/* 
   NANDIKESH CONSTRUCTIONS - Style System
   Design Paradigm: Premium, Modern, Engineering-Focused, Corporate
*/

/* ----------------------------------------------------
   1. VARIABLES & DESIGN TOKENS
------------------------------------------------------- */
:root {
    /* Color Palette */
    --primary-navy: #153B6F;
    --primary-navy-dark: #0E274D;
    --primary-navy-light: #205090;
    --construction-orange: #F39C12;
    --construction-orange-dark: #D6820A;
    --steel-grey: #555555;
    --light-grey: #F7F8FA;
    --border-grey: #E5E7EB;
    --white: #FFFFFF;
    --dark-bg: #0E1B2E;
    
    /* Typography */
    --font-headings: 'Montserrat', sans-serif;
    --font-body: 'Poppins', sans-serif;
    
    /* Layout */
    --container-width: 1200px;
    --section-padding: 100px 0;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Shadows */
    --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.03);
    --shadow-medium: 0 8px 30px rgba(21, 59, 111, 0.06);
    --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.08);
}

/* ----------------------------------------------------
   2. RESET & BASE STYLES
------------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Offset for sticky header */
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    color: var(--steel-grey);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    color: var(--primary-navy);
    font-weight: 700;
    line-height: 1.25;
}

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

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

ul {
    list-style: none;
}

/* ----------------------------------------------------
   3. REUSABLE UTILITIES & COMPONENTS
------------------------------------------------------- */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    position: relative;
}

.section-padding {
    padding: var(--section-padding);
}

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

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

.text-white {
    color: var(--white);
}

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

.accent-line {
    width: 60px;
    height: 4px;
    background-color: var(--construction-orange);
    margin: 20px auto 0;
}

.accent-line.orange-bg {
    background-color: var(--construction-orange);
}

/* Section Header styling */
.section-header {
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-top: 10px;
    text-transform: uppercase;
}

.section-header h2.white-text {
    color: var(--white);
}

.section-header .subtitle {
    font-family: var(--font-headings);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--construction-orange);
    text-transform: uppercase;
}

.section-header .subtitle.orange-text {
    color: var(--construction-orange);
}

/* Button UI Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-headings);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 16px 32px;
    border-radius: 0px; /* Minimalist/Industrial square borders */
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-navy);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--construction-orange);
    color: var(--white);
}

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

.btn-outline:hover {
    background-color: var(--primary-navy);
    color: var(--white);
}

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

.btn-outline.btn-white:hover {
    background-color: var(--white);
    color: var(--primary-navy);
}

.btn-large {
    padding: 20px 40px;
    font-size: 0.95rem;
}

.btn-full {
    width: 100%;
}

.btn-whatsapp {
    background-color: #25D366;
    color: var(--white);
    border: none;
}

.btn-whatsapp:hover {
    background-color: #20ba5a;
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.3);
}

/* ----------------------------------------------------
   4. HEADER & STICKY NAVIGATION
------------------------------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
    padding: 25px 0;
}

.site-header.scrolled {
    background-color: var(--white);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid var(--border-grey);
    padding: 15px 0;
}

.header-container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: block;
    height: 70px;
    width: 92px;
    transition: var(--transition-smooth);
}

.site-header.scrolled .logo-link {
    height: 55px;
    width: 72px;
}

.logo-img {
    height: 100%;
    width: 100%;
    object-fit: contain;
}

.primary-navigation {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-menu {
    display: flex;
    gap: 35px;
}

.nav-link {
    font-family: var(--font-headings);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--white);
    padding: 8px 0;
    position: relative;
}

/* Transparent initially text color, dark text on scroll */
.site-header.scrolled .nav-link {
    color: var(--primary-navy);
}

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

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

.nav-link:hover {
    color: var(--construction-orange) !important;
}

.btn-call {
    padding: 10px 20px;
    font-size: 0.75rem;
    border-color: var(--white);
    color: var(--white);
}

.site-header.scrolled .btn-call {
    border-color: var(--primary-navy);
    color: var(--primary-navy);
}

.site-header.scrolled .btn-call:hover {
    background-color: var(--primary-navy);
    color: var(--white);
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.hamburger-bar {
    display: block;
    width: 25px;
    height: 2px;
    margin: 6px auto;
    background-color: var(--white);
    transition: var(--transition-smooth);
}

.site-header.scrolled .hamburger-bar {
    background-color: var(--primary-navy);
}

/* ----------------------------------------------------
   5. HERO SECTION
------------------------------------------------------- */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    color: var(--white);
    overflow: hidden;
}

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

.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: brightness(0.95);
    transform: scale(1.03);
    animation: zoomBackground 20s infinite alternate ease-in-out;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(21, 59, 111, 0.85) 0%, rgba(14, 27, 46, 0.95) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 800px;
    padding-top: 80px;
}

.hero-subtitle {
    font-family: var(--font-headings);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--construction-orange);
    margin-bottom: 20px;
    display: block;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 25px;
    letter-spacing: -1.5px;
}

.hero-title .highlight-text {
    color: var(--white);
    position: relative;
}

.hero-description {
    font-size: 1.15rem;
    font-weight: 300;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
    max-width: 650px;
}

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

/* Scroll indicator animation */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-smooth);
}

.scroll-indicator:hover {
    color: var(--construction-orange);
}

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid currentColor;
    border-radius: 12px;
    position: relative;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background-color: currentColor;
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollMouseWheel 1.6s infinite ease-in-out;
}

.scroll-label {
    font-family: var(--font-headings);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

@keyframes scrollMouseWheel {
    0% { opacity: 0; transform: translate(-50%, 0); }
    15% { opacity: 1; }
    50% { opacity: 1; transform: translate(-50%, 10px); }
    100% { opacity: 0; transform: translate(-50%, 10px); }
}

@keyframes zoomBackground {
    0% { transform: scale(1.02); }
    100% { transform: scale(1.08); }
}

/* ----------------------------------------------------
   6. ABOUT SECTION
------------------------------------------------------- */
.about-intro-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    margin-bottom: 80px;
    align-items: center;
}

.about-text-column .lead-text {
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--primary-navy);
    line-height: 1.6;
    margin-bottom: 25px;
}

.about-text-column p {
    margin-bottom: 20px;
}

.mini-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin-top: 30px;
}

.mini-feature-item {
    display: flex;
    align-items: center;
    font-size: 0.95rem;
    gap: 12px;
}

.feature-bullet {
    width: 8px;
    height: 8px;
    background-color: var(--construction-orange);
    flex-shrink: 0;
}

.about-stats-column {
    display: flex;
    justify-content: flex-end;
}

.stats-card {
    background-color: var(--white);
    border-left: 6px solid var(--primary-navy);
    padding: 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    box-shadow: var(--shadow-medium);
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-family: var(--font-headings);
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-navy);
    line-height: 1;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
}

.stat-number::after {
    content: '+';
    color: var(--construction-orange);
    font-size: 2.25rem;
    margin-left: 2px;
}

.stat-item:nth-child(3) .stat-number::after {
    content: '%';
}

.stat-label {
    font-family: var(--font-headings);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--steel-grey);
}

/* Strategic Pillars Section */
.strategic-pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.pillar-card {
    background-color: var(--white);
    padding: 45px 35px;
    border: 1px solid var(--border-grey);
    transition: var(--transition-smooth);
}

.pillar-icon-wrapper {
    color: var(--primary-navy);
    margin-bottom: 25px;
    display: inline-block;
}

.pillar-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.pillar-card p {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--steel-grey);
}

/* Highlighted pillar card */
.pillar-card.highlighted {
    background-color: var(--primary-navy);
    border-color: var(--primary-navy);
    color: var(--white);
}

.pillar-card.highlighted h3 {
    color: var(--white);
}

.pillar-card.highlighted p {
    color: rgba(255, 255, 255, 0.85);
}

.pillar-card.highlighted .pillar-icon-wrapper {
    color: var(--construction-orange);
}

.pillar-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-navy);
}

.pillar-card.highlighted:hover {
    border-color: var(--construction-orange);
}

/* ----------------------------------------------------
   7. WHY CHOOSE US
------------------------------------------------------- */
.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.why-card {
    background-color: var(--white);
    border: 1px solid var(--border-grey);
    padding: 35px 30px;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.why-icon {
    margin-bottom: 25px;
    transition: var(--transition-smooth);
}

.why-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 15px;
    letter-spacing: -0.2px;
}

.why-card p {
    font-size: 0.85rem;
    line-height: 1.65;
    color: var(--steel-grey);
}

/* Hover Animation: Lift and border transition */
.why-card:hover {
    transform: translateY(-6px);
    border-color: var(--construction-orange);
    box-shadow: var(--shadow-medium);
}

.why-card:hover .why-icon {
    transform: scale(1.1);
}

/* ----------------------------------------------------
   8. SERVICES
------------------------------------------------------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.service-card {
    background-color: var(--white);
    padding: 40px 30px;
    border: 1px solid var(--border-grey);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.service-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 0px;
    background-color: var(--light-grey);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    transition: var(--transition-smooth);
    color: var(--primary-navy);
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--primary-navy);
}

.service-card p {
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--steel-grey);
}

/* Hover effects */
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-premium);
    border-color: var(--primary-navy);
}

.service-card:hover .service-icon-wrapper {
    background-color: var(--primary-navy);
    color: var(--white);
}

/* ----------------------------------------------------
   9. FEATURED PROJECTS
------------------------------------------------------- */
.project-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 45px;
}

.filter-btn {
    font-family: var(--font-headings);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--border-grey);
    color: var(--steel-grey);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary-navy);
    border-color: var(--primary-navy);
    color: var(--white);
}

/* Grid logic for gallery filtering */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.project-card-wrapper {
    transition: var(--transition-smooth);
    transform-origin: center;
}

/* Hiding class with smooth scale out */
.project-card-wrapper.hide {
    display: none;
    transform: scale(0.8);
    opacity: 0;
}

.project-card {
    background-color: var(--white);
    border: 1px solid var(--border-grey);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-img-container {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background-color: var(--light-grey);
}

.project-img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--construction-orange);
    color: var(--white);
    font-family: var(--font-headings);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 6px 12px;
    z-index: 2;
}

.project-details {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.project-details h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary-navy);
}

.project-meta-list {
    border-top: 1px solid var(--border-grey);
    padding-top: 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 0.85rem;
}

.meta-item span {
    font-weight: 600;
    color: var(--primary-navy);
}

/* Hover effects */
.project-card:hover .project-img-container img {
    transform: scale(1.08);
}

.project-card:hover {
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-navy);
}

/* ----------------------------------------------------
   10. QUALITY & SAFETY SECTIONS
------------------------------------------------------- */
.quality-safety-wrapper {
    display: flex;
    flex-direction: column;
}

/* Quality Split Layout */
.quality-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.quality-img-column {
    position: relative;
    border-left: 8px solid var(--primary-navy);
}

.quality-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.quality-text-column p {
    margin-bottom: 20px;
}

.quality-text-column .lead-text {
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--primary-navy);
}

.quality-certifications {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary-navy);
}

.cert-check {
    color: var(--construction-orange);
    font-size: 1.2rem;
    font-weight: 800;
}

/* Safety Section (Dark Mode) */
.safety-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.safety-card {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 40px 30px;
    transition: var(--transition-smooth);
}

.safety-icon-box {
    margin-bottom: 25px;
}

.safety-card h3 {
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.safety-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    line-height: 1.65;
}

.safety-card:hover {
    border-color: var(--construction-orange);
    background-color: rgba(255, 255, 255, 0.06);
    transform: translateY(-6px);
}

/* ----------------------------------------------------
   11. CALL TO ACTION (CTA)
------------------------------------------------------- */
.cta-section {
    position: relative;
    padding: 120px 0;
    text-align: center;
    color: var(--white);
    overflow: hidden;
}

.cta-bg-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.cta-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(14, 27, 46, 0.95), rgba(21, 59, 111, 0.85));
    z-index: 2;
}

.cta-content {
    position: relative;
    z-index: 3;
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--white);
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.cta-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
    line-height: 1.7;
}

/* ----------------------------------------------------
   12. CONTACT SECTION
------------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 60px;
}

.contact-details-column h3,
.contact-form-column h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: -0.3px;
}

.contact-lead {
    margin-bottom: 35px;
    font-size: 0.95rem;
}

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

.contact-info-item {
    display: flex;
    gap: 20px;
}

.info-icon {
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-grey);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-text {
    font-size: 0.9rem;
    line-height: 1.6;
}

.info-text strong {
    font-family: var(--font-headings);
    color: var(--primary-navy);
    font-size: 0.8rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.contact-link:hover {
    color: var(--construction-orange);
}

.whatsapp-btn-wrapper {
    margin-bottom: 30px;
}

.map-container {
    border: 1px solid var(--border-grey);
    background-color: var(--light-grey);
    padding: 8px;
}

/* Form Styles */
.rfp-form {
    background-color: var(--light-grey);
    padding: 50px 40px;
    border: 1px solid var(--border-grey);
}

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

.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-group label {
    display: block;
    font-family: var(--font-headings);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    color: var(--primary-navy);
}

.required-star {
    color: var(--construction-orange);
}

.form-group input,
.form-group textarea {
    width: 100%;
    font-family: var(--font-body);
    font-size: 0.9rem;
    padding: 16px 20px;
    border: 1px solid var(--border-grey);
    background-color: var(--white);
    color: var(--steel-grey);
    outline: none;
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-navy);
    box-shadow: 0 4px 15px rgba(21, 59, 111, 0.05);
}

.error-msg {
    display: none;
    font-size: 0.75rem;
    color: #E74C3C;
    margin-top: 5px;
    font-weight: 500;
}

/* Form Success Container */
.form-success-container {
    display: none;
    align-items: center;
    gap: 15px;
    background-color: #E8F8F5;
    border: 1px solid #A2D9CE;
    padding: 20px;
    margin-top: 25px;
    font-size: 0.85rem;
    color: #117864;
    line-height: 1.5;
}

/* ----------------------------------------------------
   13. FOOTER
------------------------------------------------------- */
.site-footer {
    background-color: var(--dark-bg);
    color: rgba(255, 255, 255, 0.7);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
    gap: 50px;
}

.footer-logo {
    height: 80px;
    width: 105px;
    margin-bottom: 25px;
    filter: brightness(0) invert(1); /* Invert logo to match dark background */
}

.footer-tagline {
    font-size: 0.85rem;
    line-height: 1.7;
    margin-bottom: 30px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 38px;
    height: 38px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.social-links a:hover {
    background-color: var(--construction-orange);
    border-color: var(--construction-orange);
}

.footer-grid h3 {
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 30px;
    position: relative;
}

.footer-grid h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--construction-orange);
}

.footer-col-links ul {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-col-links ul a {
    font-size: 0.85rem;
    transition: var(--transition-smooth);
}

.footer-col-links ul a:hover {
    color: var(--construction-orange);
    padding-left: 5px;
}

.footer-col-contact p {
    font-size: 0.85rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.footer-col-contact p strong {
    color: var(--white);
    font-family: var(--font-headings);
    font-size: 0.75rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.footer-bottom {
    padding: 30px 0;
    background-color: #0A1321;
    font-size: 0.8rem;
}

.footer-bottom-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom-links {
    display: flex;
    gap: 25px;
}

.footer-bottom-links a:hover {
    color: var(--construction-orange);
}

/* ----------------------------------------------------
   14. INTERACTIVE & TRANSITION ANIMATIONS (scroll reveal)
------------------------------------------------------- */
/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    background-color: var(--primary-navy);
    color: var(--white);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--construction-orange);
    transform: translateY(-3px);
}

/* Scroll reveal utility classes setup */
.reveal-up {
    transform: translateY(40px);
    opacity: 0;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s ease;
}

.reveal-left {
    transform: translateX(-40px);
    opacity: 0;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s ease;
}

.reveal-right {
    transform: translateX(40px);
    opacity: 0;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s ease;
}

/* Active states toggled via JS */
.revealed {
    transform: translate(0) !important;
    opacity: 1 !important;
}