font-size: 2.4rem;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.6rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 4rem;
}

.footer-links-column {
    min-width: 150px;
}

.footer-links-column h4 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--white);
    position: relative;
    padding-bottom: 1rem;
}

.footer-links-column h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 3rem;
    height: 2px;
    background-color: var(--primary);
}

.footer-links-column ul li {
    margin-bottom: 1.2rem;
}

.footer-links-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.5rem;
    transition: all var(--transition-fast);
}

.footer-links-column ul li a:hover {
    color: var(--primary);
    padding-left: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.4rem;
}

/* ========== Modal: Login/Signup ========== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    z-index: 1100;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--white);
    width: 100%;
    max-width: 500px;
    border-radius: 1.5rem;
    padding: 4rem;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2.8rem;
    line-height: 1;
    cursor: pointer;
    color: var(--gray-medium);
    transition: all var(--transition-fast);
}

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

.auth-tabs {
    display: flex;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--gray-light);
}

.auth-tab {
    flex: 1;
    padding: 1.5rem;
    text-align: center;
    font-size: 1.8rem;
    font-weight: 600;
    background: transparent;
    border: none;
    color: var(--gray-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.auth-tab.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.auth-form h3 {
    font-size: 2.4rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--dark);
}

.auth-form .form-group {
    margin-bottom: 2rem;
}

.forgot-password {
    font-size: 1.4rem;
    color: var(--gray-medium);
    text-align: right;
    display: block;
    margin-top: 0.5rem;
}

.forgot-password:hover {
    color: var(--primary);
}

.auth-btn {
    width: 100%;
    padding: 1.2rem;
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border: none;
    border-radius: 0.6rem;
    cursor: pointer;
    transition: all var(--transition-medium);
    margin-top: 1rem;
}

.auth-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.auth-social {
    margin-top: 3rem;
    text-align: center;
}

.auth-social p {
    font-size: 1.4rem;
    color: var(--gray-medium);
    margin-bottom: 1.5rem;
    position: relative;
}

.auth-social p::before,
.auth-social p::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 25%;
    height: 1px;
    background-color: var(--gray-light);
}

.auth-social p::before {
    left: 0;
}

.auth-social p::after {
    right: 0;
}

.social-auth-btns {
    display: flex;
    justify-content: center;
}

.google-auth-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-size: 1.6rem;
    font-weight: 500;
    color: var (--gray-dark);
    background-color: var(--white);
    border: 1px solid var(--gray-light);
    border-radius: 0.6rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.google-auth-btn:hover {
    background-color: #f1f1f1;
}

.google-auth-btn i {
    margin-right: 1rem;
    font-size: 1.8rem;
    color: #4285F4;
}

.auth-success {
    text-align: center;
    padding: 2rem;
}

.auth-success i {
    font-size: 5rem;
    color: var(--success);
    margin-bottom: 2rem;
}

.auth-success p {
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--dark);
}

.form-error {
    color: var(--error);
    background-color: rgba(255, 82, 82, 0.1);
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
    font-size: 1.4rem;
    display: none;
}

/* ========== Responsive Design ========== */
@media screen and (max-width: 1200px) {
    html {
        font-size: 56.25%; /* 9px = 1rem */
    }
    
    .hero-title {
        font-size: 6rem;
    }
}

@media screen and (max-width: 992px) {
    html {
        font-size: 50%; /* 8px = 1rem */
    }
    
    .nav-container {
        padding: 0 2rem;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: rgba(18, 18, 18, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: all 0.5s ease;
        z-index: 1000;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-link {
        margin: 2rem 0;
        font-size: 2rem;
    }
    
    .menu-toggle {
        display: block;
        z-index: 1001;
    }
    
    .hamburger.active {
        background-color: transparent;
    }
    
    .hamburger.active::before {
        transform: rotate(45deg);
        top: 0;
    }
    
    .hamburger.active::after {
        transform: rotate(-45deg);
        top: 0;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .about-content .about-image {
        order: -1;
    }
    
    .hero-title {
        font-size: 5.5rem;
    }
    
    .hero-subtitle {
        font-size: 2rem;
    }
    
    .footer-logo {
        margin-bottom: 4rem;
    }
    
    .footer-content {
        flex-direction: column;
    }
}

@media screen and (max-width: 768px) {
    .hero-section {
        min-height: 600px;
    }
    
    .hero-title {
        font-size: 4.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.8rem;
        max-width: 100%;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .cta-button {
        width: 100%;
        text-align: center;
    }
    
    .service-cards {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 90%;
        padding: 3rem 2rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 3rem;
    }
    
    .stats-container {
        flex-direction: column;
        gap: 3rem;
    }
    
    .service-features {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 576px) {
    html {
        font-size: 45%; /* 7.2px = 1rem */
    }
    
    .nav-container .logo a {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .section-title {
        font-size: 3.5rem;
    }
    
    .service-detail h2 {
        font-size: 3.5rem;
    }
    
    .contact-form-container {
        padding: 3rem 2rem;
    }
    
    .info-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .info-icon {
        margin-right: 0;
        margin-bottom: 1.5rem;
    }
    
    .social-media {
        text-align: center;
    }
    
    .social-icons {
        justify-content: center;
    }
    
    .testimonial-card {
        padding: 3rem 2rem;
    }
    
    .testimonial-author {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .author-image {
        margin-right: 0;
        margin-bottom: 1.5rem;
    }
}

/* ========== Animations Enhancements ========== */
@keyframes floatShadow {
    0% {
        transform: translateY(0px);
        box-shadow: var(--shadow-md);
    }
    50% {
        transform: translateY(-10px);
        box-shadow: var(--shadow-lg);
    }
    100% {
        transform: translateY(0px);
        box-shadow: var(--shadow-md);
    }
}

.animate-float {
    animation: floatShadow 4s ease-in-out infinite;
}

@keyframes shimmer {
    0% {
        background-position: -100% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.button-shimmer {
    position: relative;
    overflow: hidden;
}

.button-shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
                               transparent, 
                               rgba(255, 255, 255, 0.2), 
                               transparent);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

/* Deep hover effect for buttons */
.deep-hover {
    transition: all 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
}

.deep-hover:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

/* Glassmorphism effect */
.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 62.5%; /* 10px = 1rem */
}

body {
    font-family: var(--font-primary);
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--gray-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2rem;
    color: var(--dark);
}

h1 {
    font-size: 5.6rem;
}

h2 {
    font-size: 4.2rem;
}

h3 {
    font-size: 3.2rem;
}

h4 {
    font-size: 2.4rem;
}

p {
    margin-bottom: 1.6rem;
}

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

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style: none;
}

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

button, .cta-button {
    cursor: pointer;
    font-family: var(--font-primary);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 3rem;
}

.section-title {
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 800;
}

.section-subtitle {
    text-align: center;
    font-size: 2rem;
    color: var(--gray-medium);
    margin-bottom: 5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ========== Animations ========== */
@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

@keyframes slideUp {
    0% { 
        opacity: 0;
        transform: translateY(40px);
    }
    100% { 
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    0% {
        opacity: 0;
        transform: translateX(50px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}