/* ==========================================================================
   KL Dirt Co. - Warm & Smooth Earthy Stylesheet (mobile-first)
   ========================================================================== */

/* Design tokens */
:root {
    --color-terracotta: #b07241;
    --color-terracotta-dark: #91562b;
    --color-espresso: #4a3525;
    --color-text: #3d352e;
    --color-text-muted: #615246;
    --color-clay: #7a6b5e;
    --color-cream-bg: #fbf9f6;
    --color-sand-border: #e3ded9;
    --color-gold: #e3a878;

    --shadow-card: 0 15px 35px rgba(43, 30, 20, 0.25);
    --shadow-header: 0 2px 15px rgba(74, 53, 37, 0.05);

    --container-max: 1200px;
    --section-pad: clamp(56px, 9vw, 90px);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-cream-bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden; /* guard against accidental horizontal scroll on mobile */
}

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

a {
    color: var(--color-terracotta);
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background-color: #ffffff;
    box-shadow: var(--shadow-header);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: var(--container-max);
    margin: 0 auto;
}

.logo {
    display: inline-flex;
    flex-direction: column;
    line-height: 1.05;
    text-decoration: none;
    white-space: nowrap;
}

.logo-main {
    font-size: clamp(20px, 5vw, 23px);
    font-weight: 800;
    color: var(--color-terracotta);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.logo-sub {
    font-size: clamp(9px, 2.4vw, 10.5px);
    font-weight: 600;
    color: var(--color-espresso);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-text-muted);
    font-weight: 600;
    transition: color 0.3s ease;
}

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

.nav-cta {
    background-color: var(--color-terracotta);
    color: #ffffff !important;
    padding: 10px 20px;
    border-radius: 6px;
    transition: background-color 0.3s ease !important;
}

.nav-cta:hover {
    background-color: var(--color-terracotta-dark);
}

/* Hamburger toggle (hidden on desktop) */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 22px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle-bar {
    display: block;
    width: 100%;
    height: 3px;
    border-radius: 3px;
    background-color: var(--color-espresso);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Hero Section with Split Layout */
.hero {
    background: linear-gradient(rgba(43, 30, 20, 0.75), rgba(43, 30, 20, 0.75)),
                url('hero-excavator.webp') no-repeat center center/cover;
    color: #ffffff;
    padding: clamp(56px, 10vw, 90px) 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

.hero-text h1 {
    font-size: clamp(30px, 6vw, 42px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #fffdfa;
}

.hero-text p {
    font-size: clamp(16px, 2.4vw, 18px);
    margin-bottom: 30px;
    color: #e6dfd5;
}

.features-list {
    list-style: none;
}

.features-list li {
    margin-bottom: 14px;
    display: flex;
    align-items: flex-start;
    font-size: 16px;
    color: #f5ece1;
}

.features-list li::before {
    content: "✓";
    color: var(--color-gold);
    font-weight: bold;
    margin-right: 12px;
    font-size: 18px;
    flex-shrink: 0;
}

/* Lead Form Card */
.form-card {
    background-color: #ffffff;
    border-radius: 10px;
    padding: clamp(24px, 5vw, 35px);
    box-shadow: var(--shadow-card);
    color: var(--color-text);
}

.form-card h3 {
    font-size: 24px;
    margin-bottom: 8px;
    color: var(--color-espresso);
    font-weight: 700;
}

.form-card > p {
    font-size: 14px;
    color: var(--color-clay);
    margin-bottom: 25px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-text-muted);
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-sand-border);
    border-radius: 6px;
    /* 16px prevents iOS Safari from auto-zooming when a field is focused */
    font-size: 16px;
    font-family: inherit;
    background-color: #fdfcfb;
    color: var(--color-text);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group textarea {
    resize: vertical;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--color-terracotta);
    box-shadow: 0 0 0 3px rgba(176, 114, 65, 0.15);
}

.form-group input:invalid:not(:placeholder-shown) {
    border-color: #c0563e;
}

.submit-btn {
    width: 100%;
    background-color: var(--color-terracotta);
    color: #ffffff;
    border: none;
    padding: 15px;
    font-size: 16px;
    font-weight: 700;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.1s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 10px;
    min-height: 48px; /* comfortable touch target */
}

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

.submit-btn:active {
    transform: scale(0.99);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.form-status {
    margin-top: 14px;
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    min-height: 1.2em;
}

.form-status.success { color: #3f7a4a; }
.form-status.error   { color: #c0563e; }

/* Services Section */
.services {
    padding: var(--section-pad) 0;
    background-color: #ffffff;
}

.section-title {
    text-align: center;
    margin-bottom: clamp(36px, 6vw, 55px);
}

.section-title h2 {
    font-size: clamp(26px, 4.5vw, 34px);
    color: var(--color-espresso);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    width: 50px;
    height: 4px;
    background-color: var(--color-terracotta);
    border-radius: 2px;
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section-title p {
    color: var(--color-clay);
    font-size: 16px;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media (min-width: 560px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.service-box {
    background-color: var(--color-cream-bg);
    border: 1px solid #f0e9e1;
    border-radius: 8px;
    padding: 35px 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.service-box:hover {
    transform: translateY(-5px);
    border-color: var(--color-sand-border);
    box-shadow: 0 10px 25px rgba(74, 53, 37, 0.04);
}

.service-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 22px;
    display: block;
    color: var(--color-terracotta);
    filter: drop-shadow(0 4px 6px rgba(176, 114, 65, 0.2));
}

.service-box h3 {
    font-size: 21px;
    color: var(--color-espresso);
    margin-bottom: 12px;
}

.service-box p {
    color: var(--color-text-muted);
    font-size: 15px;
}

/* Social Proof / Why Choose Us */
.why-us {
    padding: var(--section-pad) 0;
    background-color: #f4eee7;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item h4 {
    font-size: clamp(38px, 7vw, 46px);
    color: var(--color-terracotta);
    margin-bottom: 5px;
    font-weight: 800;
}

.stat-item p {
    font-size: 16px;
    color: var(--color-espresso);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Footer */
footer {
    background-color: #261c14;
    color: #e6dfd5;
    padding: 50px 0 25px 0;
    font-size: 14px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-about h3, .footer-contact h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-about p {
    color: #c7beab;
    max-width: 320px;
}

.footer-contact p {
    color: #c7beab;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 11px;
}

.footer-contact svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--color-gold);
}

.footer-contact a {
    color: #c7beab;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 25px;
    border-top: 1px solid #3d2f24;
    color: #948b7c;
}

/* ==========================================================================
   Responsive: tablet and up
   ========================================================================== */
@media (min-width: 768px) {
    .hero-grid {
        grid-template-columns: 1.2fr 0.8fr;
    }
}

/* ==========================================================================
   Responsive: mobile navigation (collapse into hamburger)
   ========================================================================== */
@media (max-width: 767px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 62px; /* below the sticky header */
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background-color: #ffffff;
        box-shadow: 0 12px 20px rgba(43, 30, 20, 0.12);
        padding: 8px 20px 20px;
        border-top: 1px solid #f0e9e1;

        /* hidden by default: slide/fade out and disable interaction */
        transform: translateY(-12px);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    }

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

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 14px 4px;
        border-bottom: 1px solid #f4eee7;
    }

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

    .nav-cta {
        text-align: center;
        margin-top: 12px;
        padding: 14px 20px;
    }

    /* Animate hamburger into an X when open */
    .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
        transform: translateY(9.5px) rotate(45deg);
    }
    .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
        transform: translateY(-9.5px) rotate(-45deg);
    }
}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}