/* ========================================
   NELSON CONSTRUCTION / CEMENT CORP.
   Classic & Elegant Concrete Company Site
   Color Palette: Plum + Amber
======================================== */

/* --- CSS Custom Properties --- */
:root {
    /* Plum Palette */
    --plum-50: #faf5f7;
    --plum-100: #f5e9ed;
    --plum-200: #ebd0d9;
    --plum-300: #d9a8b8;
    --plum-400: #c27a91;
    --plum-500: #a85572;
    --plum-600: #8f3d58;
    --plum-700: #773048;
    --plum-800: #63283d;
    --plum-900: #542234;
    --plum-950: #2d1119;
    
    /* Amber Palette */
    --amber-50: #fffbf0;
    --amber-100: #fff3d6;
    --amber-200: #ffe7ab;
    --amber-300: #ffd673;
    --amber-400: #ffc23f;
    --amber-500: #ffad1a;
    --amber-600: #f5910d;
    --amber-700: #d47207;
    --amber-800: #ad5706;
    --amber-900: #894208;
    
    /* Neutrals */
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    
    /* Typography */
    --font-serif: 'Lora', Georgia, serif;
    --font-sans: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --container-max: 1200px;
    --section-padding: 6rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--gray-800);
    background-color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

/* --- Utility Classes --- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.text-amber {
    color: var(--amber-500);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 4px;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.9375rem;
    letter-spacing: 0.025em;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--amber-500);
    color: var(--gray-900);
    border-color: var(--amber-500);
}

.btn-primary:hover {
    background-color: var(--amber-600);
    border-color: var(--amber-600);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 173, 26, 0.35);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--plum-900);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(45, 17, 25, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 173, 26, 0.15);
    transition: background-color 0.3s ease;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--white);
    letter-spacing: 0.05em;
}

.logo-icon {
    color: var(--amber-500);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--plum-200);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--amber-400);
}

.nav-links .btn-primary {
    padding: 0.625rem 1.25rem;
    font-size: 0.8125rem;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--white);
    padding: 0.5rem;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    background-color: var(--plum-950);
}

.mobile-menu.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.mobile-link {
    color: var(--white);
    font-family: var(--font-serif);
    font-size: 1.5rem;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.mobile-link:hover {
    color: var(--amber-400);
}

.mobile-phone {
    color: var(--amber-400);
    font-size: 1.25rem;
    margin-top: 1rem;
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(
        135deg,
        var(--plum-950) 0%,
        var(--plum-800) 25%,
        var(--plum-700) 50%,
        var(--plum-600) 75%,
        var(--plum-500) 100%
    );
    overflow: hidden;
    padding: 6rem 1.5rem 4rem;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(255, 173, 26, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 214, 115, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(255, 173, 26, 0.15);
    border: 1px solid rgba(255, 173, 26, 0.3);
    color: var(--amber-300);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background-color: var(--amber-400);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 600;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--plum-200);
    line-height: 1.7;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--plum-200);
    font-size: 0.875rem;
    font-weight: 500;
}

.trust-item svg {
    color: var(--amber-400);
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--plum-300);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-8px); }
    60% { transform: translateX(-50%) translateY(-4px); }
}

/* --- Section Styles --- */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--amber-600);
    margin-bottom: 0.75rem;
}

.section-tag.light {
    color: var(--amber-400);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    color: var(--plum-900);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-title.light {
    color: var(--white);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* --- Services Section --- */
.services {
    padding: var(--section-padding) 0;
    background-color: var(--gray-50);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 8px;
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(84, 34, 52, 0.1);
    border-color: var(--plum-200);
}

.service-icon {
    width: 64px;
    height: 64px;
    background-color: var(--plum-50);
    border: 1px solid var(--plum-200);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--plum-700);
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background-color: var(--plum-700);
    border-color: var(--plum-700);
    color: var(--white);
}

.service-card h3 {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--plum-900);
    margin-bottom: 0.75rem;
}

.service-card p {
    color: var(--gray-600);
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* --- About Section --- */
.about {
    padding: var(--section-padding) 0;
    background-color: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: 8px;
    width: 100%;
    height: 700px;
    object-fit: cover;
}

.about-image-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background-color: var(--amber-500);
    border-radius: 8px;
    z-index: -1;
    opacity: 0.3;
}

.about-content {
    padding: 1rem 0;
}

.about-text {
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.0625rem;
}

.about-stats {
    display: flex;
    gap: 3rem;
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--gray-200);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--plum-700);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

/* --- Why Us Section --- */
.why-us {
    padding: var(--section-padding) 0;
    background: linear-gradient(
        135deg,
        var(--plum-900) 0%,
        var(--plum-800) 100%
    );
    position: relative;
}

.why-us::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 80% 80%, rgba(255, 173, 26, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.why-card {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 2.5rem;
    transition: all 0.3s ease;
}

.why-card:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 173, 26, 0.3);
    transform: translateY(-4px);
}

.why-number {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 600;
    color: var(--amber-500);
    line-height: 1;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.why-card h3 {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.75rem;
}

.why-card p {
    color: var(--plum-200);
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* --- Gallery Section --- */
.gallery {
    padding: var(--section-padding) 0;
    background-color: var(--gray-50);
}

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

.gallery-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    background: linear-gradient(transparent, rgba(45, 17, 25, 0.9));
    color: var(--white);
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 600;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

/* --- Contact Section --- */
.contact {
    padding: var(--section-padding) 0;
    background: linear-gradient(
        135deg,
        var(--plum-950) 0%,
        var(--plum-800) 100%
    );
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 20% 80%, rgba(255, 173, 26, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    position: relative;
    z-index: 1;
}

.contact-description {
    color: var(--plum-200);
    font-size: 1.0625rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(255, 173, 26, 0.15);
    border: 1px solid rgba(255, 173, 26, 0.3);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--amber-400);
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--plum-200);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.contact-item a {
    color: var(--amber-400);
}

.contact-item a:hover {
    color: var(--amber-300);
    text-decoration: underline;
}

/* Contact Form */
.contact-form-wrapper {
    background-color: var(--white);
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--plum-900);
    letter-spacing: 0.025em;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 1px solid var(--gray-200);
    border-radius: 6px;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--gray-800);
    background-color: var(--gray-50);
    transition: all 0.3s ease;
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--plum-400);
    background-color: var(--white);
    box-shadow: 0 0 0 3px rgba(168, 85, 114, 0.1);
}

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

.form-success {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 3rem 2rem;
    gap: 1rem;
}

.form-success svg {
    color: var(--amber-500);
}

.form-success h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--plum-900);
}

.form-success p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* --- Footer --- */
.footer {
    background-color: var(--plum-950);
    padding: 4rem 0 2rem;
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--plum-300);
    margin-top: 1rem;
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 1.25rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--plum-300);
    font-size: 0.9375rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--amber-400);
}

.footer-contact p {
    color: var(--plum-300);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-contact a {
    color: var(--amber-400);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: var(--plum-300);
    font-size: 0.875rem;
}

/* --- Scroll Reveal Animation --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .about-grid {
        gap: 3rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 4rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 5rem 1.5rem 3rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-trust {
        flex-direction: column;
        align-items: center;
        gap: 0.75rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-image img {
        height: 400px;
    }
    
    .about-image-accent {
        display: none;
    }
    
    .about-stats {
        gap: 2rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .reveal {
        opacity: 1;
        transform: none;
    }
}