/* ==========================================================================
   PS Groups - Corporate Industrial Design System (Premium Edition)
   ========================================================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* --- Root Variables & Design Tokens --- */
:root {
    /* Color Palette - Premium Steel & Safety Amber-Orange */
    --color-primary: #0A192F;       /* Deep Obsidian Navy */
    --color-primary-light: #172A45; /* Steel Blue-Navy */
    --color-secondary: #F26419;     /* Safety Amber-Orange */
    --color-secondary-hover: #E04E0C;
    --color-accent: #3A86FF;        /* Electric Accent Blue */
    --color-bg-light: #F4F7FA;      /* Sophisticated Light Grey */
    --color-bg-dark: #070D19;       /* Near Obsidian Dark */
    --color-text-dark: #1E293B;     /* Charcoal Slate */
    --color-text-light: #F8FAFC;    /* Off White */
    --color-text-muted: #64748B;    /* Cool Grey */
    --color-white: #FFFFFF;
    --color-success: #10B981;       /* Active Green */
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0A192F 0%, #172A45 100%);
    --gradient-accent: linear-gradient(135deg, #F26419 0%, #FF9E00 100%);
    --gradient-hero: linear-gradient(135deg, rgba(10, 25, 47, 0.96) 0%, rgba(23, 42, 69, 0.88) 50%, rgba(10, 25, 47, 0.4) 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
    --gradient-card-dark: linear-gradient(135deg, #172A45 0%, #0A192F 100%);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Shadows - Soft, Elegant & Modern */
    --shadow-sm: 0 4px 10px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 10px 30px rgba(10, 25, 47, 0.06);
    --shadow-lg: 0 20px 50px rgba(10, 25, 47, 0.12);
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
    --shadow-orange: 0 10px 20px rgba(242, 100, 25, 0.2);
    
    /* Transitions */
    --transition-fast: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-pill: 9999px;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--color-text-dark);
    background-color: var(--color-white);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

h1 { font-weight: 800; }
h2 { font-size: 2.5rem; font-weight: 800; position: relative; }

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

ul {
    list-style: none;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--color-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--color-secondary);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-pill);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-white);
}

/* --- Layout Utilities --- */
.container {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 2rem;
}

.py-section { padding: 8rem 0; }
.py-5 { padding: 4rem 0; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3.5rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3.5rem; }
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.text-white { color: var(--color-white); }
.text-light { color: rgba(255, 255, 255, 0.85); }
.text-primary { color: var(--color-primary); }
.bg-light { background-color: var(--color-bg-light); }
.bg-dark { background-color: var(--color-bg-dark); }
.max-w-700 { max-width: 700px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.hidden { display: none !important; }

/* Text Gradient Effect */
.text-gradient {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.subtitle {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: 0.75rem;
    position: relative;
    padding-left: 15px;
}

.subtitle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background-color: var(--color-secondary);
    border-radius: 50%;
}

.section-header {
    margin-bottom: 4rem;
}

.header-line {
    width: 60px;
    height: 4px;
    background: var(--gradient-accent);
    margin: 1.5rem auto 0;
    border-radius: var(--radius-pill);
}

/* --- Premium Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.8rem;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-base);
    border: 2px solid transparent;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    gap: 0.5rem;
}

.btn-lg {
    padding: 1.1rem 2.8rem;
    font-size: 1.05rem;
    border-radius: var(--radius-sm);
}

.btn-sm {
    padding: 0.5rem 1.2rem;
    font-size: 0.85rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-orange);
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(242, 100, 25, 0.4);
    background: var(--color-secondary-hover);
}

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

.btn-outline:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline-dark:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.btn-light {
    background-color: var(--color-white);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.btn-light:hover {
    background: var(--gradient-accent);
    color: var(--color-white);
    transform: translateY(-4px);
    box-shadow: var(--shadow-orange);
}

/* --- Sticky Modern Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.8rem 0;
    transition: var(--transition-base);
    background: transparent;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 1rem 0;
    box-shadow: 0 10px 40px rgba(10, 25, 47, 0.06);
    border-bottom: 1px solid rgba(10, 25, 47, 0.08);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.65rem;
    font-weight: 900;
    letter-spacing: 1.5px;
    display: flex;
    align-items: center;
}

.logo-ps { color: var(--color-secondary); }
.logo-groups { color: var(--color-white); transition: var(--transition-fast); }

.logo img {
    filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.7));
    transition: var(--transition-fast);
}

.navbar.scrolled .logo img {
    filter: none;
}

.navbar.scrolled .logo-groups {
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    gap: 2.2rem;
    align-items: center;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition-fast);
}

.navbar.scrolled .nav-links a {
    color: var(--color-text-dark);
}

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

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

.nav-links a.active, .nav-links a:hover {
    color: var(--color-white);
}

.navbar.scrolled .nav-links a.active, 
.navbar.scrolled .nav-links a:hover {
    color: var(--color-secondary);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    padding: 0;
    font-size: 1.6rem;
    color: var(--color-white);
    cursor: pointer;
    transition: var(--transition-fast);
}

.hamburger:hover {
    color: var(--color-secondary);
}

.navbar.scrolled .hamburger {
    color: var(--color-primary);
}

.navbar.scrolled .hamburger:hover {
    color: var(--color-secondary);
}

/* --- Advanced Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 100px;
    background: var(--color-primary);
}

.hero-bg-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: opacity 1.5s ease-in-out;
    opacity: 0;
    transform: scale(1);
    animation: zoomHeroBg 25s infinite alternate linear;
}

.hero-bg.active {
    opacity: 1;
}

@keyframes zoomHeroBg {
    0% { transform: scale(1); }
    100% { transform: scale(1.12); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    z-index: 1;
}

/* Animated Tech Grid Overlay */
.hero-grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.25;
    background-image:
        linear-gradient(rgba(242, 100, 25, 0.15) 1px, transparent 1px),
        linear-gradient(90deg, rgba(242, 100, 25, 0.15) 1px, transparent 1px);
    background-size: 48px 48px;
    animation: driftGrid 30s linear infinite;
    mask-image: radial-gradient(ellipse 70% 60% at 30% 40%, black 0%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 30% 40%, black 0%, transparent 75%);
}

@keyframes driftGrid {
    0% { background-position: 0 0; }
    100% { background-position: 480px 480px; }
}

/* Drifting Ambient Particles */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.hero-particles span {
    position: absolute;
    bottom: -20px;
    width: 5px;
    height: 5px;
    background: var(--color-secondary);
    border-radius: 50%;
    opacity: 0;
    box-shadow: 0 0 8px 2px rgba(242, 100, 25, 0.6);
    animation: particleRise 14s linear infinite;
}

.hero-particles span:nth-child(1) { left: 8%; animation-delay: 0s; }
.hero-particles span:nth-child(2) { left: 22%; animation-delay: -3s; width: 3px; height: 3px; }
.hero-particles span:nth-child(3) { left: 41%; animation-delay: -7s; }
.hero-particles span:nth-child(4) { left: 63%; animation-delay: -2s; width: 4px; height: 4px; }
.hero-particles span:nth-child(5) { left: 78%; animation-delay: -9s; }
.hero-particles span:nth-child(6) { left: 92%; animation-delay: -5s; width: 3px; height: 3px; }

@keyframes particleRise {
    0% { transform: translateY(0) translateX(0); opacity: 0; }
    10% { opacity: 0.8; }
    50% { transform: translateY(-45vh) translateX(20px); }
    90% { opacity: 0.4; }
    100% { transform: translateY(-95vh) translateX(-10px); opacity: 0; }
}

/* Staggered Hero Entrance Animations */
.reveal-up {
    opacity: 0;
    transform: translateY(28px);
    animation: heroRevealUp 0.9s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.25s; }
.delay-3 { animation-delay: 0.4s; }
.delay-4 { animation-delay: 0.55s; }
.delay-5 { animation-delay: 0.7s; }

@keyframes heroRevealUp {
    to { opacity: 1; transform: translateY(0); }
}

/* Floating Technology Mesh Shapes */
.floating-shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-secondary) 0%, transparent 80%);
    opacity: 0.12;
    filter: blur(40px);
    animation: floatShape 15s infinite ease-in-out alternate;
    z-index: 1;
}

.shape-1 { width: 450px; height: 450px; top: -50px; left: -100px; }
.shape-2 { width: 550px; height: 550px; bottom: -150px; right: -100px; animation-delay: -5s; }
.shape-3 { width: 300px; height: 300px; top: 30%; right: 15%; background: linear-gradient(135deg, var(--color-accent) 0%, transparent 80%); animation-delay: -8s; }

@keyframes floatShape {
    0% { transform: translate(0, 0) rotate(0deg) scale(1); }
    100% { transform: translate(50px, 80px) rotate(90deg) scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-text {
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-pill);
    color: var(--color-white);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 2rem;
    backdrop-filter: blur(5px);
}

.hero-badge span {
    width: 8px;
    height: 8px;
    background-color: var(--color-success);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 10px var(--color-success);
}

.hero h3 {
    font-size: 2.8rem;
    color: var(--color-white);
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
    max-width: 650px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.hero-btns {
    display: flex;
    gap: 1.2rem;
}

/* Inline Glass Stat Strip within Hero */
.hero-stats-strip {
    display: flex;
    gap: 1.5rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.hero-stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    padding: 1rem 1.4rem;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: var(--transition-base);
}

.hero-stat-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(242, 100, 25, 0.4);
    transform: translateY(-4px);
}

.hero-stat-item i {
    font-size: 1.6rem;
    color: var(--color-secondary);
}

.hero-stat-number {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--color-white);
    line-height: 1;
}

.hero-stat-label {
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    line-height: 1.4;
    margin-top: 0.25rem;
}

/* Scroll Mouse Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-white);
    opacity: 0.8;
    z-index: 2;
    cursor: pointer;
}

.scroll-indicator p {
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 600;
    margin-top: 0.5rem;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-pill);
    margin: 0 auto;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: var(--color-secondary);
    border-radius: var(--radius-pill);
    animation: scrollDot 2s infinite ease-in-out;
}

@keyframes scrollDot {
    0% { opacity: 0; transform: translateX(-50%) translateY(0); }
    30% { opacity: 1; }
    80% { opacity: 0; transform: translateX(-50%) translateY(14px); }
    100% { opacity: 0; }
}

/* --- Trusted Mill Partners: Infinite Marquee --- */
.brands-section {
    background: var(--color-primary-light);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    z-index: 10;
    padding: 3rem 0 3.5rem;
    overflow: hidden;
}

.marquee-caption {
    text-align: center;
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.marquee-wrapper {
    overflow: hidden;
    -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
    mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}

.marquee-track {
    display: flex;
    gap: 1.5rem;
    width: max-content;
    animation: marqueeScroll 32s linear infinite;
}

.marquee-wrapper:hover .marquee-track {
    animation-play-state: paused;
}

@keyframes marqueeScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.brand-card {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: 1.5rem 2rem;
    white-space: nowrap;
    transition: var(--transition-base);
    flex-shrink: 0;
}

.brand-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(242, 100, 25, 0.3);
}

.brand-card i {
    font-size: 1.6rem;
    color: var(--color-secondary);
}

.brand-logo h3 {
    color: var(--color-white);
    opacity: 0.85;
    margin: 0;
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    transition: var(--transition-fast);
}

.brand-card:hover .brand-logo h3 {
    color: var(--color-secondary);
    opacity: 1;
}

.brand-logo small {
    color: rgba(255, 255, 255, 0.5);
}

/* --- Premium Product Showcase --- */
.products-section {
    background-color: var(--color-bg-light);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-slow);
    border: 1px solid rgba(0, 0, 0, 0.03);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
}

.product-img {
    position: relative;
    height: 260px;
    overflow: hidden;
    background-color: var(--color-primary);
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-card:hover .product-img img {
    transform: scale(1.1);
}

.product-card-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-pill);
    letter-spacing: 1px;
    text-transform: uppercase;
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 10;
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 25, 47, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-base);
    z-index: 5;
}

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

.product-info {
    padding: 2.2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-info h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
}

.product-info p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.product-link {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--color-secondary);
    gap: 0.5rem;
}

.product-link i {
    transition: var(--transition-fast);
}

.product-link:hover i {
    transform: translateX(5px);
}

/* --- Glassmorphic Estimator Dashboard --- */
.calculator-section {
    position: relative;
    overflow: hidden;
}

.calculator-wrapper {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1.25fr;
    gap: 4rem;
    background: rgba(10, 25, 47, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    padding: 4.5rem;
    box-shadow: var(--shadow-glass);
    color: var(--color-white);
}

.calc-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.calc-content h2 {
    color: var(--color-white);
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
}

.calc-features {
    margin-top: 2.5rem;
}

.calc-features li {
    font-size: 1.05rem;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.calc-features li i {
    font-size: 1.2rem;
}

.calc-form-container {
    background: var(--color-white);
    color: var(--color-text-dark);
    padding: 3.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 1.8rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.6rem;
    color: var(--color-primary-light);
}

.form-control {
    width: 100%;
    padding: 1rem 1.2rem;
    border: 2px solid #E2E8F0;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-dark);
    background-color: var(--color-white);
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 4px rgba(242, 100, 25, 0.12);
}

.calc-result {
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 2px dashed #E2E8F0;
    text-align: center;
    animation: fadeInUp 0.5s ease forwards;
}

.price-display {
    color: var(--color-secondary);
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 3.2rem;
    margin: 0.5rem 0;
    line-height: 1.1;
}

.price-display .currency {
    font-size: 2rem;
    font-weight: 800;
    vertical-align: super;
    margin-right: 4px;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Brand Features (Why Choose Us) --- */
.feature-card {
    background: var(--color-white);
    padding: 3.5rem 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.02);
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 75px;
    height: 75px;
    background: rgba(242, 100, 25, 0.08);
    color: var(--color-secondary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    margin-bottom: 2rem;
    transition: var(--transition-base);
}

.feature-card:hover .feature-icon {
    background: var(--gradient-accent);
    color: var(--color-white);
    transform: rotateY(360deg);
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* --- Interactive Mega CTA Section --- */
.cta-section {
    background: var(--gradient-primary);
    padding: 8rem 0;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(242, 100, 25, 0.15) 0%, transparent 70%);
    top: -300px;
    right: -200px;
    border-radius: 50%;
}

.cta-section h2 {
    color: var(--color-white);
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

/* --- Clean Corporate Footer --- */
.footer {
    background-color: var(--color-bg-light);
    color: var(--color-text-dark);
    border-top: 1px solid #E2E8F0;
}

.footer-logo {
    display: inline-flex;
    margin-bottom: 1.5rem;
}

.footer .logo-groups {
    color: var(--color-primary);
}

.footer h3 {
    color: var(--color-primary);
    font-size: 1.25rem;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 0.75rem;
}

.footer h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 35px;
    height: 3px;
    background-color: var(--color-secondary);
    border-radius: var(--radius-pill);
}

.footer ul li {
    margin-bottom: 1rem;
}

.footer ul a {
    color: var(--color-text-muted);
    display: inline-flex;
    align-items: center;
    transition: var(--transition-fast);
}

.footer ul a:hover {
    color: var(--color-secondary);
    transform: translateX(6px);
}

.contact-col li {
    display: flex;
    gap: 1.2rem;
    align-items: flex-start;
    margin-bottom: 1.2rem;
    color: var(--color-text-dark);
}

.contact-col i {
    color: var(--color-secondary);
    font-size: 1.1rem;
    margin-top: 4px;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-links a {
    width: 44px;
    height: 44px;
    background: var(--color-white);
    border: 1px solid #E2E8F0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--color-primary);
    transition: var(--transition-base);
}

.social-links a:hover {
    background: var(--gradient-accent);
    border-color: transparent;
    transform: translateY(-4px);
    box-shadow: var(--shadow-orange);
    color: var(--color-white);
}

.footer-bottom {
    padding: 2.5rem 0;
    border-top: 1px solid #E2E8F0;
    color: var(--color-text-muted);
}

/* --- Elegant Floating WhatsApp Widget --- */
.floating-wa {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: var(--color-white);
    width: 65px;
    height: 65px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.35);
    z-index: 999;
    transition: var(--transition-base);
}

.floating-wa:hover {
    transform: scale(1.1) rotate(15deg);
}

.pulse {
    animation: pulse-ring 2.2s infinite;
}

@keyframes pulse-ring {
    0% { box-shadow: 0 0 0 0 rgba(242, 100, 25, 0.6); }
    70% { box-shadow: 0 0 0 18px rgba(242, 100, 25, 0); }
    100% { box-shadow: 0 0 0 0 rgba(242, 100, 25, 0); }
}

/* --- Custom Magnetic Mouse Cursor --- */
@media (pointer: fine) {
    body, a, button, input, select, textarea, .gallery-item, .filter-btn, .hamburger {
        cursor: none !important;
    }
}

.cursor-dot, .cursor-outline {
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    z-index: 99999;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-secondary);
}

.cursor-outline {
    width: 36px;
    height: 36px;
    border: 2px solid var(--color-secondary);
    transition: width 0.25s, height 0.25s, background-color 0.25s, border-color 0.25s;
}

.cursor-hover {
    width: 58px;
    height: 58px;
    background-color: rgba(242, 100, 25, 0.15);
    border-color: var(--color-secondary);
}

/* --- Internal Pages Common Header --- */
.page-header {
    position: relative;
    padding: 11rem 0 7rem;
    background-color: var(--color-primary); 
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--color-white);
    text-align: center;
    overflow: hidden;
    z-index: 1;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(10, 25, 47, 0.98) 0%, rgba(23, 42, 69, 0.9) 100%);
    z-index: -1;
}

.page-header h1 {
    font-size: 3.8rem;
    color: var(--color-white);
    font-weight: 800;
}

/* --- About Page Specifics --- */
.about-split {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 5rem;
    align-items: center;
}

.about-img {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

/* Timeline Layout */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 4rem auto 0;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    background: var(--color-primary-light);
    transform: translateX(-50%);
    border-radius: var(--radius-pill);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    width: 50%;
    padding-right: 4rem;
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 4rem;
}

.timeline-dot {
    position: absolute;
    right: -10px;
    top: 8px;
    width: 20px;
    height: 20px;
    background: var(--color-white);
    border: 4px solid var(--color-secondary);
    border-radius: 50%;
    z-index: 10;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px;
    right: auto;
}

.timeline-content {
    background: var(--color-white);
    padding: 2.2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0,0,0,0.03);
    transition: var(--transition-base);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(242, 100, 25, 0.2);
}

.timeline-content h3 {
    font-size: 1.6rem;
    color: var(--color-secondary);
    margin-bottom: 0.5rem;
}

/* --- Services Page Specifics --- */
.service-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
    margin-bottom: 8rem;
}

.service-row:last-child {
    margin-bottom: 0;
}

.service-row:nth-child(even) .service-content {
    order: 2;
}

.service-row:nth-child(even) .service-img {
    order: 1;
}

.service-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.service-icon-badge {
    position: absolute;
    top: 25px;
    right: 25px;
    width: 65px;
    height: 65px;
    background: var(--gradient-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.65rem;
    box-shadow: var(--shadow-lg);
}

/* --- Tamil Features & Advantage Section Styles --- */
.tamil-blessing-banner {
    background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
    color: var(--color-white);
    padding: 0.8rem 1.5rem;
    border-radius: var(--radius-pill);
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(242, 100, 25, 0.3);
}

.tamil-subtitle-badge {
    display: inline-block;
    background: rgba(242, 100, 25, 0.1);
    color: var(--color-secondary);
    font-weight: 700;
    padding: 0.3rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 0.6rem;
    border-left: 3px solid var(--color-secondary);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.8rem;
    margin: 3.5rem 0 5rem;
}

.advantage-card {
    background: var(--color-white);
    padding: 2.2rem 1.8rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--color-secondary);
    transition: var(--transition-base);
    text-align: center;
}

.advantage-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.advantage-card .adv-icon {
    width: 60px;
    height: 60px;
    background: rgba(242, 100, 25, 0.1);
    color: var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1.2rem;
}

.advantage-card h4 {
    font-size: 1.15rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.advantage-card p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* --- Projects Page Specifics --- */
.project-card {
    border: none;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-slow);
    height: 100%;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.project-img-wrapper {
    position: relative;
    height: 270px;
    overflow: hidden;
}

.project-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.project-card:hover .project-img-wrapper img {
    transform: scale(1.1);
}

.project-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--gradient-accent);
    color: var(--color-white);
    padding: 0.35rem 1.2rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    z-index: 10;
    text-transform: uppercase;
}

.project-body {
    padding: 2.2rem;
    background: var(--color-white);
}

.project-title {
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-weight: 800;
    font-size: 1.35rem;
    margin-bottom: 0.8rem;
}

.project-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.2rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.project-meta i {
    color: var(--color-secondary);
    margin-right: 6px;
}

/* --- Gallery Page Specifics --- */
.filter-btns {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 2px solid var(--color-primary-light);
    color: var(--color-primary-light);
    padding: 0.6rem 1.8rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: var(--transition-base);
}

.filter-btn.active, .filter-btn:hover {
    background: var(--gradient-accent);
    border-color: transparent;
    color: var(--color-white);
    box-shadow: var(--shadow-orange);
}

.gallery-search-box {
    max-width: 480px;
    margin: 0 auto 2.5rem;
    position: relative;
}

.gallery-search-box input {
    width: 100%;
    padding: 0.9rem 1.2rem 0.9rem 3.2rem;
    border-radius: var(--radius-pill);
    border: 2px solid rgba(10, 25, 47, 0.12);
    font-family: var(--font-body);
    font-size: 0.95rem;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

.gallery-search-box input:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 4px rgba(242, 100, 25, 0.15);
}

.gallery-search-box i {
    position: absolute;
    left: 1.3rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: 1.05rem;
}

.gallery-counter-badge {
    text-align: center;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
}

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

.gallery-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    cursor: pointer;
    aspect-ratio: 4/3;
    box-shadow: var(--shadow-md);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease, box-shadow 0.4s ease;
    background-color: var(--color-primary-light);
}

.gallery-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-cat-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: rgba(10, 25, 47, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--color-white);
    padding: 0.35rem 0.9rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    z-index: 5;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.gallery-zoom-icon {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 38px;
    height: 38px;
    background: var(--gradient-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    opacity: 0;
    transform: scale(0.7);
    transition: var(--transition-base);
    z-index: 5;
    box-shadow: var(--shadow-orange);
}

.gallery-item:hover .gallery-zoom-icon {
    opacity: 1;
    transform: scale(1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(10, 25, 47, 0) 35%, rgba(10, 25, 47, 0.92) 85%);
    padding: 1.8rem 1.5rem;
    color: var(--color-white);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    opacity: 0.92;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
    background: linear-gradient(180deg, rgba(10, 25, 47, 0.15) 20%, rgba(10, 25, 47, 0.96) 80%);
}

.gallery-overlay h4 {
    color: var(--color-white);
    font-size: 1.15rem;
    margin-bottom: 0.35rem;
    line-height: 1.35;
    font-weight: 700;
}

.gallery-overlay p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.85rem;
    line-height: 1.45;
    margin-bottom: 0;
}

/* Lightbox overlay */
.lightbox {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(7, 13, 25, 0.95);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
    backdrop-filter: blur(10px);
}

.lightbox.active {
    opacity: 1;
    pointer-events: all;
}

.lightbox-content-wrapper {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox img {
    max-width: 100%;
    max-height: 72vh;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox-caption {
    color: var(--color-white);
    margin-top: 1.2rem;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    text-align: center;
    max-width: 750px;
}

.lightbox-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: none;
    border: none;
    padding: 0;
    color: var(--color-white);
    font-size: 2.5rem;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition-fast);
}

.lightbox-close:hover {
    color: var(--color-secondary);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 0;
    color: var(--color-white);
    font-size: 3rem;
    cursor: pointer;
    transition: var(--transition-fast);
    user-select: none;
}

.lightbox-nav:hover {
    color: var(--color-secondary);
}

.lightbox-prev {
    left: -80px;
}

.lightbox-next {
    right: -80px;
}

/* --- Contact Page Specifics --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.35fr;
    gap: 5rem;
}

.contact-info-card {
    background: var(--gradient-card-dark);
    color: var(--color-white);
    padding: 4.5rem 3.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255,255,255,0.05);
}

.contact-info-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    align-items: flex-start;
}

.contact-info-item i {
    font-size: 1.6rem;
    color: var(--color-secondary);
    margin-top: 4px;
}

.contact-info-item h4 {
    color: var(--color-white);
    font-size: 1.15rem;
    margin-bottom: 0.4rem;
}

.contact-info-item p, .contact-info-item a {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.95rem;
}

.contact-form-container {
    background: var(--color-white);
    padding: 4.5rem 3.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid #E2E8F0;
}

.contact-form-container h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.map-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 480px;
    margin-top: 5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid #E2E8F0;
}

textarea.form-control {
    resize: vertical;
    min-height: 140px;
}

/* --- Responsive Layout Breakpoints --- */

/* Mobile Menu Slide-in Overlay */
.nav-links.mobile-active {
    display: flex !important;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    height: 100vh;
    background: var(--color-primary);
    padding: 6rem 3rem;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.35);
    gap: 2rem;
    text-align: left;
    align-items: flex-start;
    z-index: 999;
    animation: slideInRight 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.nav-links.mobile-active a {
    color: rgba(255, 255, 255, 0.9) !important;
}

.nav-links.mobile-active a:hover,
.nav-links.mobile-active a.active {
    color: var(--color-secondary) !important;
}

@keyframes slideInRight {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

@media (max-width: 1200px) {
    h2 { font-size: 2.2rem; }
    .hero h1 { font-size: 4rem; }
    .calculator-wrapper { padding: 3rem; gap: 2.5rem; }
    .contact-grid { gap: 3rem; }
}

@media (max-width: 1024px) {
    .nav-links { display: none; }
    .hamburger { display: block; }
    
    .hero h1 { font-size: 3.5rem; }
    .hero-stats-strip { gap: 1rem; }
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .calculator-wrapper { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .page-header h1 { font-size: 3.2rem; }
    .lightbox-prev { left: -50px; }
    .lightbox-next { right: -50px; }
}

@media (max-width: 768px) {
    .py-section { padding: 5rem 0; }
    .hero h1 { font-size: 2.8rem; }
    .hero p { font-size: 1.1rem; }
    .hero-btns { flex-direction: column; }
    .hero-btns .btn { width: 100%; }
    .hero-stats-strip { flex-direction: column; align-items: stretch; margin-top: 2rem; }

    .about-split { grid-template-columns: 1fr; gap: 3rem; }
    .timeline::before { left: 20px; }
    .timeline-item { width: 100%; padding-left: 50px; padding-right: 0; margin-bottom: 3rem; }
    .timeline-item:nth-child(even) { margin-left: 0; padding-left: 50px; }
    .timeline-dot { left: 10px; right: auto; }
    .timeline-item:nth-child(even) .timeline-dot { left: 10px; }
    
    .service-row { grid-template-columns: 1fr; gap: 3.5rem; margin-bottom: 5rem; }
    .service-row:nth-child(even) .service-content { order: 1; }
    .service-row:nth-child(even) .service-img { order: 2; }
    
    .product-grid { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: 1fr; }
    .lightbox-nav { display: none; }
    .page-header { background-attachment: scroll; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.25rem; }
    .hero h1 { font-size: 2.3rem; }
    .page-header h1 { font-size: 2.5rem; }
    .calc-form-container { padding: 2rem; }
    .price-display { font-size: 2.5rem; }
    .contact-info-card { padding: 2.5rem 1.8rem; }
    .contact-form-container { padding: 2.5rem 1.8rem; }
}