/* 
   Longman Ke - Main Stylesheet
   Version: 3.0
*/

/* ===== BASE STYLES ===== */
:root {
    --primary-color: #cc0036;
    --primary-dark: #a3002b;
    --primary-light: #ff1a54;
    --primary-rgb: 204, 0, 54;
    --secondary-color: #1a1a2e;
    --accent-color: #ff6b8a;
    --dark-color: #0f0f1a;
    --dark-gray: #2d2d3a;
    --medium-gray: #6b6b80;
    --light-gray: #f7f7fa;
    --white: #ffffff;
    --danger: #f44336;
    --success: #4caf50;
    --warning: #ff9800;
    --info: #2196f3;
    --font-primary: 'Poppins', sans-serif;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 20px;
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --box-shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
    --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);
}

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

html {
    scroll-behavior: smooth;
    font-size: 62.5%;
}

body {
    font-family: var(--font-primary);
    font-size: 1.6rem;
    line-height: 1.7;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

body::-webkit-scrollbar {
    width: 8px;
}

body::-webkit-scrollbar-track {
    background: var(--light-gray);
}

body::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

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

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

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

ul {
    list-style: none;
}

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

button, input, textarea, select {
    font-family: var(--font-primary);
    font-size: 1.6rem;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 10rem 0;
}

/* ===== PRELOADER ===== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

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

.loader {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.loader svg {
    width: 8rem;
    height: 8rem;
    transform: rotate(-90deg);
}

#loader-circle {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 4;
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    animation: loader 2s linear infinite;
}

@keyframes loader {
    0% { stroke-dashoffset: 200; }
    50% { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -200; }
}

.loader-text {
    margin-top: 1.5rem;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 3px;
}

/* ===== NOTIFICATION POPUP ===== */
.popup {
    position: fixed;
    top: 2rem;
    right: 2rem;
    max-width: 40rem;
    padding: 1.5rem 2rem;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    z-index: 1000;
    transform: translateY(-2rem);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
}

.popup.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.popup-content {
    display: flex;
    align-items: center;
}

.popup-icon {
    font-size: 2rem;
    margin-right: 1.5rem;
}

.popup.success .popup-icon {
    color: var(--success);
}

.popup.error .popup-icon {
    color: var(--danger);
}

.popup-message {
    flex: 1;
    font-size: 1.4rem;
}

.popup-close {
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--medium-gray);
    cursor: pointer;
    margin-left: 1.5rem;
    transition: var(--transition);
}

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

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: transparent;
    z-index: 100;
    transition: var(--transition);
    padding: 1.5rem 0;
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
    padding: 0.8rem 0;
}

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

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

.logo img {
    width: 4.2rem;
    height: 4.2rem;
    border-radius: 50%;
    margin-right: 1.2rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.header.scrolled .logo img {
    border-color: rgba(204, 0, 54, 0.2);
}

.logo h1 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
    transition: var(--transition);
    letter-spacing: 1px;
}

.header.scrolled .logo h1 {
    color: var(--dark-color);
}

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

.nav-list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    font-size: 1.4rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    padding: 0.8rem 1.4rem;
    position: relative;
    transition: var(--transition);
    border-radius: var(--border-radius-sm);
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.15);
}

.header.scrolled .nav-link:hover,
.header.scrolled .nav-link.active {
    color: var(--primary-color);
    background-color: rgba(204, 0, 54, 0.06);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--primary-light);
    transition: var(--transition);
    border-radius: 2px;
}

.header.scrolled .nav-link::after {
    background-color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 50%;
}

.nav-link.highlight {
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: var(--border-radius-sm);
    padding: 0.8rem 2rem;
    margin-left: 1rem;
}

.nav-link.highlight:hover {
    background-color: var(--primary-dark);
    color: var(--white);
}

.nav-link.highlight::after {
    display: none;
}

.header-actions {
    display: flex;
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.2rem 2.8rem;
    font-size: 1.4rem;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    letter-spacing: 0.5px;
}

.btn i {
    margin-right: 0.8rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.35);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.4);
}

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

.btn-secondary:hover {
    background-color: #12122a;
    color: var(--white);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

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

.header.scrolled .btn-outline {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.btn-light {
    background-color: var(--white);
    color: var(--primary-color);
    font-weight: 700;
}

.btn-light:hover {
    background-color: var(--light-gray);
    transform: translateY(-2px);
}

.btn-outline-light {
    background-color: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

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

.btn-block {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 3.5rem;
    height: 2.5rem;
    position: relative;
    margin-left: 2rem;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--white);
    position: absolute;
    left: 0;
    transition: var(--transition);
    border-radius: 2px;
}

.header.scrolled .menu-toggle span {
    background-color: var(--dark-color);
}

.menu-toggle span:nth-child(1) { top: 0; }
.menu-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.menu-toggle span:nth-child(3) { bottom: 0; }

.menu-toggle.active span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 40rem;
    height: 100vh;
    background-color: var(--white);
    z-index: 200;
    padding: 2.5rem;
    overflow-y: auto;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.15);
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--light-gray);
}

.mobile-nav-header .logo {
    display: flex;
    align-items: center;
}

.mobile-nav-header .logo img {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    margin-right: 1rem;
    border: 2px solid rgba(204, 0, 54, 0.2);
}

.mobile-nav-header .logo h2 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--dark-color);
}

.mobile-nav-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--medium-gray);
    cursor: pointer;
    transition: var(--transition);
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.mobile-nav-close:hover {
    color: var(--primary-color);
    background-color: rgba(204, 0, 54, 0.06);
}

.mobile-nav-list {
    margin-bottom: 3rem;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--dark-gray);
    padding: 1.4rem 1.5rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.mobile-nav-link:hover {
    color: var(--primary-color);
    background-color: rgba(204, 0, 54, 0.04);
    padding-left: 2rem;
}

.mobile-nav-link.highlight {
    color: var(--primary-color);
    font-weight: 700;
    background-color: rgba(204, 0, 54, 0.06);
}

.mobile-nav-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--light-gray);
}

.mobile-nav-footer .social-links {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.mobile-nav-footer .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4.2rem;
    height: 4.2rem;
    background-color: var(--light-gray);
    color: var(--dark-gray);
    border-radius: 50%;
    margin: 0 0.6rem;
    transition: var(--transition);
}

.mobile-nav-footer .social-link:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    background: linear-gradient(135deg, #0f0f1a 0%, #1a0a10 40%, #2a0015 100%);
    display: flex;
    align-items: center;
    padding: 12rem 0 8rem;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80rem;
    height: 80rem;
    background: radial-gradient(circle, rgba(var(--primary-rgb), 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 60rem;
    height: 60rem;
    background: radial-gradient(circle, rgba(var(--primary-rgb), 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    max-width: 60rem;
}

.hero-title {
    font-size: 5.2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 2rem;
    line-height: 1.15;
    letter-spacing: -1px;
}

.hero-title span,
.hero-title {
    background: linear-gradient(135deg, var(--white) 40%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 3.5rem;
    font-weight: 400;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.hero-image {
    flex: 1;
    max-width: 50rem;
    position: relative;
}

.image-container {
    position: relative;
    width: 100%;
    height: 40rem;
}

.image-container img {
    position: absolute;
    border-radius: 1.2rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    transition: var(--transition-slow);
}

.image-container .img-1 {
    width: 60%;
    height: auto;
    top: 0;
    left: 0;
    z-index: 3;
    transform: rotate(-5deg);
}

.image-container .img-2 {
    width: 50%;
    height: auto;
    top: 10%;
    right: 0;
    z-index: 2;
    transform: rotate(5deg);
}

.image-container .img-3 {
    width: 45%;
    height: auto;
    bottom: 0;
    left: 20%;
    z-index: 1;
    transform: rotate(-3deg);
}

.hero-image:hover .img-1 {
    transform: translateY(-10px) rotate(-3deg);
}

.hero-image:hover .img-2 {
    transform: translateY(-5px) rotate(8deg);
}

.hero-image:hover .img-3 {
    transform: translateY(5px) rotate(-5deg);
}

.hero-image .social-links {
    position: absolute;
    bottom: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.hero-image .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4.5rem;
    height: 4.5rem;
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--white);
    border-radius: 50%;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.hero-image .social-link:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
}

.hero-shape {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 15rem;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="1" d="M0,224L48,213.3C96,203,192,181,288,181.3C384,181,480,203,576,224C672,245,768,267,864,250.7C960,235,1056,181,1152,165.3C1248,149,1344,171,1392,181.3L1440,192L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: center;
}

/* ===== SECTION HEADERS ===== */
.section-header {
    text-align: center;
    margin-bottom: 6rem;
}

.section-title {
    font-size: 3.6rem;
    font-weight: 800;
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
    letter-spacing: -0.5px;
}

.section-line {
    width: 6rem;
    height: 4px;
    background: var(--primary-color);
    margin: 0 auto;
    position: relative;
    border-radius: 4px;
}

.section-line::before,
.section-line::after {
    content: '';
    position: absolute;
    width: 1.2rem;
    height: 1.2rem;
    background: var(--primary-color);
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    border-radius: 2px;
}

.section-line::before {
    left: -0.6rem;
}

.section-line::after {
    right: -0.6rem;
}

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

.about-content {
    display: flex;
    align-items: center;
    gap: 6rem;
}

.about-image {
    flex: 1;
    position: relative;
    max-width: 50rem;
}

.about-image img {
    width: 100%;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-lg);
}

.about-badge {
    position: absolute;
    bottom: -2rem;
    right: -2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 1.5rem 2.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1.4rem;
    box-shadow: 0 10px 30px rgba(var(--primary-rgb), 0.3);
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 2rem;
}

.about-text p {
    margin-bottom: 2rem;
    color: var(--medium-gray);
    line-height: 1.8;
}

.about-stats {
    display: flex;
    justify-content: space-between;
    margin-top: 4rem;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    flex: 1;
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow);
}

.stat-number {
    font-size: 3.6rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.stat-label {
    font-size: 1.3rem;
    color: var(--medium-gray);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== SERVICES SECTION ===== */
.services {
    background-color: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(30rem, 1fr));
    gap: 3rem;
}

.service-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 3.5rem;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-0.8rem);
    box-shadow: var(--box-shadow-lg);
}

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

.service-icon {
    width: 7rem;
    height: 7rem;
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.08), rgba(var(--primary-rgb), 0.15));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    transform: scale(1.05);
}

.service-icon i {
    font-size: 2.8rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.service-card:hover .service-icon i {
    color: var(--white);
}

.service-title {
    font-size: 1.9rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 1.2rem;
}

.service-description {
    color: var(--medium-gray);
    margin-bottom: 2rem;
    flex-grow: 1;
    font-size: 1.5rem;
    line-height: 1.7;
}

.service-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.4rem;
    transition: var(--transition);
}

.service-link i {
    margin-left: 0.8rem;
    transition: var(--transition);
    font-size: 1.2rem;
}

.service-link:hover {
    color: var(--primary-dark);
}

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

.service-card.highlight-card {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border: none;
}

.service-card.highlight-card::before {
    display: none;
}

.service-card.highlight-card .service-icon {
    background-color: rgba(255, 255, 255, 0.2);
}

.service-card.highlight-card .service-icon i {
    color: var(--white);
}

.service-card.highlight-card .service-title {
    color: var(--white);
}

.service-card.highlight-card .service-description {
    color: rgba(255, 255, 255, 0.85);
}

.service-card.highlight-card .service-link {
    color: var(--white);
}

/* ===== WHY US SECTION ===== */
.why-us {
    background-color: var(--white);
}

.why-us-content {
    display: flex;
    align-items: center;
    gap: 6rem;
}

.why-us-image {
    flex: 1;
    position: relative;
    max-width: 50rem;
}

.why-us-image img {
    width: 100%;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-lg);
}

.experience-badge {
    position: absolute;
    top: -2rem;
    right: -2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 2rem;
    border-radius: 50%;
    text-align: center;
    box-shadow: 0 10px 30px rgba(var(--primary-rgb), 0.3);
    width: 12rem;
    height: 12rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.experience-badge .number {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
}

.experience-badge .text {
    font-size: 1.2rem;
    margin-top: 0.5rem;
}

.why-us-text {
    flex: 1;
}

.why-us-text h3 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 2rem;
}

.why-us-text > p {
    margin-bottom: 3rem;
    color: var(--medium-gray);
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(25rem, 1fr));
    gap: 2.5rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.feature-icon {
    flex-shrink: 0;
    width: 4.5rem;
    height: 4.5rem;
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.08), rgba(var(--primary-rgb), 0.15));
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.feature-text h4 {
    font-size: 1.7rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.6rem;
}

.feature-text p {
    color: var(--medium-gray);
    font-size: 1.4rem;
    line-height: 1.6;
}

/* ===== CLIENTS SECTION ===== */
.clients {
    background-color: var(--light-gray);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(25rem, 1fr));
    gap: 3rem;
    margin-bottom: 6rem;
}

.client-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 3rem;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.client-card:hover {
    transform: translateY(-0.8rem);
    box-shadow: var(--box-shadow-lg);
}

.client-logo {
    width: 7rem;
    height: 7rem;
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.08), rgba(var(--primary-rgb), 0.15));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
}

.client-logo i {
    font-size: 3rem;
    color: var(--primary-color);
}

.client-name {
    font-size: 1.9rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.client-description {
    color: var(--medium-gray);
    margin-bottom: 2rem;
    font-size: 1.5rem;
    line-height: 1.7;
}

.client-link {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    font-size: 1.4rem;
}

.client-link i {
    margin-left: 0.8rem;
    font-size: 1.2rem;
    transition: var(--transition);
}

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

/* Testimonials */
.testimonials {
    position: relative;
    overflow: hidden;
}

.testimonial-slider {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-slide {
    min-width: 100%;
    padding: 0 1.5rem;
}

.testimonial-content {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 4rem;
    box-shadow: var(--box-shadow);
    position: relative;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.testimonial-quote {
    position: absolute;
    top: 2rem;
    left: 2rem;
    font-size: 3rem;
    color: rgba(var(--primary-rgb), 0.15);
}

.testimonial-text {
    font-size: 1.8rem;
    line-height: 1.8;
    color: var(--dark-gray);
    margin-bottom: 3rem;
    font-style: italic;
}

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

.author-image {
    width: 5.5rem;
    height: 5.5rem;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 1.5rem;
    border: 3px solid var(--primary-color);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.2);
}

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

.author-info h4 {
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.3rem;
}

.author-info p {
    color: var(--medium-gray);
    font-size: 1.3rem;
}

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

.testimonial-prev,
.testimonial-next {
    background: none;
    border: 2px solid rgba(var(--primary-rgb), 0.2);
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 50%;
    background-color: var(--white);
    color: var(--primary-color);
    font-size: 1.6rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.testimonial-prev:hover,
.testimonial-next:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
    transform: scale(1.05);
}

.testimonial-dots {
    display: flex;
    align-items: center;
    margin: 0 2rem;
}

.dot {
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background-color: rgba(var(--primary-rgb), 0.15);
    margin: 0 0.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    width: 3rem;
    border-radius: 1rem;
    background-color: var(--primary-color);
}

/* ===== CONTACT SECTION ===== */
.contact {
    background-color: var(--white);
}

.contact-content {
    display: flex;
    gap: 5rem;
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 2rem;
}

.contact-info > p {
    margin-bottom: 3rem;
    color: var(--medium-gray);
    line-height: 1.8;
}

.contact-list {
    margin-bottom: 4rem;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2.5rem;
}

.contact-icon {
    flex-shrink: 0;
    width: 5rem;
    height: 5rem;
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.08), rgba(var(--primary-rgb), 0.15));
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.5rem;
}

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

.contact-text h4 {
    font-size: 1.7rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.3rem;
}

.contact-text a,
.contact-text p {
    color: var(--medium-gray);
    transition: var(--transition);
    font-size: 1.5rem;
}

.contact-text a:hover {
    color: var(--primary-color);
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4.2rem;
    height: 4.2rem;
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.06), rgba(var(--primary-rgb), 0.12));
    color: var(--primary-color);
    border-radius: 50%;
    transition: var(--transition);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(var(--primary-rgb), 0.3);
}

.contact-form {
    flex: 1;
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 4rem;
    box-shadow: var(--box-shadow-lg);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.contact-form h3 {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 3rem;
}

.form-row {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 2rem;
    width: 100%;
}

.form-group label {
    display: block;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: 0.8rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1.3rem 1.6rem;
    border: 2px solid #eaeaf0;
    border-radius: var(--border-radius-sm);
    font-size: 1.5rem;
    color: var(--dark-gray);
    transition: var(--transition);
    background-color: var(--light-gray);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.08);
    background-color: var(--white);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #b0b0c0;
}

.form-group textarea {
    resize: vertical;
    min-height: 12rem;
}

/* ===== CTA SECTION ===== */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 50%, #6a0020 100%);
    color: var(--white);
    padding: 10rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 60rem;
    height: 60rem;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content h2 {
    font-size: 3.8rem;
    font-weight: 800;
    margin-bottom: 2rem;
    letter-spacing: -0.5px;
}

.cta-content p {
    font-size: 1.8rem;
    margin-bottom: 3.5rem;
    opacity: 0.9;
    max-width: 65rem;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

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

/* ===== FOOTER ===== */
.footer {
    background-color: var(--dark-color);
    color: var(--light-gray);
    padding-top: 8rem;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 5rem;
    margin-bottom: 5rem;
}

.footer-logo {
    flex: 1;
    min-width: 25rem;
}

.footer-logo img {
    width: 10rem;
    height: 10rem;
    border-radius: 50%;
    margin-bottom: 2rem;
    border: 3px solid rgba(var(--primary-rgb), 0.3);
}

.footer-logo h3 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 2rem;
}

.footer-links {
    flex: 2;
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
}

.footer-column {
    flex: 1;
    min-width: 15rem;
}

.footer-column h4 {
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

.footer-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 3rem;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 3px;
}

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

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.55);
    transition: var(--transition);
    font-size: 1.5rem;
}

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

.footer-column .contact-info li {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.footer-column .contact-info li i {
    color: var(--primary-color);
    margin-right: 1rem;
    font-size: 1.6rem;
}

.footer-column .social-links {
    margin-top: 2rem;
}

.footer-column .social-link {
    background-color: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.7);
}

.footer-column .social-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 2.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.4rem;
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.4rem;
    transition: var(--transition);
}

.footer-legal a:hover {
    color: var(--primary-light);
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 10rem;
    right: 2.5rem;
    width: 5rem;
    height: 5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.35);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 99;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(var(--primary-rgb), 0.45);
    color: var(--white);
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 1200px) {
    html { font-size: 58%; }
    .hero-title { font-size: 4.4rem; }
    .section-title { font-size: 3.2rem; }
}

@media (max-width: 992px) {
    html { font-size: 56%; }

    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-content { margin-bottom: 5rem; }
    .hero-actions { justify-content: center; }

    .about-content,
    .why-us-content,
    .contact-content {
        flex-direction: column;
    }

    .about-image,
    .why-us-image {
        margin-bottom: 4rem;
    }

    .services-grid {
        grid-template-columns: repeat(auto-fill, minmax(28rem, 1fr));
    }

    .clients-grid {
        grid-template-columns: repeat(auto-fill, minmax(22rem, 1fr));
    }

    .features-grid {
        grid-template-columns: repeat(auto-fill, minmax(22rem, 1fr));
    }

    .footer-content { gap: 3rem; }

    .footer-logo {
        flex: 100%;
        text-align: center;
    }

    .footer-logo img {
        margin: 0 auto 2rem;
    }
}

@media (max-width: 768px) {
    html { font-size: 54%; }

    .header-inner { padding: 0 2rem; }
    .main-nav { display: none; }
    .menu-toggle { display: block; }
    .hero-title { font-size: 3.6rem; }
    .hero-subtitle { font-size: 1.8rem; }
    .section { padding: 6rem 0; }
    .section-title { font-size: 2.8rem; }

    .about-stats {
        flex-wrap: wrap;
        gap: 1.5rem;
    }

    .stat-item { flex: 1 0 45%; }

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .contact-form { padding: 3rem; }
    .testimonial-content { padding: 3rem; }
    .cta-content h2 { font-size: 3rem; }

    .footer-links {
        flex-direction: column;
        gap: 4rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-legal { justify-content: center; }
}

@media (max-width: 576px) {
    html { font-size: 52%; }

    .hero { padding: 10rem 0 6rem; }
    .hero-title { font-size: 3.2rem; }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn { width: 100%; }
    .section-header { margin-bottom: 4rem; }

    .services-grid,
    .clients-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }

    .stat-item { flex: 100%; }

    .testimonial-author {
        flex-direction: column;
        text-align: center;
    }

    .author-image {
        margin: 0 auto 1.5rem;
    }

    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }

    .cta-buttons .btn { width: 100%; }

    .back-to-top {
        width: 4.5rem;
        height: 4.5rem;
        bottom: 2rem;
        right: 2rem;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

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

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

.animate-fadeIn { animation: fadeIn 1s ease forwards; }
.animate-slideInLeft { animation: slideInLeft 1s ease forwards; }
.animate-slideInRight { animation: slideInRight 1s ease forwards; }
.animate-pulse { animation: pulse 2s infinite; }

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }
.delay-4 { animation-delay: 0.8s; }
.delay-5 { animation-delay: 1s; }