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

:root {
    --color-primary: #2d6a4f;
    --color-primary-dark: #1b4332;
    --color-primary-light: #52b788;
    --color-accent: #d4a843;
    --color-bg: #ffffff;
    --color-bg-alt: #f8f9fa;
    --color-text: #2d3436;
    --color-text-light: #636e72;
    --color-border: #dfe6e9;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --container-max: 1200px;
    --radius: 12px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
}

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

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

ul {
    list-style: none;
}

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

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

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

.section__title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
    color: var(--color-primary-dark);
}

/* ===== Button ===== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
}

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

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

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition);
}

.header--scrolled {
    box-shadow: var(--shadow);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo__icon {
    font-size: 1.8rem;
}

.logo__text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--color-primary-dark);
}

.nav__list {
    display: flex;
    gap: 32px;
}

.nav__list a {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-text);
    position: relative;
}

.nav__list a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition);
}

.nav__list a:hover::after {
    width: 100%;
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
    transition: all var(--transition);
}

.lang-switch:hover {
    background: var(--color-primary-dark);
    transform: scale(1.05);
}

/* Burger */
.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.burger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ===== Hero ===== */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #1b4332 0%, #2d6a4f 50%, #40916c 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(212, 168, 67, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(82, 183, 136, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.hero__inner {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero__title {
    font-family: var(--font-heading);
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero__subtitle {
    font-size: 1.15rem;
    line-height: 1.7;
    opacity: 0.9;
    margin-bottom: 36px;
}

/* ===== About ===== */
.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.about__text p {
    margin-bottom: 16px;
    color: var(--color-text-light);
}

.about__text strong {
    color: var(--color-text);
}

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

.stat {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--color-bg-alt);
    border-radius: var(--radius);
    border-left: 4px solid var(--color-primary);
}

.stat__icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.stat__label {
    font-size: 0.85rem;
    color: var(--color-text-light);
    display: block;
}

.stat__value {
    font-weight: 600;
    color: var(--color-primary-dark);
}

/* ===== Services ===== */
.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--color-bg);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    text-align: center;
}

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

.service-card__icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.service-card__title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-primary-dark);
}

.service-card__text {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ===== Contact ===== */
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact__info h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--color-primary-dark);
}

.contact__info p {
    color: var(--color-text-light);
    margin-bottom: 24px;
}

.contact__list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact__list li {
    display: flex;
    align-items: center;
    gap: 12px;
}

.contact__icon {
    font-size: 1.3rem;
}

.contact__form {
    background: var(--color-bg-alt);
    padding: 32px;
    border-radius: var(--radius);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition);
    background: var(--color-bg);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(45, 106, 79, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ===== Footer ===== */
.footer {
    background: var(--color-primary-dark);
    color: #fff;
    padding: 40px 0;
}

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

.footer__brand {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.footer__copy {
    width: 100%;
    margin-top: 8px;
    font-size: 0.85rem;
    opacity: 0.7;
}

.footer__nav {
    display: flex;
    gap: 24px;
}

.footer__nav a {
    font-size: 0.9rem;
    opacity: 0.8;
    transition: opacity var(--transition);
}

.footer__nav a:hover {
    opacity: 1;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .hero {
        padding: 130px 0 80px;
    }

    .hero__title {
        font-size: 2.2rem;
    }

    .section__title {
        font-size: 1.8rem;
    }

    .about__grid,
    .contact__grid {
        grid-template-columns: 1fr;
    }

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

    .nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        padding: 24px;
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition);
    }

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

    .nav__list {
        flex-direction: column;
        gap: 16px;
    }

    .burger {
        display: flex;
    }

    .footer__inner {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}

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

    .hero__subtitle {
        font-size: 1rem;
    }

    .container {
        padding: 0 16px;
    }
}