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

:root {
    --color-primary: #0f2b46;
    --color-primary-light: #1a3d5c;
    --color-accent: #2a7de1;
    --color-accent-hover: #1e6bc9;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-bg: #ffffff;
    --color-bg-alt: #f7f9fc;
    --color-border: #e2e8f0;
    --color-card-shadow: rgba(0, 0, 0, 0.06);
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --max-width: 1200px;
    --header-height: 72px;
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* ===== Container ===== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    transition: box-shadow var(--transition);
}

.header-scrolled {
    box-shadow: 0 1px 10px rgba(0, 0, 0, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-primary);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-accent);
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
    border-radius: 8px;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--color-text-light);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero ===== */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    max-width: 800px;
    margin: 0 auto 24px;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 1.15rem;
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto 40px;
    opacity: 0.85;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(42, 125, 225, 0.3);
}

.btn-outline {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    color: white;
}

/* ===== Sections ===== */
.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--color-bg-alt);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto 60px;
    line-height: 1.6;
}

/* ===== Grid ===== */
.grid {
    display: grid;
    gap: 24px;
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

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

/* ===== Cards ===== */
.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 36px 28px;
    transition: all var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--color-card-shadow);
    border-color: transparent;
}

.card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--color-bg-alt);
    border-radius: 12px;
    margin-bottom: 20px;
    color: var(--color-accent);
}

.card-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-primary);
}

.card-text {
    color: var(--color-text-light);
    font-size: 0.92rem;
    line-height: 1.65;
}

/* ===== Industry Cards ===== */
.industry-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 28px 24px;
    transition: all var(--transition);
}

.industry-card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 4px 16px var(--color-card-shadow);
}

.industry-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.industry-card p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== About ===== */
.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--color-text-light);
    line-height: 1.75;
    font-size: 0.95rem;
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.stat {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--color-bg);
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--color-bg-alt);
    border-radius: 10px;
    color: var(--color-accent);
}

.stat h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 2px;
}

.stat p {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.contact-card {
    text-align: center;
    padding: 36px 20px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    transition: all var(--transition);
}

.contact-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--color-card-shadow);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--color-bg-alt);
    border-radius: 50%;
    margin: 0 auto 16px;
    color: var(--color-accent);
}

.contact-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

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

/* ===== Footer ===== */
.footer {
    background: var(--color-primary);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
    color: white;
    margin-bottom: 16px;
}

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

.footer-desc {
    font-size: 0.85rem;
    line-height: 1.6;
    opacity: 0.7;
}

.footer-links h4 {
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-links a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    margin-bottom: 10px;
    transition: color var(--transition);
}

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

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.8rem;
    opacity: 0.5;
}

/* ===== Legal Pages ===== */
.legal-hero {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    text-align: center;
}

.legal-hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.legal-hero p {
    opacity: 0.7;
    font-size: 0.95rem;
}

.legal-content {
    padding: 60px 0 100px;
    max-width: 800px;
    margin: 0 auto;
}

.legal-content h2 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--color-primary);
    margin: 40px 0 16px;
}

.legal-content h2:first-child {
    margin-top: 0;
}

.legal-content p {
    color: var(--color-text-light);
    font-size: 0.92rem;
    line-height: 1.75;
    margin-bottom: 16px;
}

.legal-content ul {
    margin: 12px 0 20px 24px;
    color: var(--color-text-light);
    font-size: 0.92rem;
    line-height: 1.75;
}

.legal-content li {
    margin-bottom: 8px;
}

.legal-content a {
    color: var(--color-accent);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-inner {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

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

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 130px 0 70px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section {
        padding: 70px 0;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .legal-hero h1 {
        font-size: 1.75rem;
    }

    .legal-content {
        padding: 40px 24px 80px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.65rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
    }
}