/* ==========================================================================
   IRON & OAK STUDIO - PREMIUM BRAND STYLE SHEET
   ========================================================================== */

/* --- Design Variables & System Tokens --- */
:root {
    /* Color Palette */
    --color-bg-deep: #080809;       /* Pitch obsidian */
    --color-bg-card: #111114;       /* Slate charcoal */
    --color-bg-card-hover: #16161C; /* Lighter slate with steel blue tint */
    --color-text-main: #ECECEE;     /* Pure warm off-white */
    --color-text-muted: #94949C;    /* Muted industrial steel grey */
    --color-text-dark: #0F0F11;     /* Dark obsidian contrast text */
    
    /* Accents & Brand Signatures */
    --color-accent: #E88C15;        /* Molten amber/copper */
    --color-accent-rgb: 232, 140, 21;
    --color-accent-light: #F2A33A;  /* Hot timber glowing accent */
    --color-border: rgba(255, 255, 255, 0.08); /* Micro steel separator */
    --color-border-glow: rgba(232, 140, 21, 0.3);
    
    /* System Properties */
    --font-heading: 'Syne', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    --transition-quick: all 0.2s ease-out;
    --shadow-premium: 0 16px 40px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 8px 30px rgba(232, 140, 21, 0.15);
    
    /* Layout Containers */
    --container-width: 1240px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-bg-deep);
    color: var(--color-text-main);
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-quick);
}

ul, ol {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    background: none;
    border: none;
    outline: none;
    color: inherit;
}

/* --- Scrollbar Customization --- */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-deep);
}
::-webkit-scrollbar-thumb {
    background: #252528;
    border: 2px solid var(--color-bg-deep);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* --- Global Scroll Progress Bar --- */
.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    z-index: 10000;
    width: 0%;
    transition: width 0.1s ease-out;
}

/* --- Shared Layout & Structure Utilities --- */
.section-container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 100px 24px;
}

/* Headings Structure */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: 1.15;
    font-weight: 700;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(2rem, 3.5vw, 3rem);
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    letter-spacing: -0.01em;
}

/* Base Buttons Design */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 14px 28px;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background: var(--color-accent-light);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-text-main);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

/* --- Interactive Navigation Header --- */
.main-nav {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    transition: var(--transition-smooth);
}

.main-nav.sticky-header {
    position: fixed;
    background: rgba(8, 8, 9, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    animation: slideDown 0.4s ease-out;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

/* Creative Logo Design */
.brand-logo {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    letter-spacing: -0.01em;
}

.logo-metal {
    color: var(--color-text-main);
}

.logo-divider {
    color: var(--color-accent);
    margin: 0 4px;
    font-size: 1.4rem;
}

.logo-wood {
    color: var(--color-accent-light);
}

/* Links List */
.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--color-text-main);
}

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

.nav-menu ul li a.contact-btn {
    background: rgba(232, 140, 21, 0.1);
    color: var(--color-accent);
    border: 1px solid rgba(232, 140, 21, 0.3);
    padding: 10px 20px;
    border-radius: 4px;
    transition: var(--transition-smooth);
}

.nav-menu ul li a.contact-btn::after {
    display: none;
}

.nav-menu ul li a.contact-btn:hover {
    background: var(--color-accent);
    color: var(--color-text-dark);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

/* Mobile Toggle Hamburger */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 28px;
    cursor: pointer;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text-main);
    transition: var(--transition-smooth);
}

/* --- Hero Section Design --- */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    background-color: var(--color-bg-deep);
    overflow: hidden;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.22;
    z-index: 1;
    filter: saturate(0.65) contrast(1.15);
}

/* Hero Vignette */
.hero-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 30%, transparent 20%, var(--color-bg-deep) 90%),
                linear-gradient(180deg, transparent 70%, var(--color-bg-deep) 100%);
    z-index: 2;
}

.hero-grid {
    position: relative;
    z-index: 3;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    padding: 8px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-accent);
    margin-bottom: 24px;
}

.hero-title .highlight-text {
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    margin-top: 24px;
    margin-bottom: 40px;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

/* Glassmorphic Asymmetric Featured Card */
.hero-featured-card {
    display: flex;
    justify-content: flex-end;
}

.card-glass {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 32px;
    max-width: 380px;
    box-shadow: var(--shadow-premium);
    position: relative;
    transition: var(--transition-smooth);
}

.card-glass::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-accent);
    border-radius: 8px 0 0 8px;
}

.card-glass:hover {
    transform: translateY(-5px);
    border-color: rgba(232, 140, 21, 0.2);
}

.card-meta {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    margin-bottom: 12px;
    display: block;
}

.card-glass h3 {
    margin-bottom: 12px;
    font-weight: 700;
}

.card-glass p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
}

.card-footer .location {
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.card-arrow {
    width: 32px;
    height: 32px;
    background: var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--color-text-main);
    transition: var(--transition-quick);
}

.card-glass:hover .card-arrow {
    background: var(--color-accent);
    color: var(--color-text-dark);
}

/* Scroll indicator mouse */
.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    opacity: 0.6;
}

.hero-scroll-indicator span {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    font-weight: 600;
}

.mouse-icon {
    width: 24px;
    height: 38px;
    border: 2px solid var(--color-text-muted);
    border-radius: 50px;
    position: relative;
}

.mouse-icon .wheel {
    width: 4px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 50px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollMouse 1.8s infinite ease-in-out;
}

/* --- Stats Section --- */
.stats-section {
    background-color: #0c0c0e;
    border-y: 1px solid var(--color-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-item {
    padding: 20px 0;
}

.stat-number-wrapper {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 800;
    line-height: 1;
    margin-bottom: 8px;
    color: var(--color-text-main);
}

.stat-num {
    background: linear-gradient(135deg, var(--color-text-main) 30%, var(--color-accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-plus {
    color: var(--color-accent);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* --- Philosophy / About Section --- */
.about-section {
    background: var(--color-bg-deep);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 80px;
    align-items: center;
}

.about-visual .image-box {
    position: relative;
    border-radius: 4px;
    overflow: visible;
}

.about-visual img {
    width: 100%;
    height: 480px;
    border-radius: 4px;
    box-shadow: var(--shadow-premium);
    filter: grayscale(0.2) contrast(1.05);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--color-accent);
    color: var(--color-text-dark);
    padding: 24px;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow-glow);
    animation: floatAnim 4s infinite ease-in-out;
}

.experience-badge strong {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1;
}

.experience-badge span {
    font-size: 0.7rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.section-tag {
    color: var(--color-accent);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 12px;
    display: block;
}

.lead-text {
    font-size: 1.2rem;
    color: var(--color-text-main);
    line-height: 1.5;
    margin-bottom: 24px;
    font-weight: 500;
}

.body-text {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 32px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-bullet {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.feature-bullet i {
    font-size: 1.4rem;
    color: var(--color-accent);
    background: rgba(232, 140, 21, 0.08);
    width: 44px;
    height: 44px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(232, 140, 21, 0.15);
    flex-shrink: 0;
}

.feature-bullet h4 {
    font-size: 1.05rem;
    margin-bottom: 4px;
    color: var(--color-text-main);
}

.feature-bullet p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* --- Services / Capabilities Section --- */
.services-section {
    background-color: #0b0b0d;
    border-top: 1px solid var(--color-border);
}

.center-align {
    text-align: center;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 16px auto 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.service-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: 48px 40px;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-smooth);
}

.service-icon {
    font-size: 2.2rem;
    color: var(--color-accent);
    margin-bottom: 28px;
    display: inline-block;
}

.service-card h3 {
    margin-bottom: 16px;
    font-weight: 700;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.service-list li {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text-main);
}

.service-list li i {
    color: var(--color-accent);
    font-size: 0.8rem;
}

/* Service Glow on Hover */
.service-bg-glow {
    position: absolute;
    bottom: -60px;
    right: -60px;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(232, 140, 21, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-8px);
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-glow);
    box-shadow: var(--shadow-premium);
}

.service-card:hover::after {
    transform: scaleX(1);
}

.service-card:hover .service-bg-glow {
    transform: scale(1.4);
    background: radial-gradient(circle, rgba(232, 140, 21, 0.15) 0%, transparent 70%);
}

/* --- Bespoke Cost Estimator Section --- */
.estimator-section {
    background: var(--color-bg-deep);
}

.estimator-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 80px;
    align-items: center;
}

.estimator-metrics {
    display: flex;
    gap: 40px;
    margin-top: 32px;
    margin-bottom: 32px;
}

.metric {
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-text-main);
}

.metric-unit {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.calc-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    background: rgba(255, 255, 255, 0.03);
    padding: 10px 16px;
    border-radius: 4px;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.calc-badge i {
    color: var(--color-accent);
}

/* Estimator Interactive Card */
.estimator-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: var(--shadow-premium);
}

.calc-header {
    background: #17171c;
    padding: 32px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.calc-header h3 {
    font-size: 1.1rem;
    color: var(--color-text-main);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.price-display {
    text-align: right;
}

.price-val {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--color-accent);
}

.currency {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-accent);
    vertical-align: super;
}

.price-range {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: -2px;
}

.calc-form {
    padding: 32px;
}

.calc-field {
    margin-bottom: 24px;
}

.calc-field label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 10px;
}

.calc-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 12px 16px;
    color: var(--color-text-main);
    font-size: 0.9rem;
    transition: var(--transition-quick);
}

.calc-input:focus {
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.05);
}

/* Styled HTML Option inside select */
.calc-input option {
    background-color: var(--color-bg-card);
    color: var(--color-text-main);
}

/* Custom Slider Styling */
.slider-labels {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.slider-labels span {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-accent);
}

.calc-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    outline: none;
    margin-top: 10px;
}

.calc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: pointer;
    border: 4px solid var(--color-bg-card);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    transition: transform 0.1s;
}

.calc-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    background: var(--color-accent-light);
}

/* Radio Tiles for Hardwood */
.calc-radio-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.radio-tile {
    cursor: pointer;
    position: relative;
}

.radio-tile input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.tile-content {
    display: flex;
    flex-direction: column;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.02);
    text-align: center;
    transition: var(--transition-quick);
}

.tile-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-main);
}

.tile-desc {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.radio-tile input:checked + .tile-content {
    border-color: var(--color-accent);
    background: rgba(232, 140, 21, 0.05);
}

.radio-tile:hover .tile-content {
    border-color: rgba(255, 255, 255, 0.2);
}

/* --- Showcase Portfolio Section --- */
.portfolio-section {
    background-color: #0c0c0e;
    border-top: 1px solid var(--color-border);
}

.portfolio-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 48px;
    flex-wrap: wrap;
    gap: 24px;
}

.portfolio-filters {
    display: flex;
    gap: 12px;
}

.filter-btn {
    padding: 8px 18px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 30px;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition-quick);
}

.filter-btn:hover {
    color: var(--color-text-main);
    border-color: var(--color-text-main);
}

.filter-btn.active {
    background: var(--color-text-main);
    color: var(--color-text-dark);
    border-color: var(--color-text-main);
}

/* Portfolio Masonry Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.portfolio-item {
    display: none;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.portfolio-item.show {
    display: block;
    opacity: 1;
    transform: scale(1);
}

.portfolio-image-wrapper {
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: var(--shadow-premium);
}

.portfolio-image-wrapper img {
    width: 100%;
    height: 100%;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Hover Overlays */
.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 40%, rgba(8, 8, 9, 0.95) 100%);
    opacity: 0;
    display: flex;
    align-items: flex-end;
    padding: 32px;
    transition: var(--transition-smooth);
}

.overlay-details {
    transform: translateY(20px);
    transition: var(--transition-smooth);
}

.proj-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
    display: block;
}

.portfolio-overlay h3 {
    margin-bottom: 8px;
    color: var(--color-text-main);
}

.portfolio-overlay p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.proj-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent-light);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.proj-link i {
    transition: var(--transition-quick);
}

.proj-link:hover i {
    transform: translateX(4px);
}

/* Item hover states */
.portfolio-item:hover .portfolio-image-wrapper img {
    transform: scale(1.08);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

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

/* --- Testimonials Section --- */
.testimonials-section {
    background: var(--color-bg-deep);
    border-top: 1px solid var(--color-border);
}

.testimonials-carousel-wrapper {
    max-width: 800px;
    margin: 60px auto 0;
    position: relative;
}

.testimonials-slider {
    position: relative;
    min-height: 220px;
}

.testimonial-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    transform: translateX(30px);
    pointer-events: none;
    transition: opacity 0.5s ease, transform 0.5s ease;
    text-align: center;
}

.testimonial-slide.active {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
    position: relative;
}

.quote-icon {
    font-size: 2.2rem;
    color: var(--color-accent);
    opacity: 0.25;
    margin-bottom: 16px;
}

.quote-text {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    line-height: 1.5;
    font-style: italic;
    color: var(--color-text-main);
    margin-bottom: 24px;
    font-weight: 400;
}

.client-info strong {
    display: block;
    font-size: 1rem;
    color: var(--color-text-main);
}

.client-info span {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* Carousel Control Elements */
.carousel-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
}

.carousel-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: var(--transition-quick);
}

.carousel-btn:hover {
    color: var(--color-text-main);
    border-color: var(--color-text-main);
    background: rgba(255, 255, 255, 0.02);
}

.carousel-indicators {
    display: flex;
    gap: 10px;
}

.carousel-indicators .indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #252528;
    cursor: pointer;
    transition: var(--transition-quick);
}

.carousel-indicators .indicator.active {
    background: var(--color-accent);
    transform: scale(1.25);
}

/* --- Interactive Contact & Booking Section --- */
.contact-section {
    background-color: #0b0b0d;
    border-top: 1px solid var(--color-border);
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 80px;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-top: 40px;
    margin-bottom: 40px;
}

.info-item {
    display: flex;
    gap: 20px;
    align-items: center;
}

.info-item .icon-box {
    width: 48px;
    height: 48px;
    border-radius: 4px;
    background: rgba(232, 140, 21, 0.08);
    border: 1px solid rgba(232, 140, 21, 0.15);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.info-item .text-box span {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    font-weight: 500;
}

.info-item .text-box strong {
    font-size: 1.05rem;
    color: var(--color-text-main);
}

.showroom-hours {
    border-top: 1px solid var(--color-border);
    padding-top: 30px;
}

.showroom-hours h4 {
    font-size: 0.9rem;
    color: var(--color-text-main);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.showroom-hours ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.showroom-hours li {
    font-size: 0.85rem;
    display: flex;
    justify-content: space-between;
    max-width: 320px;
    color: var(--color-text-muted);
}

.showroom-hours li strong {
    color: var(--color-text-main);
}

/* High-End Booking Form Card */
.contact-form-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: 40px;
    border-radius: 4px;
    box-shadow: var(--shadow-premium);
    position: relative;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-group {
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.form-input {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 12px 16px;
    color: var(--color-text-main);
    font-size: 0.9rem;
    transition: var(--transition-quick);
}

.form-input:focus {
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.05);
}

textarea.form-input {
    resize: none;
    font-family: inherit;
}

/* Interactive Tags in Form */
.scope-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 6px;
}

.scope-tag {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    padding: 8px 16px;
    font-size: 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition-quick);
}

.scope-tag:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.scope-tag.active {
    background: rgba(232, 140, 21, 0.1);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* Form Success Overlay */
.form-success-message {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg-card);
    z-index: 10;
    border-radius: 4px;
    padding: 40px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    animation: fadeIn 0.4s ease-out;
}

.form-success-message i {
    font-size: 3.5rem;
    color: #10B981;
    margin-bottom: 20px;
}

.form-success-message h4 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.form-success-message p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    max-width: 320px;
}

/* --- Footer Design --- */
.footer-section {
    background-color: var(--color-bg-deep);
    border-top: 1px solid var(--color-border);
    padding-top: 80px;
    padding-bottom: 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr 0.7fr 1.3fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-brand .brand-logo {
    margin-bottom: 20px;
}

.footer-desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 38px;
    height: 38px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
}

.social-links a:hover {
    color: var(--color-accent);
    background: rgba(232, 140, 21, 0.08);
    border-color: rgba(232, 140, 21, 0.3);
    transform: translateY(-2px);
}

.footer-links h4, .footer-newsletter h4 {
    font-size: 0.85rem;
    color: var(--color-text-main);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 24px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.footer-links a:hover {
    color: var(--color-accent);
    padding-left: 4px;
}

.footer-newsletter p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.02);
}

.newsletter-input {
    flex-grow: 1;
    padding: 12px 16px;
    font-size: 0.85rem;
    color: var(--color-text-main);
}

.newsletter-input::placeholder {
    color: #4a4a4f;
}

.newsletter-btn {
    background: var(--color-accent);
    color: var(--color-text-dark);
    padding: 0 16px;
    cursor: pointer;
    transition: var(--transition-quick);
}

.newsletter-btn:hover {
    background: var(--color-accent-light);
}

.newsletter-success {
    display: none;
    margin-top: 8px;
    font-size: 0.8rem;
    color: #10B981;
    font-weight: 500;
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a:hover {
    color: var(--color-text-main);
}

/* --- Interactive Micro-Animations & Reveals --- */

/* Native IntersectionObserver Classes */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), 
                transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

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

/* Delays for children lists */
.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }

/* Custom Keyframes */
@keyframes slideDown {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}

@keyframes scrollMouse {
    0% { top: 6px; opacity: 1; }
    50% { top: 16px; opacity: 0; }
    100% { top: 6px; opacity: 1; }
}

@keyframes floatAnim {
    0% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
    100% { transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ==========================================================================
   RESPONSIVE DESIGN BREAKPOINTS
   ========================================================================== */

/* Tablet (Large Portables) */
@media (max-width: 1024px) {
    :root {
        --header-height: 70px;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-featured-card {
        justify-content: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .about-visual img {
        height: 380px;
    }
    
    .services-grid {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    
    .estimator-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .footer-grid {
        grid-template-columns: 1.2fr 0.8fr 0.8fr;
    }
    
    .footer-newsletter {
        grid-column: span 3;
    }
}

/* Small Devices (Mobile Phones) */
@media (max-width: 768px) {
    /* Mobile Menu Drawer Toggle */
    .mobile-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: var(--color-bg-deep);
        padding: 40px 24px;
        transition: var(--transition-smooth);
        border-top: 1px solid var(--color-border);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu ul {
        flex-direction: column;
        align-items: stretch;
        gap: 28px;
    }
    
    .nav-link {
        font-size: 1.2rem;
        font-family: var(--font-heading);
        display: block;
        padding: 10px 0;
    }
    
    .nav-menu ul li a.contact-btn {
        text-align: center;
        margin-top: 20px;
    }
    
    /* Hamburger Active Animation */
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 5px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -5px);
    }
    
    /* Sections Grid Restructures */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .calc-radio-group {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-newsletter {
        grid-column: span 1;
    }
    
    .footer-bottom {
        flex-direction: column-reverse;
        text-align: center;
        gap: 20px;
    }
}