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

:root {
    --color-primary: #00b38a;
    --color-primary-dark: #0a3d52;
    --color-primary-light: #e0f7f1;
    --color-accent: #00e0b0;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-border: #e2e8f0;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --container-max: 1140px;
    --header-height: 72px;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

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

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

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

.container {
    max-width: var(--container-max);
    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, 0.97);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: box-shadow 0.3s;
}

.header.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 32px;
}

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

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

.nav {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: auto;
}

.nav-link {
    font-size: 0.925rem;
    font-weight: 500;
    color: var(--color-text-light);
    transition: color 0.2s;
    position: relative;
}

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

.header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.925rem;
    color: var(--color-primary);
    white-space: nowrap;
}

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

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, #d4f0ea 100%);
    text-align: center;
}

.hero-inner {
    max-width: 720px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.25rem;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 20px;
    color: var(--color-text);
}

.hero-sub {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: 36px;
    line-height: 1.7;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
    border: none;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(0, 179, 138, 0.3);
}

.btn-primary:hover {
    background: #009b77;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 179, 138, 0.35);
}

/* ===== Section Common ===== */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: 48px;
}

/* ===== Services ===== */
.services {
    padding: 96px 0;
    text-align: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 36px 28px;
    text-align: left;
    transition: transform 0.2s, box-shadow 0.2s;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: var(--color-primary-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.65;
}

/* ===== About ===== */
.about {
    padding: 96px 0;
    background: var(--color-bg-alt);
}

.about-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-text p {
    color: var(--color-text-light);
    margin-bottom: 28px;
    font-size: 1.05rem;
    line-height: 1.7;
}

.about-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.about-list li {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.about-list li strong {
    font-size: 1rem;
    color: var(--color-text);
}

.about-list li span {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.stat {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: 4px;
    display: block;
}

/* ===== Testimonials ===== */
.testimonials {
    padding: 96px 0;
    text-align: center;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.testimonial-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 36px 28px;
    text-align: left;
}

.testimonial-stars {
    color: #f59e0b;
    font-size: 1.25rem;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 1rem;
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author strong {
    display: block;
    font-size: 0.95rem;
}

.testimonial-author span {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* ===== Contact ===== */
.contact {
    padding: 96px 0;
    background: var(--color-bg-alt);
}

.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-text p {
    font-size: 1.05rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    color: var(--color-primary);
}

.contact-item div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

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

.contact-item a,
.contact-item span {
    font-size: 0.95rem;
    color: var(--color-text-light);
}

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

/* ===== Footer ===== */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--color-border);
}

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

.footer-brand p {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: 4px;
}

.footer-nav {
    display: flex;
    gap: 24px;
}

.footer-nav a {
    font-size: 0.9rem;
    color: var(--color-text-light);
    transition: color 0.2s;
}

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

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

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-bg);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.3s, opacity 0.3s;
    }

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

    .header-phone {
        display: none;
    }

    .hero {
        padding: 130px 0 72px;
    }

    .hero h1 {
        font-size: 2.25rem;
    }

    .hero-sub {
        font-size: 1.05rem;
    }

    .services,
    .about,
    .testimonials,
    .contact {
        padding: 64px 0;
    }

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

    .about-inner,
    .contact-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .section-title {
        font-size: 1.65rem;
    }

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

    .footer-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.85rem;
    }

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