/* ===================================
   WTX Construction Specialties
   Classic & Elegant Design System
   =================================== */

/* CSS Variables */
:root {
    --plum-50: #fdf2f4;
    --plum-100: #fce7eb;
    --plum-200: #f9d0d9;
    --plum-300: #f3a9b7;
    --plum-400: #e9748f;
    --plum-500: #d44d68;
    --plum-600: #b8324e;
    --plum-700: #9a2741;
    --plum-800: #7f2238;
    --plum-900: #6a1e31;
    
    --plum-muted: #8E7B96;
    --plum-light: #B8A5C4;
    --plum-dark: #4A3F52;
    
    --amber-50: #fffbeb;
    --amber-100: #fef3c7;
    --amber-200: #fde68a;
    --amber-300: #fcd34d;
    --amber-400: #fbbf24;
    --amber-500: #f59e0b;
    --amber-600: #d97706;
    --amber-700: #b45309;
    --amber-800: #92400e;
    --amber-900: #78350f;
    
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-200: #e5e5e5;
    --neutral-300: #d4d4d4;
    --neutral-400: #a3a3a3;
    --neutral-500: #737373;
    --neutral-600: #525252;
    --neutral-700: #404040;
    --neutral-800: #262626;
    --neutral-900: #171717;
    --neutral-950: #0a0a0a;
    
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', system-ui, sans-serif;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 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(--neutral-800);
    background-color: var(--neutral-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
    color: var(--neutral-900);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
    color: var(--neutral-600);
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===================================
   Header
   =================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--neutral-200);
    transition: var(--transition);
}

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo-mark {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--plum-muted);
    letter-spacing: 0.05em;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--neutral-900);
    letter-spacing: 0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--neutral-700);
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--plum-muted);
    transition: var(--transition);
}

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

.nav-links a:hover::after {
    width: 100%;
}

.nav-phone {
    color: var(--plum-muted) !important;
    font-weight: 600 !important;
    padding: 0.5rem 1rem;
    border: 1px solid var(--plum-muted);
    border-radius: 6px;
    transition: var(--transition);
}

.nav-phone:hover {
    background: var(--plum-muted);
    color: white !important;
}

.nav-phone::after {
    display: none !important;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    padding: 0.5rem;
    color: var(--neutral-800);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 300px;
    background: white;
    padding: 5rem 2rem 2rem;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu-overlay.active .mobile-nav {
    transform: translateX(0);
}

.mobile-nav a {
    display: block;
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--neutral-800);
    padding: 1rem 0;
    border-bottom: 1px solid var(--neutral-200);
    transition: var(--transition);
}

.mobile-nav a:hover {
    color: var(--plum-muted);
}

.mobile-contact {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--neutral-200);
}

.mobile-contact p {
    color: var(--neutral-500);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.mobile-contact a {
    color: var(--plum-muted);
    font-weight: 600;
    font-size: 1.125rem;
}

.close-menu-btn {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    color: var(--neutral-600);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -2;
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(74, 63, 82, 0.85) 0%,
        rgba(74, 63, 82, 0.75) 50%,
        rgba(74, 63, 82, 0.9) 100%
    );
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    padding: 8rem 1.5rem 4rem;
}

.hero-headline {
    color: white;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subhead {
    color: rgba(255, 255, 255, 0.9);
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    margin-bottom: 2.5rem;
    line-height: 1.7;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--amber-500);
    color: var(--neutral-900);
    border: 2px solid var(--amber-500);
}

.btn-primary:hover {
    background: var(--amber-600);
    border-color: var(--amber-600);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* ===================================
   Section Styles
   =================================== */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 4rem;
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--plum-muted);
    margin-bottom: 1rem;
}

.section-title {
    margin-bottom: 1rem;
    color: var(--neutral-900);
}

.section-desc {
    font-size: 1.125rem;
    color: var(--neutral-600);
}

/* ===================================
   Services Section
   =================================== */
.services {
    padding: 6rem 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--neutral-50);
    border: 1px solid var(--neutral-200);
    border-radius: 12px;
    padding: 2.5rem;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--plum-light);
}

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

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

.service-card h3 {
    margin-bottom: 0.75rem;
    color: var(--neutral-900);
}

.service-card p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ===================================
   About Section
   =================================== */
.about {
    padding: 6rem 0;
    background: var(--neutral-50);
}

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

.about-image {
    position: relative;
}

.about-img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
}

.about-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: var(--amber-200);
    border-radius: 12px;
    z-index: -1;
}

.about-content {
    padding: 2rem 0;
}

.about-text {
    margin-bottom: 1.5rem;
    font-size: 1.0625rem;
    line-height: 1.8;
}

.about-values {
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.value-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.value-title {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--neutral-900);
}

.value-desc {
    font-size: 0.9375rem;
    color: var(--neutral-600);
}

/* ===================================
   Projects Section
   =================================== */
.projects {
    padding: 6rem 0;
    background: white;
}

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

.project-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 3/2;
    cursor: pointer;
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover .project-img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-overlay h4 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.project-overlay p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: 6rem 0;
    background: var(--neutral-900);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    color: white;
}

.contact-info .section-title {
    color: white;
}

.contact-info .section-desc {
    color: rgba(255, 255, 255, 0.7);
}

.contact-details {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--amber-400);
    flex-shrink: 0;
}

.contact-item h4 {
    color: white;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9375rem;
    line-height: 1.6;
}

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

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

/* Contact Form */
.contact-form-wrapper {
    background: white;
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: var(--shadow-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--neutral-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 1px solid var(--neutral-300);
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--neutral-800);
    transition: var(--transition);
    background: var(--neutral-50);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--plum-muted);
    box-shadow: 0 0 0 3px rgba(142, 123, 150, 0.2);
    background: white;
}

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

.form-success {
    display: none;
    text-align: center;
    padding: 2rem;
}

.form-success.show {
    display: block;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: #ecfdf5;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: #10b981;
}

.form-success h4 {
    color: var(--neutral-900);
    margin-bottom: 0.5rem;
}

.form-success p {
    color: var(--neutral-600);
}

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

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

.footer-logo .logo-mark {
    color: var(--amber-400);
}

.footer-logo .logo-text {
    color: white;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    margin-top: 1rem;
    font-size: 0.9375rem;
}

.footer-links h4,
.footer-contact h4 {
    color: white;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    transition: var(--transition);
}

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

.footer-contact p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    margin-bottom: 0.25rem;
}

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

.footer-contact a:hover {
    color: var(--amber-300);
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 968px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-image {
        order: -1;
    }
    
    .about-img {
        height: 350px;
    }
    
    .about-accent {
        width: 120px;
        height: 120px;
        bottom: -10px;
        right: -10px;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 640px) {
    .hero-content {
        padding: 7rem 1.5rem 3rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .services,
    .about,
    .projects,
    .contact {
        padding: 4rem 0;
    }
    
    .section-header {
        margin-bottom: 2.5rem;
    }
    
    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        padding-top: 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;
    }
}