/* 
========================================================================
   PH HOME INTERIORS - PREMIUM LIGHT THEME CSS
   Author: Antigravity (AI Coding Assistant)
   Colors: Crisp White, Soft Ice Blue, Royal Blue (Logo), Bright Gold (Logo)
   Fonts: Playfair Display (Headings), Plus Jakarta Sans (Body)
========================================================================
*/

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400..900;1,400..900&family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&display=swap');

/* --- Design Tokens & CSS Variables --- */
:root {
    /* Color Palette (Aligned with Logo) */
    --color-bg-light: #ffffff;
    --color-bg-light-sec: #f5f8fc; /* Very soft ice blue/grey */
    --color-bg-light-card: #ffffff;
    --color-bg-light-deep: #ebf1fa;
    
    --color-primary-blue: #004aad; /* Royal Blue from Logo */
    --color-primary-blue-hover: #003780;
    --color-primary-blue-light: rgba(0, 74, 173, 0.06);
    
    --color-accent-gold: #d4af37; /* Bright Gold from Logo */
    --color-accent-gold-hover: #c49e2b;
    --color-accent-gold-light: rgba(212, 175, 55, 0.1);
    --color-accent-gold-dark: #aa841c;
    
    --color-text-dark: #0f172a; /* Deep Navy Slate */
    --color-text-dark-muted: #475569; /* Slate Grey */
    --color-text-light: #ffffff;
    --color-text-light-muted: #cbd5e1;
    
    --color-success: #10b981;
    --color-border: rgba(0, 74, 173, 0.08);
    --color-border-hover: rgba(212, 175, 55, 0.4);
    
    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    
    /* Layout */
    --max-width: 1200px;
    --header-height: 85px;
    
    /* Effects & Animations */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 74, 173, 0.05);
    --glass-blur: 20px;
    
    --shadow-sm: 0 4px 20px rgba(0, 74, 173, 0.03);
    --shadow-md: 0 10px 35px rgba(0, 74, 173, 0.06);
    --shadow-lg: 0 20px 50px rgba(0, 74, 173, 0.1);
    --shadow-gold: 0 8px 25px rgba(212, 175, 55, 0.25);
    --shadow-blue: 0 8px 25px rgba(0, 74, 173, 0.2);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-light);
    color: var(--color-text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- Styled Custom Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-light-sec);
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-blue);
}

/* --- Typography Styles --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.010em;
    line-height: 1.25;
    color: var(--color-text-dark);
}

p {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-text-dark-muted);
}

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

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

ul {
    list-style: none;
}

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

.section {
    padding: 100px 0;
    position: relative;
}

.section-light {
    background-color: var(--color-bg-light);
}

.section-light-sec {
    background-color: var(--color-bg-light-sec);
}

/* For visual rhythm, we keep a couple of deep royal navy sections */
.section-dark-navy {
    background-color: #00224d;
    color: var(--color-text-light);
}

.section-dark-navy h2, 
.section-dark-navy h3, 
.section-dark-navy p {
    color: var(--color-text-light);
}

.section-dark-navy p {
    color: var(--color-text-light-muted);
}

.section-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 60px auto;
}

.section-subtitle {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent-gold-dark);
    font-weight: 700;
    margin-bottom: 12px;
    display: inline-block;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--color-accent-gold);
    margin: 15px auto 0 auto;
    border-radius: 2px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--color-text-dark-muted);
}

.section-dark-navy .section-desc {
    color: var(--color-text-light-muted);
}

/* --- Custom UI Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-smooth);
    border: none;
    gap: 8px;
}

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

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

.btn-accent {
    background-color: var(--color-accent-gold);
    color: var(--color-text-light);
    box-shadow: var(--shadow-sm);
}

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

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--color-primary-blue);
    color: var(--color-primary-blue);
}

.btn-outline:hover {
    background-color: var(--color-primary-blue);
    color: var(--color-text-light);
    transform: translateY(-2px);
}

.btn-outline-gold {
    background-color: transparent;
    border: 2px solid var(--color-accent-gold);
    color: var(--color-accent-gold-dark);
}

.btn-outline-gold:hover {
    background-color: var(--color-accent-gold);
    color: var(--color-text-light);
    transform: translateY(-2px);
}

.btn-white {
    background-color: var(--color-bg-light-card);
    color: var(--color-primary-blue);
}

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

.btn-small {
    padding: 8px 18px;
    font-size: 0.8rem;
}

/* --- Premium Light Navigation Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    transition: all var(--transition-smooth);
    border-bottom: 1px solid transparent;
    background-color: transparent;
}

.header.scrolled {
    background-color: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border);
    height: 75px;
    box-shadow: var(--shadow-sm);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* Premium Logo Styling (Matching User's Logo) */
.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Image Logo */
.logo-img {
    height: 55px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-fast);
}

.header.scrolled .logo-img {
    height: 48px;
}

/* Text Logo Fallback if Image is missing */
.logo-text-wrapper {
    display: flex;
    flex-direction: column;
}

.logo-main-text {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    line-height: 1.1;
    display: flex;
    gap: 4px;
}

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

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

.logo-sub-text {
    font-family: var(--font-body);
    font-size: 0.55rem;
    color: var(--color-primary-blue-hover);
    text-transform: uppercase;
    letter-spacing: 0.3em;
    font-weight: 700;
    margin-top: 2px;
}

/* Nav Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    position: relative;
    padding: 8px 0;
    color: var(--color-text-dark-muted);
}

.nav-link:hover, .nav-link.active {
    color: var(--color-primary-blue);
}

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

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

.header-cta {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Mobile Menu Toggle Button */
.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1010;
}

.mobile-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-dark);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

/* --- Hero Section (Light Architectural Theme) --- */
.hero {
    height: 100vh;
    min-height: 680px;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    background-color: #f8fafc;
}

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

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
    filter: brightness(0.95) contrast(1.02);
    transform: scale(1.03);
    animation: zoomHero 20s infinite alternate;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(255, 255, 255, 0.95) 35%, rgba(255, 255, 255, 0.7) 60%, rgba(255, 255, 255, 0.1) 100%);
    z-index: 2;
}

.hero .container {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-content {
    max-width: 650px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-primary-blue-light);
    border: 1px solid rgba(0, 74, 173, 0.15);
    color: var(--color-primary-blue);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.8rem;
    line-height: 1.15;
    margin-bottom: 24px;
    color: var(--color-text-dark);
}

.hero-title span {
    color: var(--color-primary-blue);
    display: block;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-dark-muted);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* --- About Us Section --- */
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.about-content-wrapper {
    display: flex;
    flex-direction: column;
}

.about-title {
    font-size: 2.5rem;
    margin-bottom: 24px;
    position: relative;
}

.about-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background-color: var(--color-accent-gold);
    margin-top: 12px;
}

.about-p {
    font-size: 1.025rem;
    color: var(--color-text-dark-muted);
    margin-bottom: 20px;
}

.about-highlight {
    font-size: 1.125rem;
    color: var(--color-primary-blue);
    font-weight: 600;
    border-left: 3px solid var(--color-accent-gold);
    padding-left: 20px;
    margin: 30px 0;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 30px;
}

.about-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.about-feature-icon {
    width: 24px;
    height: 24px;
    color: var(--color-accent-gold-dark);
    flex-shrink: 0;
    margin-top: 2px;
}

.about-feature-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--color-text-dark);
}

.about-feature-desc {
    font-size: 0.85rem;
    color: var(--color-text-dark-muted);
}

/* Image Showcase Layout */
.about-images {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-img-large {
    width: 85%;
    height: 420px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

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

.about-card-badge {
    position: absolute;
    bottom: 20px;
    left: 0;
    background: var(--color-bg-light-card);
    border: 1px solid var(--color-border);
    padding: 24px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    max-width: 210px;
    border-left: 4px solid var(--color-accent-gold);
}

.about-badge-num {
    font-size: 2.5rem;
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--color-primary-blue);
    line-height: 1;
}

.about-badge-txt {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-dark);
    margin-top: 4px;
}

/* --- Services Section --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--color-bg-light-card);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-smooth);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent-gold);
}

.service-image {
    height: 230px;
    overflow: hidden;
    position: relative;
}

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

.service-card:hover .service-image img {
    transform: scale(1.08);
}

.service-icon-floating {
    position: absolute;
    bottom: -20px;
    right: 24px;
    width: 50px;
    height: 50px;
    background-color: var(--color-primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    box-shadow: var(--shadow-md);
    z-index: 5;
    transition: transform var(--transition-fast);
}

.service-card:hover .service-icon-floating {
    transform: scale(1.1);
    background-color: var(--color-accent-gold);
}

.service-info {
    padding: 30px 24px 24px 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-card-title {
    font-size: 1.35rem;
    color: var(--color-text-dark);
    margin-bottom: 12px;
}

.service-card-desc {
    color: var(--color-text-dark-muted);
    font-size: 0.925rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

.service-card-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.service-tag {
    background-color: var(--color-bg-light-deep);
    color: var(--color-primary-blue-hover);
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: 600;
}

.service-card-link {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary-blue);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    align-self: flex-start;
}

.service-card-link svg {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-fast);
}

.service-card:hover .service-card-link {
    color: var(--color-accent-gold-dark);
}

.service-card:hover .service-card-link svg {
    transform: translateX(4px);
}

/* --- Factory / Manufacturing Advantage Section --- */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 50px;
}

.advantage-card {
    background-color: var(--color-bg-light-card);
    border: 1px solid var(--color-border);
    padding: 36px 24px;
    border-radius: 8px;
    text-align: center;
    transition: all var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}

.advantage-card:hover {
    border-color: var(--color-accent-gold);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.advantage-icon {
    width: 50px;
    height: 50px;
    color: var(--color-primary-blue);
    margin: 0 auto 20px auto;
}

.advantage-card:hover .advantage-icon {
    color: var(--color-accent-gold-dark);
}

.advantage-title {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: var(--color-text-dark);
}

.advantage-desc {
    font-size: 0.875rem;
    color: var(--color-text-dark-muted);
}

/* --- Project Gallery (Portfolio) --- */
.gallery-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-dark-muted);
    padding: 10px 24px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--color-primary-blue);
    color: var(--color-primary-blue);
}

.filter-btn.active {
    background-color: var(--color-primary-blue);
    border-color: var(--color-primary-blue);
    color: var(--color-text-light);
    box-shadow: var(--shadow-sm);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.gallery-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    height: 320px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all var(--transition-smooth);
}

.gallery-item.hidden {
    display: none;
}

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

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 34, 77, 0.95) 0%, rgba(0, 34, 77, 0.5) 60%, transparent 100%);
    opacity: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    transition: opacity var(--transition-smooth);
}

.gallery-item:hover img {
    transform: scale(1.06);
}

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

.gallery-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent-gold);
    font-weight: 700;
    margin-bottom: 6px;
}

.gallery-title {
    font-size: 1.25rem;
    color: var(--color-text-light);
    font-weight: 600;
    margin-bottom: 12px;
}

.gallery-action {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-text-light);
    letter-spacing: 0.05em;
}

.gallery-action svg {
    width: 14px;
    height: 14px;
    color: var(--color-accent-gold);
}

/* --- The Process Section --- */
.process-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
    position: relative;
}

/* Timeline connecting line */
.process-timeline::before {
    content: '';
    position: absolute;
    top: 35px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-border);
    z-index: 1;
}

.process-step {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 10px;
}

.process-number {
    width: 70px;
    height: 70px;
    background-color: var(--color-bg-light-card);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-blue);
    margin: 0 auto 24px auto;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-smooth);
}

.process-step:hover .process-number {
    border-color: var(--color-accent-gold);
    color: var(--color-accent-gold-dark);
    box-shadow: var(--shadow-gold);
    transform: scale(1.05);
}

.process-step-title {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: var(--color-text-dark);
}

.process-step-desc {
    font-size: 0.875rem;
    color: var(--color-text-dark-muted);
}

/* --- Contact & Quote Section --- */
.contact-wrapper {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
}

.contact-info-panel {
    display: flex;
    flex-direction: column;
}

.contact-intro {
    font-size: 1.05rem;
    color: var(--color-text-dark-muted);
    margin-bottom: 40px;
}

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

.contact-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-detail-icon {
    width: 46px;
    height: 46px;
    background-color: var(--color-bg-light-card);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-blue);
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.contact-detail-icon svg {
    width: 20px;
    height: 20px;
}

.contact-detail-label {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent-gold-dark);
    margin-bottom: 4px;
}

.contact-detail-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-dark);
}

.contact-detail-value a:hover {
    color: var(--color-primary-blue);
}

/* Social Icon Row */
.social-links {
    display: flex;
    gap: 12px;
}

.social-btn {
    width: 40px;
    height: 40px;
    background-color: var(--color-bg-light-card);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-dark-muted);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.social-btn:hover {
    border-color: var(--color-primary-blue);
    color: var(--color-primary-blue);
    transform: translateY(-2px);
}

.social-btn svg {
    width: 18px;
    height: 18px;
}

/* Contact Form Styling */
.contact-form-panel {
    background-color: var(--color-bg-light-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 45px;
    box-shadow: var(--shadow-md);
}

.contact-form-title {
    font-size: 1.75rem;
    margin-bottom: 8px;
    color: var(--color-text-dark);
}

.contact-form-desc {
    font-size: 0.9rem;
    color: var(--color-text-dark-muted);
    margin-bottom: 30px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group-full {
    grid-column: span 2;
}

.form-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-dark-muted);
    margin-bottom: 8px;
    transition: var(--transition-fast);
}

.form-input {
    background-color: var(--color-bg-light-sec);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 14px 16px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text-dark);
    outline: none;
    transition: all var(--transition-fast);
}

.form-input::placeholder {
    color: #94a3b8;
}

.form-input:focus {
    border-color: var(--color-primary-blue);
    background-color: var(--color-bg-light);
    box-shadow: 0 0 0 3px rgba(0, 74, 173, 0.1);
}

.form-group:focus-within .form-label {
    color: var(--color-primary-blue);
}

.form-input.invalid {
    border-color: #ef4444;
}

textarea.form-input {
    resize: none;
    height: 120px;
}

.form-submit-btn {
    width: 100%;
    margin-top: 10px;
}

/* Styled Premium Map Card Placeholder */
.map-container {
    margin-top: 50px;
    height: 320px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    position: relative;
}

.map-placeholder-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 24px;
    z-index: 5;
}

.map-placeholder-title {
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: var(--color-text-dark);
}

.map-placeholder-address {
    font-size: 0.9rem;
    color: var(--color-text-dark-muted);
    max-width: 450px;
    margin-bottom: 20px;
    line-height: 1.5;
}

/* --- Premium Navy Footer (Creating dynamic branding finish) --- */
.footer {
    background-color: #001736;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 80px 0 30px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-brand-desc {
    font-size: 0.9rem;
    color: var(--color-text-light-muted);
    margin: 20px 0 24px 0;
    line-height: 1.6;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-light);
    margin-bottom: 24px;
}

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

.footer-link {
    font-size: 0.9rem;
    color: var(--color-text-light-muted);
}

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

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: var(--color-text-light-muted);
}

.footer-contact-item svg {
    width: 16px;
    height: 16px;
    color: var(--color-accent-gold);
    flex-shrink: 0;
    margin-top: 3px;
}

.footer-contact-text {
    line-height: 1.5;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.85rem;
    color: var(--color-text-light-muted);
}

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

/* --- Interactive Lightbox Styling --- */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.95);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-smooth);
}

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

.lightbox-content {
    position: relative;
    max-width: 85%;
    max-height: 80%;
}

.lightbox-image {
    display: block;
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transform: scale(0.95);
    transition: transform var(--transition-smooth);
}

.lightbox.active .lightbox-image {
    transform: scale(1);
}

.lightbox-caption {
    color: var(--color-text-light);
    text-align: center;
    margin-top: 16px;
    font-family: var(--font-heading);
    font-size: 1.25rem;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: transparent;
    border: none;
    color: var(--color-text-light);
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
}

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

.lightbox-close svg {
    width: 24px;
    height: 24px;
}

/* --- Interactive Toast Notification --- */
.toast-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 3000;
}

.toast {
    background-color: var(--color-bg-light-card);
    border-left: 4px solid var(--color-success);
    border-radius: 4px;
    padding: 16px 24px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 16px;
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition-smooth);
    border: 1px solid var(--color-border);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-icon {
    color: var(--color-success);
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-icon svg {
    width: 24px;
    height: 24px;
}

.toast-title {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--color-text-dark);
    margin-bottom: 2px;
}

.toast-msg {
    font-size: 0.8rem;
    color: var(--color-text-dark-muted);
}

/* ========================================================================
   RESPONSIVE MEDIA QUERIES
   ======================================================================== */

@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-images {
        height: 400px;
    }
    
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-timeline {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .process-timeline::before {
        display: none;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 75px;
    }
    
    .section {
        padding: 70px 0;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .header-cta .btn {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    /* Navigation Drawer on Mobile */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background-color: var(--color-bg-light);
        border-left: 1px solid var(--color-border);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        z-index: 1005;
        transition: right var(--transition-smooth);
        padding: 40px;
    }
    
    .nav-menu.open {
        right: 0;
    }
    
    /* Overlay background when menu is open */
    .menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: rgba(15, 23, 42, 0.4);
        z-index: 1002;
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition-fast);
    }
    
    .menu-overlay.show {
        opacity: 1;
        pointer-events: auto;
    }
    
    /* Hamburger to X Transformation */
    .mobile-toggle.open span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .mobile-toggle.open span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.open span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-group-full {
        grid-column: span 1;
    }
    
    .contact-form-panel {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-ctas .btn {
        width: 100%;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .advantage-grid {
        grid-template-columns: 1fr;
    }
    
    .process-timeline {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* --- Page Header Banner (Sub-pages) --- */
.sub-header-banner {
    background: linear-gradient(135deg, var(--color-bg-light-deep) 0%, var(--color-bg-light-sec) 100%);
    padding: 140px 0 60px 0;
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}

.sub-header-title {
    font-size: 3rem;
    color: var(--color-text-dark);
    margin-bottom: 10px;
    font-weight: 800;
}

.sub-header-breadcrumbs {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary-blue);
}

.sub-header-breadcrumbs a {
    color: var(--color-text-dark-muted);
}

.sub-header-breadcrumbs a:hover {
    color: var(--color-primary-blue);
}

.sub-header-breadcrumbs span {
    color: var(--color-accent-gold-dark);
}

/* --- Specifications Table (Services Page) --- */
.table-container {
    overflow-x: auto;
    margin: 40px 0;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    background-color: var(--color-bg-light-card);
}

.spec-table th {
    background-color: var(--color-primary-blue);
    color: var(--color-text-light);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 16px 20px;
    border-bottom: 2px solid var(--color-accent-gold);
}

.spec-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
    color: var(--color-text-dark-muted);
}

.spec-table tr:last-child td {
    border-bottom: none;
}

.spec-table tr:nth-child(even) {
    background-color: var(--color-bg-light-sec);
}

.spec-table td strong {
    color: var(--color-text-dark);
}

.spec-tag-active {
    background-color: var(--color-accent-gold-light);
    color: var(--color-accent-gold-dark);
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.75rem;
}

/* --- FAQ Accordion (Contact Page) --- */
.faq-section {
    max-width: 800px;
    margin: 60px auto 0 auto;
}

.faq-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 40px;
}

.faq-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background-color: var(--color-bg-light-card);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-smooth);
}

.faq-item:hover {
    border-color: var(--color-accent-gold);
}

.faq-question {
    width: 100%;
    background: transparent;
    border: none;
    text-align: left;
    padding: 20px 24px;
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--color-primary-blue);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-question::after {
    content: '−';
    transform: rotate(180deg);
    color: var(--color-accent-gold-dark);
}

.faq-item.active {
    border-color: var(--color-primary-blue);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-smooth);
    background-color: var(--color-bg-light-sec);
}

.faq-answer-content {
    padding: 20px 24px;
    font-size: 0.95rem;
    color: var(--color-text-dark-muted);
    border-top: 1px solid var(--color-border);
    line-height: 1.6;
}

/* Page specific content tweaks */
.intro-text-lead {
    font-size: 1.2rem;
    color: var(--color-text-dark-muted);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px auto;
    line-height: 1.7;
}