/* ===== Suburban Lynk Pty. Ltd. — styles.css ===== */

/* ===== Custom Properties ===== */
:root {
    --primary: #1a5f7a;
    --primary-dark: #124a5e;
    --accent: #e8a317;
    --accent-dark: #c98a0a;
    --bg: #f5f8fa;
    --surface: #ffffff;
    --text-dark: #1a1a1a;
    --text-light: #5a5a5a;
    --border: #d0d7de;
    --footer-bg: #0f2a3a;
    --footer-text: #cdd6dc;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg);
}

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

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

ul {
    list-style: none;
}

/* ===== Container ===== */
.container {
    width: min(90%, 1200px);
    margin-inline: auto;
    padding-block: 1.5rem;
}

/* ===== Navbar ===== */
.navbar {
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: 0.75rem;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.02em;
}

.nav-links ul {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

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

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

.nav-links a.active::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
}

.nav-cta {
    margin-left: 1rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 3px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-dark);
    border-radius: 2px;
    transition: all 0.2s ease;
}

/* ===== Hero ===== */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--surface);
    text-align: center;
    padding-block: 4rem 3rem;
}

.hero h1 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.hero-sublead {
    font-size: 1.1rem;
    max-width: 720px;
    margin-inline: auto;
    margin-bottom: 2rem;
    opacity: 0.92;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ===== Credentials Strip ===== */
.credentials-strip {
    background-color: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    padding-block: 0.85rem;
    font-size: 0.85rem;
    color: var(--text-light);
}

.credentials-strip strong {
    color: var(--text-dark);
}

/* ===== Services Preview ===== */
.services-preview {
    padding-block: 3rem 2.5rem;
    text-align: center;
}

.services-preview h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 0.75rem;
}

.section-sublead {
    color: var(--text-light);
    max-width: 640px;
    margin-inline: auto;
    margin-bottom: 2.5rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.75rem;
    text-align: left;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.service-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.service-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}

.service-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.7rem 1.6rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

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

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

.btn-outline {
    background: transparent;
    color: var(--surface);
    border-color: var(--surface);
}

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

/* ===== Footer ===== */
.footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    margin-top: 3rem;
}

.footer-inner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    padding-block: 2.5rem;
}

.footer h4 {
    color: var(--surface);
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.footer ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer a {
    color: var(--footer-text);
    font-size: 0.9rem;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-block: 1rem;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.8;
}

/* ===== Mobile Breakpoint ===== */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--surface);
        border-bottom: 1px solid var(--border);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .nav-links.open {
        max-height: 300px;
    }

    .nav-links ul {
        flex-direction: column;
        gap: 0;
        padding: 1rem 1.5rem;
    }

    .nav-links li {
        border-bottom: 1px solid var(--border);
    }

    .nav-links li:last-child {
        border-bottom: none;
    }

    .nav-links a {
        padding: 0.75rem 0;
        display: block;
    }

    .nav-cta {
        display: none;
    }

    .hero {
        padding-block: 3rem 2rem;
    }

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

    .services-preview {
        padding-block: 2.5rem 2rem;
    }
}