/* ========================================
   Baiting Technology - Main Stylesheet
   Flat Design Style
   ======================================== */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #10b981;
    --accent: #f59e0b;
    --dark: #1e293b;
    --gray: #64748b;
    --light-gray: #f1f5f9;
    --white: #ffffff;
    --gradient-1: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-2: linear-gradient(135deg, #10b981 0%, #2563eb 100%);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

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

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

/* ========================================
   Header & Navigation
   ======================================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: bold;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--gray);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

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

.lang-switch {
    display: flex;
    gap: 5px;
    background: var(--light-gray);
    padding: 5px;
    border-radius: 20px;
}

.lang-switch button {
    padding: 5px 12px;
    border: none;
    background: transparent;
    border-radius: 15px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.lang-switch button.active {
    background: var(--primary);
    color: var(--white);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    padding: 140px 0 80px;
    background: var(--gradient-1);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-text p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
    display: inline-block;
    text-align: center;
}

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

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

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

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

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

.btn-secondary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

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

.hero-graphic {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    padding: 30px;
}

.graphic-item {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    transition: transform 0.3s ease;
}

.graphic-item:hover {
    transform: scale(1.05);
}

.graphic-item:nth-child(1) { grid-column: span 2; }
.graphic-item:nth-child(4) { grid-column: span 2; }

/* ========================================
   Section Styles
   ======================================== */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark);
    margin-bottom: 15px;
}

.section-header p {
    color: var(--gray);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.section-tag {
    display: inline-block;
    background: var(--light-gray);
    color: var(--primary);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

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

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-1);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.service-card p {
    color: var(--gray);
    line-height: 1.7;
}

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

.about-image {
    background: var(--gradient-2);
    border-radius: 30px;
    padding: 40px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-graphic {
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 20px;
    color: var(--white);
}

.stat-row {
    display: flex;
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 15px;
}

.stat-item .number {
    font-size: 2.5rem;
    font-weight: 700;
}

.stat-item .label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.about-text h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: var(--dark);
}

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

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--dark);
}

.feature-item .check {
    width: 24px;
    height: 24px;
    background: var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 0.8rem;
}

/* ========================================
   Industries Section
   ======================================== */
.industries {
    background: var(--dark);
    color: var(--white);
}

.industries .section-header h2 {
    color: var(--white);
}

.industries .section-header p {
    color: rgba(255, 255, 255, 0.7);
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.industry-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.industry-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

.industry-card h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.industry-card p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* ========================================
   Contact Section
   ======================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.contact-info > p {
    color: var(--gray);
    margin-bottom: 30px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--light-gray);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 5px;
}

.contact-item p {
    color: var(--gray);
    font-size: 0.95rem;
}

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

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form {
    background: var(--light-gray);
    padding: 40px;
    border-radius: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid transparent;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: var(--white);
    font-family: inherit;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    width: 100%;
}

/* Map */
.map-section {
    background: var(--light-gray);
}

#map {
    width: 100%;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
}

/* ========================================
   Footer
   ======================================== */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 30px;
}

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

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 15px;
}

.footer-brand .logo-icon {
    background: var(--white);
    color: var(--primary);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.3s ease;
}

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

.footer-links li {
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

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

/* ========================================
   Page Headers (for inner pages)
   ======================================== */
.page-header {
    padding: 140px 0 60px;
    background: var(--gradient-1);
    color: var(--white);
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.page-header p {
    opacity: 0.9;
    font-size: 1.1rem;
}

/* ========================================
   Legal Pages
   ======================================== */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-content h2 {
    font-size: 1.5rem;
    margin: 40px 0 15px;
    color: var(--dark);
}

.legal-content h3 {
    font-size: 1.2rem;
    margin: 30px 0 10px;
    color: var(--dark);
}

.legal-content p {
    color: var(--gray);
    margin-bottom: 15px;
    line-height: 1.8;
}

.legal-content ul {
    margin: 15px 0 15px 20px;
    list-style: disc;
}

.legal-content li {
    color: var(--gray);
    margin-bottom: 8px;
    line-height: 1.7;
}

.legal-content .update-date {
    background: var(--light-gray);
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 30px;
}

/* ========================================
   About Page
   ======================================== */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.value-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--white);
    border-radius: 20px;
}

.value-icon {
    width: 80px;
    height: 80px;
    background: var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 20px;
}

.value-card h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.value-card p {
    color: var(--gray);
}

/* ========================================
   Services Page
   ======================================== */
.service-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 60px 0;
    border-bottom: 1px solid var(--light-gray);
}

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

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

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

.service-detail-content h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.service-detail-content p {
    color: var(--gray);
    margin-bottom: 20px;
    line-height: 1.8;
}

.service-detail-content ul {
    margin-left: 20px;
    list-style: none;
}

.service-detail-content li {
    color: var(--gray);
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.service-detail-content li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: bold;
}

.service-visual {
    background: var(--gradient-1);
    border-radius: 20px;
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: var(--white);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 992px) {
    .hero-content,
    .about-content,
    .contact-wrapper,
    .service-detail {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .hero-text h1 {
        font-size: 2.5rem;
    }

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        box-shadow: var(--shadow);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .mobile-menu-btn {
        display: flex;
    }

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

    .hero-text h1 {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

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

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

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

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

    .contact-form {
        padding: 25px;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 1.8rem;
    }

    .stat-row {
        flex-direction: column;
        gap: 15px;
    }

    section {
        padding: 60px 0;
    }

    .page-header {
        padding: 120px 0 40px;
    }

    .page-header h1 {
        font-size: 2rem;
    }
}