/* ============================================
   Terravane Ltd — Styles
   ============================================ */

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

:root {
    --color-primary: #2C5530;
    --color-primary-dark: #1E3B22;
    --color-secondary: #8B7355;
    --color-accent: #C4A35A;
    --color-bg: #FAFAF7;
    --color-bg-alt: #F0EDE8;
    --color-text: #1A1A1A;
    --color-text-light: #555;
    --color-white: #FFFFFF;
    --color-border: #D5D0C8;
    --font-heading: 'DM Sans', sans-serif;
    --font-body: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --max-width: 1100px;
    --header-height: 72px;
}

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

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

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

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

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

.section {
    padding: 80px 0;
}

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

.section-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 40px;
    text-align: center;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.btn:active {
    transform: translateY(1px);
}

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

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

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--color-white);
    z-index: 1000;
    transition: box-shadow 0.3s;
}

.site-header.scrolled {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.logo:hover {
    color: var(--color-primary-dark);
}

.main-nav {
    display: flex;
    gap: 32px;
}

.main-nav a {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    transition: color 0.2s;
    padding: 4px 0;
}

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

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

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

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

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

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

/* --- Hero --- */
.hero {
    margin-top: var(--header-height);
    padding: 120px 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 60%, #162A18 100%);
    color: var(--color-white);
    text-align: center;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 36px;
    line-height: 1.5;
}

.hero .btn-primary {
    background-color: var(--color-accent);
    color: var(--color-text);
    font-weight: 700;
}

.hero .btn-primary:hover {
    background-color: #b89545;
}

/* --- About --- */
.about-content {
    max-width: 750px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    color: var(--color-text-light);
    margin-bottom: 16px;
    font-size: 1.05rem;
}

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

/* --- Services --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    background-color: var(--color-white);
    padding: 36px 28px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.2s, transform 0.2s;
}

.service-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.service-icon {
    color: var(--color-accent);
    margin-bottom: 20px;
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

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

/* --- Contact --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: start;
}

.contact-form-wrap > p {
    color: var(--color-text-light);
    margin-bottom: 28px;
}

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

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--color-text);
}

.required {
    color: #c0392b;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background-color: var(--color-white);
    color: var(--color-text);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(44, 85, 48, 0.12);
}

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

.btn-submit {
    width: 100%;
    font-size: 1.05rem;
}

.form-status {
    margin-top: 16px;
    padding: 14px 18px;
    border-radius: 4px;
    font-size: 0.95rem;
}

.form-status.success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
}

.form-status.error {
    background-color: #fbe9e7;
    color: #c62828;
    border: 1px solid #ef9a9a;
}

.contact-details {
    background-color: var(--color-bg-alt);
    padding: 36px 32px;
    border-radius: 8px;
}

.contact-details h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.contact-details address {
    font-style: normal;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* --- Footer --- */
.site-footer {
    background-color: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.75);
    padding: 32px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-info p,
.footer-address p {
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.6;
}

/* ============================================
   Responsive
   ============================================ */

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

    .main-nav {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: 16px 24px 24px;
        gap: 0;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .main-nav.open {
        display: flex;
    }

    .main-nav a {
        padding: 12px 0;
        border-bottom: 1px solid var(--color-bg-alt);
    }

    .main-nav a:last-child {
        border-bottom: none;
    }

    .hero {
        padding: 80px 0;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

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

    .section {
        padding: 56px 0;
    }

    .section-title {
        font-size: 1.6rem;
        margin-bottom: 28px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

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

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

    .container {
        padding: 0 16px;
    }
}