/* ==========================================
   CSS Variables & Base Styles
   ========================================== */

:root {
    /* Colors */
    --primary-color: #1a1a2e;
    --secondary-color: #0f1419;
    --accent-color: #00d4ff;
    --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #00ff88 100%);
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --text-dark: #1a1a2e;
    --text-light: #6c757d;
    --text-white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 12px 40px rgba(0, 212, 255, 0.2);

    /* Spacing (8px base unit system) */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;

    /* Border Radius */
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;

    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;

    /* Transitions */
    --transition-base: 0.3s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-primary);
    line-height: var(--line-height-base);
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==========================================
   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, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

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

/* ==========================================
   Buttons
   ========================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
    font-size: 1rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

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

.btn-submit {
    width: 100%;
    margin-top: var(--spacing-sm);
}

/* ==========================================
   Header & Navigation
   ========================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-sm) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
    text-decoration: none;
}

.logo i {
    color: var(--accent-color);
    font-size: 2rem;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--accent-color);
}

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

.cta-btn {
    padding: 12px var(--spacing-md);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-white);
    border-radius: 3px;
    transition: all var(--transition-base);
}

/* ==========================================
   Hero Section
   ========================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 255, 136, 0.1) 0%, transparent 50%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.9) 0%, rgba(15, 20, 25, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--text-white);
    padding: var(--spacing-2xl) 0;
}

.hero-title {
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.trust-indicators {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-2xl);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.trust-item i {
    font-size: 2rem;
    color: var(--accent-color);
}

.trust-item span {
    font-weight: 600;
}

/* ==========================================
   Section Styles
   ========================================== */

section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* ==========================================
   Services Section
   ========================================== */

.services {
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

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

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.service-icon i {
    font-size: 2.5rem;
    color: var(--text-white);
}

.service-title {
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.service-list {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.service-list li {
    padding: var(--spacing-xs) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-light);
}

.service-list i {
    color: var(--accent-color);
}

.service-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: gap var(--transition-base);
}

.service-link:hover {
    gap: var(--spacing-sm);
}

/* ==========================================
   About Section
   ========================================== */

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-item {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.about-item h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.about-item h3 i {
    color: var(--accent-color);
}

.about-item p {
    color: var(--text-light);
    line-height: 1.8;
}

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

.about-image-placeholder {
    width: 100%;
    height: 500px;
    background: var(--accent-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.about-image-placeholder i {
    font-size: 8rem;
    color: var(--text-white);
    opacity: 0.5;
}

/* ==========================================
   Core Values Section
   ========================================== */

.values {
    background: var(--bg-light);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.value-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    text-align: center;
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.value-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(0, 255, 136, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.value-icon i {
    font-size: 2rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.value-card h3 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.value-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ==========================================
   Why Choose Us Section
   ========================================== */

.why-choose {
    background:
        linear-gradient(135deg, rgba(26, 26, 46, 0.95) 0%, rgba(15, 20, 25, 0.95) 100%),
        url('../images/pattern-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--text-white);
}

.why-choose .section-title,
.why-choose .section-subtitle {
    color: var(--text-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.stat-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.stat-icon i {
    font-size: 2.5rem;
    color: var(--text-white);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
}

/* ==========================================
   Clients Section
   ========================================== */

.clients {
    background: var(--bg-light);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.client-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all var(--transition-base);
}

.client-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.client-card i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.client-card h3 {
    color: var(--text-dark);
    font-size: 1.2rem;
}

/* ==========================================
   Contact Section
   ========================================== */

.contact-info-centered {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-form-wrapper {
    background: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #dc3545;
}

.error-message {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    display: block;
}

.form-status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    text-align: center;
    display: none;
}

.form-status.success {
    background: #d4edda;
    color: #155724;
    display: block;
}

.form-status.error {
    background: #f8d7da;
    color: #721c24;
    display: block;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-info-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.5rem;
    color: var(--text-white);
}

.contact-details h4 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

.contact-details p {
    color: var(--text-light);
    margin-bottom: 0;
}

.contact-details a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

.social-links-centered {
    text-align: center;
    grid-column: 1 / -1;
    margin-top: var(--spacing-md);
}

.social-links-centered h4 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    text-decoration: none;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--accent-gradient);
    color: var(--text-white);
    transform: translateY(-3px);
}

.map-placeholder {
    background: var(--bg-light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    text-align: center;
    margin-top: var(--spacing-md);
}

.map-placeholder i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
}

.map-placeholder p {
    color: var(--text-light);
    margin-bottom: 0;
}

/* ==========================================
   Footer
   ========================================== */

.footer {
    background: var(--primary-color);
    color: var(--text-white);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-logo i {
    color: var(--accent-color);
    font-size: 2rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.footer-tagline {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background: rgba(0, 212, 255, 0.1);
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-tagline i {
    color: var(--accent-color);
}

.footer-col h4 {
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
}

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

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

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

.footer-links i {
    font-size: 0.75rem;
}

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

.footer-contact li {
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact i {
    color: var(--accent-color);
    margin-top: 3px;
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

.footer-bottom-links span {
    color: rgba(255, 255, 255, 0.5);
}

/* ==========================================
   Back to Top Button
   ========================================== */

.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: var(--text-white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* ==========================================
   WhatsApp Floating Button
   ========================================== */

.whatsapp-float {
    position: fixed;
    bottom: calc(var(--spacing-lg) + 70px);
    right: var(--spacing-lg);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #25D366;
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    z-index: 999;
    transition: all var(--transition-base);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.whatsapp-float i {
    font-size: 2rem;
}

/* ==========================================
   Utility Classes
   ========================================== */

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

.mb-0 {
    margin-bottom: 0;
}