/* IRIS InterGroup Website Styles - Enhanced */

/* CSS Variables */
:root {
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray: #8F8F8F;
    --color-gray-light: #F5F5F5;
    --color-gray-dark: #333333;
    --color-blue: #0B85E8;
    --color-blue-dark: #0066CC;
    --color-blue-light: #4DA3F0;
    --font-primary: 'Roboto', sans-serif;
    --font-secondary: 'Raleway', sans-serif;
    --font-serif: 'Cormorant Garamond', serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 30px rgba(11, 133, 232, 0.3);
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-white);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid var(--color-gray-light);
    border-top-color: var(--color-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Scroll Animation Base Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* Stagger delay utilities */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
    padding: 20px 0;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    padding: 10px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-text {
    font-family: var(--font-secondary);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.header.scrolled .logo-text {
    color: var(--color-black);
}

.logo-subtext {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    display: block;
    font-weight: 400;
    letter-spacing: 1px;
}

.header.scrolled .logo-subtext {
    color: var(--color-gray);
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-link {
    font-family: var(--font-secondary);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding: 5px 0;
}

.header.scrolled .nav-link {
    color: var(--color-black);
}

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

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

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 24px;
    cursor: pointer;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.header.scrolled .mobile-menu-btn {
    color: var(--color-black);
}

.header.scrolled .mobile-menu-btn:hover {
    background: var(--color-gray-light);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.5) 100%), 
                url('https://images.unsplash.com/photo-1494412574643-ff11b0a5c1c3?w=1920') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.3) 100%);
    pointer-events: none;
}

.hero-content {
    max-width: 900px;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-secondary);
    font-size: 52px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 4px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
}

.hero-phone {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 40px;
    display: inline-block;
    padding: 15px 30px;
    background: rgba(11, 133, 232, 0.2);
    border: 1px solid rgba(11, 133, 232, 0.4);
    border-radius: 50px;
    backdrop-filter: blur(5px);
    transition: var(--transition);
}

.hero-phone:hover {
    background: rgba(11, 133, 232, 0.4);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(11, 133, 232, 0.3);
}

.hero-phone i {
    margin-right: 10px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.hero-services {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 60px;
}

.hero-service-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 30px 20px;
    border-radius: 12px;
    transition: var(--transition);
    cursor: pointer;
}

.hero-service-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(11, 133, 232, 0.5);
}

.hero-service-icon {
    font-size: 40px;
    margin-bottom: 15px;
    color: var(--color-blue);
    transition: var(--transition);
}

.hero-service-card:hover .hero-service-icon {
    transform: scale(1.1);
}

.hero-service-title {
    font-family: var(--font-secondary);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 16px 40px;
    font-family: var(--font-secondary);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: 6px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--color-blue);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(11, 133, 232, 0.4);
}

.btn-primary:hover {
    background: var(--color-blue-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

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

.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-black);
    transform: translateY(-3px);
}

/* Stats Section */
.stats {
    padding: 100px 0;
    background: var(--color-black);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(11, 133, 232, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    position: relative;
    z-index: 1;
}

.stat-item {
    text-align: center;
    padding: 30px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.07);
    transform: translateY(-5px);
    border-color: rgba(11, 133, 232, 0.3);
}

.stat-number {
    font-family: var(--font-secondary);
    font-size: 56px;
    font-weight: 700;
    color: var(--color-blue);
    margin-bottom: 10px;
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.stat-desc {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 10px;
}

/* Section Styles */
.section {
    padding: 120px 0;
}

.section-title {
    font-family: var(--font-secondary);
    font-size: 40px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-gray);
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    font-size: 18px;
}

/* Services Section */
.services {
    background: var(--color-gray-light);
    position: relative;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--color-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition-slow);
    display: flex;
    flex-direction: column;
}

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

.service-image {
    height: 220px;
    background: var(--color-gray) center/cover;
    position: relative;
    overflow: hidden;
}

.service-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.6) 100%);
    transition: var(--transition);
}

.service-card:hover .service-image::after {
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.4) 100%);
}

.service-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-blue);
    opacity: 0;
    transition: var(--transition);
    z-index: 1;
}

.service-card:hover .service-image::before {
    opacity: 0.1;
}

.service-content {
    padding: 35px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.service-title {
    font-family: var(--font-secondary);
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.service-desc {
    color: var(--color-gray);
    line-height: 1.8;
    flex: 1;
}

.service-link {
    margin-top: 25px;
    color: var(--color-blue);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    position: relative;
}

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

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

.service-link i {
    transition: var(--transition);
}

.service-link:hover i {
    transform: translateX(5px);
}

/* Why Choose Us Section */
.why-us {
    background: var(--color-white);
    position: relative;
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.why-us-card {
    text-align: center;
    padding: 40px 25px;
    border-radius: 16px;
    background: var(--color-white);
    border: 1px solid var(--color-gray-light);
    transition: var(--transition);
}

.why-us-card:hover {
    border-color: var(--color-blue);
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.why-us-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 32px;
    color: var(--color-white);
    box-shadow: 0 10px 30px rgba(11, 133, 232, 0.3);
    transition: var(--transition);
}

.why-us-card:hover .why-us-icon {
    transform: scale(1.1) rotate(5deg);
}

.why-us-title {
    font-family: var(--font-secondary);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.why-us-text {
    color: var(--color-gray);
    line-height: 1.7;
    font-size: 15px;
}

/* Service Detail Section (for services page) */
.service-detail {
    padding: 100px 0;
    position: relative;
}

.service-detail:nth-child(even) {
    background: var(--color-gray-light);
}

.service-detail-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.service-detail:nth-child(even) .service-detail-inner {
    direction: rtl;
}

.service-detail:nth-child(even) .service-detail-content {
    direction: ltr;
}

.service-detail-image {
    height: 450px;
    border-radius: 16px;
    overflow: hidden;
    background: var(--color-gray) center/cover;
    box-shadow: var(--shadow-hover);
    transition: var(--transition);
}

.service-detail:hover .service-detail-image {
    transform: scale(1.02);
}

.service-detail-title {
    font-family: var(--font-secondary);
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 25px;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    padding-bottom: 15px;
}

.service-detail-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--color-blue);
}

.service-detail-text {
    color: var(--color-gray);
    line-height: 1.9;
    margin-bottom: 20px;
    font-size: 17px;
}

.service-detail-features {
    list-style: none;
    margin-top: 25px;
}

.service-detail-features li {
    padding: 12px 0;
    padding-left: 35px;
    position: relative;
    color: var(--color-black);
    font-size: 16px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.service-detail-features li:last-child {
    border-bottom: none;
}

.service-detail-features li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--color-blue);
    font-size: 18px;
}

/* Contacts Section */
.contacts {
    background: var(--color-white);
}

.contacts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    padding-right: 40px;
}

.contact-title {
    font-family: var(--font-secondary);
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 30px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.contact-desc {
    color: var(--color-gray);
    line-height: 1.9;
    margin-bottom: 40px;
    font-size: 17px;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px;
    border-radius: 12px;
    transition: var(--transition);
}

.contact-item:hover {
    background: var(--color-gray-light);
}

.contact-icon {
    width: 55px;
    height: 55px;
    background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-dark) 100%);
    color: var(--color-white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(11, 133, 232, 0.3);
    transition: var(--transition);
}

.contact-item:hover .contact-icon {
    transform: scale(1.1) rotate(-5deg);
}

.contact-item-content h4 {
    font-family: var(--font-secondary);
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    color: var(--color-black);
}

.contact-item-content p {
    color: var(--color-gray);
    line-height: 1.6;
}

.contact-item-content a {
    color: var(--color-blue);
    font-weight: 500;
}

.contact-item-content a:hover {
    color: var(--color-blue-dark);
}

.contact-form-wrapper {
    background: var(--color-gray-light);
    padding: 50px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 25px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-gray-dark);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid transparent;
    border-radius: 10px;
    font-family: inherit;
    font-size: 16px;
    transition: var(--transition);
    background: var(--color-white);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-blue);
    box-shadow: 0 0 0 4px rgba(11, 133, 232, 0.1);
}

.form-input.error,
.form-textarea.error {
    border-color: #e74c3c;
    background: #fdf2f2;
}

.form-input.success,
.form-textarea.success {
    border-color: #27ae60;
}

.error-message {
    color: #e74c3c;
    font-size: 13px;
    margin-top: 8px;
    display: none;
}

.error-message.visible {
    display: block;
}

.form-textarea {
    min-height: 140px;
    resize: vertical;
}

.form-status {
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: 500;
    display: none;
}

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

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

/* Coverage Section */
.coverage {
    padding: 80px 0;
    background: var(--color-black);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.coverage::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 70% 50%, rgba(11, 133, 232, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.coverage-title {
    font-family: var(--font-secondary);
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 30px;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.coverage-text {
    text-align: center;
    color: var(--color-gray);
    margin-bottom: 40px;
    line-height: 1.8;
    font-size: 18px;
}

.coverage-countries {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.country-tag {
    background: rgba(255, 255, 255, 0.08);
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    cursor: default;
}

.country-tag:hover {
    background: rgba(11, 133, 232, 0.3);
    border-color: rgba(11, 133, 232, 0.5);
    transform: translateY(-3px);
}

/* Footer */
.footer {
    background: linear-gradient(180deg, #0a0a0a 0%, #000000 100%);
    color: var(--color-white);
    padding: 80px 0 30px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(11, 133, 232, 0.5), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-logo {
    font-family: var(--font-secondary);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 25px;
    text-transform: uppercase;
    letter-spacing: 2px;
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-blue-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-desc {
    color: var(--color-gray);
    line-height: 1.9;
    margin-bottom: 25px;
    font-size: 15px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: var(--color-blue);
    transform: translateY(-5px);
    border-color: var(--color-blue);
    box-shadow: 0 10px 25px rgba(11, 133, 232, 0.4);
}

.footer-title {
    font-family: var(--font-secondary);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 25px;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    padding-bottom: 15px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--color-blue);
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--color-gray);
    transition: var(--transition);
    display: inline-block;
    position: relative;
}

.footer-links a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-blue);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-white);
    padding-left: 10px;
}

.footer-links a:hover::before {
    width: 100%;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-copyright {
    color: var(--color-gray);
    font-size: 14px;
}

/* Page Banner */
.page-banner {
    height: 450px;
    background: linear-gradient(135deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.65) 100%), 
                url('https://images.unsplash.com/photo-1578575437130-527eed3abbec?w=1920') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-white);
    margin-top: 0;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.3) 100%);
    pointer-events: none;
}

.page-banner-title {
    font-family: var(--font-secondary);
    font-size: 56px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 4px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
}

/* Breadcrumbs */
.breadcrumbs {
    background: var(--color-gray-light);
    padding: 20px 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.breadcrumbs-list {
    display: flex;
    align-items: center;
    gap: 15px;
    list-style: none;
    font-size: 14px;
}

.breadcrumbs-list a {
    color: var(--color-gray);
    transition: var(--transition);
}

.breadcrumbs-list a:hover {
    color: var(--color-blue);
}

.breadcrumbs-list .separator {
    color: var(--color-gray);
}

.breadcrumbs-list .current {
    color: var(--color-black);
    font-weight: 500;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--color-blue);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 5px 20px rgba(11, 133, 232, 0.4);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-blue-dark);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(11, 133, 232, 0.5);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .why-us-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-detail-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .service-detail:nth-child(even) .service-detail-inner {
        direction: ltr;
    }
    
    .contacts-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .contact-info {
        padding-right: 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        left: 20px;
        right: 20px;
        background: var(--color-white);
        flex-direction: column;
        padding: 25px;
        gap: 15px;
        box-shadow: var(--shadow-hover);
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition);
        border-radius: 16px;
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-link {
        color: var(--color-black);
        font-size: 16px;
        padding: 12px;
        border-radius: 8px;
    }
    
    .nav-link:hover {
        background: var(--color-gray-light);
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 32px;
        letter-spacing: 2px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-phone {
        font-size: 24px;
        padding: 12px 25px;
    }
    
    .hero-services {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .hero-service-card {
        padding: 25px 15px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .stat-number {
        font-size: 40px;
    }
    
    .stat-item {
        padding: 25px 15px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .why-us-grid {
        grid-template-columns: 1fr;
    }
    
    .service-detail-image {
        height: 300px;
    }
    
    .service-detail-title {
        font-size: 26px;
    }
    
    .contact-form-wrapper {
        padding: 30px 25px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .page-banner {
        height: 350px;
    }
    
    .page-banner-title {
        font-size: 36px;
    }
}

@media (max-width: 480px) {
    .hero-services {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        padding: 14px 30px;
        font-size: 13px;
    }
    
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}