/* ===== CSS Variables ===== */
:root {
    --primary-gradient: linear-gradient(135deg, #e74c3c 0%, #3498db 100%);
    --primary-red: #e74c3c;
    --primary-blue: #3498db;
    --dark-blue: #2c3e50;
    --light-gray: #ecf0f1;
    --text-dark: #2c3e50;
    --text-gray: #7f8c8d;
    --white: #ffffff;
    --background: #f8f9fa;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 15px 50px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
    --border-radius: 12px;
    --font-main: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--background);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.section {
    padding: 100px 0;
}

/* ===== Section Header ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-subtitle {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.section-description {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Buttons ===== */
.btn-primary,
.btn-secondary,
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--text-dark);
    border-color: var(--text-gray);
}

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

.btn-outline {
    background: transparent;
    color: var(--text-dark);
    border-color: var(--text-dark);
}

.btn-outline:hover {
    background: var(--text-dark);
    color: var(--white);
}

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

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

.btn-lg {
    padding: 18px 40px;
    font-size: 18px;
}

/* ===== Header/Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

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

.logo-img {
    height: 40px;
    width: auto;
}

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

.nav-list {
    display: flex;
    gap: 40px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dark);
    transition: var(--transition);
    position: relative;
}

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

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

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

.nav-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-dark);
}

/* ===== Hero Section ===== */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.05) 0%, rgba(52, 152, 219, 0.05) 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: var(--white);
    border-radius: 50px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-red);
}

.hero-badge i {
    color: var(--primary-blue);
}

.hero-title {
    font-size: 64px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 25px;
}

.hero-description {
    font-size: 20px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    margin-bottom: 50px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

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

.stat-number {
    font-size: 36px;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 14px;
    color: var(--text-gray);
    margin-top: 5px;
}

.hero-image {
    position: relative;
}

.hero-img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
}

.hero-floating-card {
    position: absolute;
    background: var(--white);
    padding: 15px 25px;
    border-radius: 50px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    animation: float 3s ease-in-out infinite;
}

.hero-floating-card i {
    font-size: 20px;
}

.card-1 {
    top: 20px;
    left: -30px;
    color: var(--primary-red);
}

.card-2 {
    bottom: 30px;
    right: -30px;
    color: var(--primary-blue);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* ===== Services Section ===== */
.services {
    background: var(--white);
}

.services-main {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.service-card {
    background: var(--light-gray);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
}

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

.service-highlight {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 50px;
    align-items: center;
}

.service-highlight:nth-child(even) {
    grid-template-columns: 1fr 1fr;
}

.service-highlight:nth-child(even) .service-content {
    order: 2;
}

.service-highlight:nth-child(even) .service-image {
    order: 1;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.service-icon i {
    font-size: 36px;
    color: var(--white);
}

.service-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.service-description {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 25px;
}

.service-features {
    list-style: none;
    margin-bottom: 30px;
}

.service-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 15px;
    font-size: 15px;
    color: var(--text-dark);
}

.service-features i {
    color: var(--primary-red);
    margin-top: 3px;
    flex-shrink: 0;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-red);
    transition: var(--transition);
}

.service-link:hover {
    gap: 12px;
}

.service-image {
    width: 100%;
    height: 100%;
    min-height: 300px;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
}

.service-sub-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-bottom: 30px;
}

.service-sub-item {
    display: flex;
    gap: 15px;
    padding: 20px;
    background: var(--white);
    border-radius: 12px;
}

.service-sub-item i {
    font-size: 28px;
    color: var(--primary-blue);
    flex-shrink: 0;
}

.service-sub-item h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.service-sub-item p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.5;
}

/* ===== Software Section ===== */
.software-section {
    background: var(--background);
}

.software-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 40px;
}

.software-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
}

.software-feature-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 25px;
    background: var(--white);
    border-radius: 15px;
    transition: var(--transition);
}

.software-feature-item:hover {
    box-shadow: var(--shadow);
    transform: translateX(10px);
}

.feature-icon-box {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon-box i {
    font-size: 28px;
    color: var(--white);
}

.software-feature-item h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.software-feature-item p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
}

.software-image {
    position: relative;
}

.software-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
}

.software-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(0, 0, 0, 0.8);
    color: var(--white);
    padding: 15px 25px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600;
}

.software-badge i {
    color: #f39c12;
}

.software-note {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    border-left: 4px solid var(--primary-blue);
}

.software-note i {
    font-size: 24px;
    color: var(--primary-blue);
    flex-shrink: 0;
    margin-top: 3px;
}

.software-note p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* ===== About Section ===== */
.about {
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.about-description {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.value-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    background: var(--light-gray);
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
}

.value-item i {
    color: var(--primary-red);
    font-size: 20px;
}

/* ===== Why Us Section ===== */
.why-us {
    background: var(--background);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.why-us-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    position: relative;
}

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

.why-us-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 48px;
    font-weight: 900;
    color: var(--light-gray);
}

.why-us-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: var(--primary-gradient);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.why-us-icon i {
    font-size: 36px;
    color: var(--white);
}

.why-us-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

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

/* ===== Process Section ===== */
.process {
    background: var(--white);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-red), var(--primary-blue));
    z-index: 0;
}

.process-step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-icon {
    width: 100px;
    height: 100px;
    background: var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.process-step:hover .step-icon {
    background: var(--primary-gradient);
}

.step-icon i {
    font-size: 40px;
    color: var(--primary-blue);
    transition: var(--transition);
}

.process-step:hover .step-icon i {
    color: var(--white);
}

.process-step h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.process-step p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* ===== CTA Section ===== */
.cta {
    background: var(--primary-gradient);
    color: var(--white);
    text-align: center;
}

.cta-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
}

.cta-description {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.cta-note {
    font-size: 16px;
    opacity: 0.9;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* ===== Contact Section ===== */
.contact {
    background: var(--background);
}

.contact-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 16px;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-size: 15px;
    font-family: var(--font-main);
    color: var(--text-dark);
    transition: var(--transition);
}

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

.contact-form button[type="submit"] {
    grid-column: 1 / -1;
    width: 100%;
    justify-content: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-info-item {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    display: flex;
    gap: 20px;
}

.contact-info-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-info-icon i {
    font-size: 24px;
    color: var(--white);
}

.contact-info-item h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.contact-info-item p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

.contact-info-item a {
    color: var(--primary-blue);
    transition: var(--transition);
}

.contact-info-item a:hover {
    color: var(--primary-red);
}

/* ===== Footer ===== */
.footer {
    background: var(--dark-blue);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo-img {
    height: 40px;
    width: auto;
    margin-bottom: 20px;
}

.footer-description {
    font-size: 15px;
    line-height: 1.7;
    opacity: 0.8;
    margin-bottom: 25px;
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-red);
    transform: translateY(-3px);
}

.footer-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.footer-links a {
    font-size: 15px;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-red);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 15px;
    font-size: 15px;
    opacity: 0.8;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
    font-size: 14px;
    opacity: 0.7;
}

.footer-legal {
    display: flex;
    gap: 25px;
}

.footer-legal a {
    font-size: 14px;
    opacity: 0.7;
    transition: var(--transition);
}

.footer-legal a:hover {
    opacity: 1;
}

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

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

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

/* ===== Responsive Design ===== */
@media screen and (max-width: 1024px) {
    .section-title {
        font-size: 40px;
    }

    .hero-title {
        font-size: 48px;
    }

    .service-highlight {
        grid-template-columns: 1fr;
    }

    .service-highlight:nth-child(even) .service-content,
    .service-highlight:nth-child(even) .service-image {
        order: unset;
    }

    .service-sub-list {
        grid-template-columns: 1fr;
    }

    .why-us-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-steps::before {
        display: none;
    }

    .software-content {
        grid-template-columns: 1fr;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        background: var(--white);
        padding: 30px 20px;
        box-shadow: var(--shadow);
        transition: var(--transition);
    }

    .nav-menu.show {
        left: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 20px;
    }

    .nav-actions {
        flex-direction: column;
        width: 100%;
        margin-top: 20px;
    }

    .nav-actions .btn-primary,
    .nav-actions .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .nav-toggle {
        display: block;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 32px;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-container {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-description {
        font-size: 18px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-floating-card {
        position: static;
        margin: 15px 0;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-values {
        grid-template-columns: 1fr;
    }

    .why-us-grid {
        grid-template-columns: 1fr;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .cta-title {
        font-size: 32px;
    }

    .cta-actions {
        flex-direction: column;
    }

    .contact-form {
        grid-template-columns: 1fr;
        padding: 30px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }

    .btn-lg {
        padding: 16px 30px;
        font-size: 16px;
    }

    .stat-number {
        font-size: 28px;
    }

    .service-highlight {
        padding: 30px;
    }
}