:root {
    /* Light Theme — Navy & Amber Brand Colors on Light Backgrounds */
    --primary-color: #f3a63b;       /* Bright Industrial Gold / Amber Accent */
    --primary-hover: #d88e28;       /* Hover Gold */

    --bg-page: #FFFFFF;             /* Default section background */
    --bg-alt: #F5F7FA;              /* Alternating light section background */
    --bg-navy: #0c1523;             /* Footer, top bar, hero overlay, icon badges */
    --card-bg: #FFFFFF;             /* Card background */

    --border-color: rgba(12, 21, 35, 0.10);    /* Default light-theme hairline */
    --border-accent: rgba(243, 166, 59, 0.25); /* Gold accent border for badges/dark bands */
    --border-navy: #0c1523;                    /* Solid navy border for feature cards */

    --text-main: #16233B;           /* Headings / strong text on light bg */
    --text-body: #5B6472;           /* Paragraph copy on light bg */
    --text-on-dark: #FFFFFF;        /* Text on footer / top bar / hero overlay */
    --text-on-dark-muted: #B8C4D6;  /* Secondary text on footer / top bar */

    --shadow-sm: 0 4px 15px rgba(12, 21, 35, 0.06);
    --shadow-md: 0 15px 40px rgba(12, 21, 35, 0.10);
    --shadow-lg: 0 20px 50px rgba(12, 21, 35, 0.15);

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Montserrat', sans-serif;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-page);
    color: var(--text-main);
    line-height: 1.65;
    overflow-x: hidden;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 25px;
}

/* TOP INFO BAR */
.top-bar {
    background: var(--bg-navy);
    padding: 10px 0;
    font-size: 13px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-family: var(--font-body);
}
.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-left {
    display: flex;
    gap: 20px;
    color: var(--text-on-dark-muted);
}

.top-bar-left i {
    color: var(--primary-color);
    margin-right: 4px;
}

.top-bar-right {
    color: var(--primary-color);
    font-weight: 600;
    letter-spacing: 1px;
}

/* NAVIGATION HEADER */
.navbar {
    position: sticky;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(15px);
    z-index: 1000;
    padding: 18px 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.logo-section {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
}

.logo-text h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    color: var(--text-main);
    font-weight: 700;
    margin: 0;
    letter-spacing: 0.5px;
}

.logo-text p {
    font-size: 11px;
    color: var(--text-body);
    margin: 0;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: var(--text-main);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1.5px;
    transition: var(--transition);
}

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

.btn-quote {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 10px 22px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    transition: var(--transition);
}

.btn-quote:hover {
    background: var(--primary-color);
    color: var(--bg-navy);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1010;
}

.hamburger span {
    width: 26px;
    height: 2px;
    background: var(--text-main);
    transition: var(--transition);
    transform-origin: center;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.mobile-only-item {
    display: none;
}

/* HERO SLIDER */
.slider-hero {
    position: relative;
    height: 90vh;
    min-height: 600px;
    overflow: hidden;
}

.hero-slider {
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    visibility: hidden;
    display: flex;
    align-items: center;
    transition: opacity 1s ease-in-out, visibility 1s;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(12, 21, 35, 0.95) 45%, rgba(12, 21, 35, 0.5) 100%);
}

.hero-slide-content {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: flex-end;
    width: 100%;
}

.hero-badge {
    display: inline-block;
    color: var(--primary-color);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 15px;
    border-left: 3px solid var(--primary-color);
    padding-left: 10px;
}

.hero-text-left h1 {
    font-family: var(--font-heading);
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 25px;
    letter-spacing: -0.5px;
    color: var(--text-on-dark);
}

.highlight-gold {
    color: var(--primary-color);
}

.btn-primary {
    display: inline-block;
    background: var(--primary-color);
    color: var(--bg-navy);
    padding: 15px 35px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 1px;
    transition: var(--transition);
}

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

.hero-text-right-bottom {
    border-left: 1px solid rgba(255, 255, 255, 0.15);
    padding-left: 30px;
    margin-bottom: 10px;
}

.hero-text-right-bottom p {
    font-size: 15px;
    color: var(--text-on-dark-muted);
    line-height: 1.8;
}

/* SLIDER CONTROLS */
.slider-controls {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 25px;
    background: rgba(12, 21, 35, 0.85);
    padding: 12px 25px;
    border-radius: 4px;
    border: 1px solid var(--border-accent);
}

.slider-arrow {
    background: none;
    border: none;
    color: var(--text-on-dark-muted);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.slider-arrow:hover {
    color: var(--primary-color);
}

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

.indicator {
    width: 6px;
    height: 6px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.indicator.active {
    background: var(--primary-color);
    transform: scale(1.4);
}

/* CORPORATE OVERVIEW */
.corporate-overview {
    padding: 100px 0;
    background: var(--bg-page);
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.accent-title {
    color: var(--primary-color);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    display: block;
    margin-bottom: 15px;
}

.overview-left h2 {
    font-family: var(--font-heading);
    font-size: 40px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 25px;
}

.overview-left p {
    color: var(--text-body);
    font-size: 15px;
    margin-bottom: 35px;
}

.overview-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feat-inline {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.feat-inline i {
    color: var(--primary-color);
    font-size: 20px;
    margin-top: 3px;
}

.feat-inline strong {
    font-size: 16px;
    display: block;
    margin-bottom: 4px;
}

.feat-inline p {
    font-size: 14px;
    margin: 0;
}

.overview-right {
    position: relative;
}

.image-wrapper-stack {
    position: relative;
    padding-bottom: 30px;
}

.img-base {
    width: 100%;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.experience-badge-card {
    position: absolute;
    bottom: 0;
    left: -30px;
    background: var(--card-bg);
    border: 1px solid var(--border-accent);
    padding: 25px 35px;
    border-radius: 6px;
    box-shadow: var(--shadow-lg);
}

.experience-badge-card h3 {
    font-family: var(--font-heading);
    font-size: 42px;
    color: var(--primary-color);
    margin: 0;
    line-height: 1;
}

.experience-badge-card p {
    margin: 5px 0 0 0;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-main);
}

/* SERVICES GRID SECTION */
.services-preview {
    padding: 100px 0;
    background: var(--bg-alt);
    border-top: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    color: var(--primary-color);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    display: block;
    margin-bottom: 10px;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 38px;
    font-weight: 700;
    margin-bottom: 15px;
}

.section-header p {
    color: var(--text-body);
    font-size: 15px;
    max-width: 600px;
    margin: 0 auto;
}

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

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

.corp-card-image {
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.corp-card-content {
    padding: 30px;
    position: relative;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.corp-card-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-navy);
    border: 1px solid var(--border-accent);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 18px;
    position: absolute;
    top: -25px;
    left: calc(50% - 25px);
}

.corp-card h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    margin: 25px 0 15px 0;
}

.corp-card p {
    color: var(--text-body);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 25px;
    height: 70px;
    overflow: hidden;
}

.corp-card-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.corp-card-link:hover {
    gap: 12px;
}

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

/* CORPORATE FOOTER */
.footer {
    background: var(--bg-navy);
    padding: 80px 0 30px 0;
    border-top: 1px solid var(--border-accent);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-section h4 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.footer-section p {
    color: var(--text-on-dark-muted);
    font-size: 14px;
    line-height: 1.8;
}

.management-info {
    margin-top: 15px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-on-dark);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: var(--text-on-dark-muted);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 30px;
    text-align: center;
    color: var(--text-on-dark-muted);
    font-size: 13px;
}

/* WHATSAPP LAYOUT LINK */
.whatsapp-btn {
    position: fixed;
    bottom: 25px;
    left: 25px;
    width: 56px;
    height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 26px;
    text-decoration: none;
    box-shadow: 0 10px 25px rgba(0,0,0,0.4);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-btn:hover {
    transform: scale(1.08);
}

/* AI ASSISTANT */
.ai-assistant-wrapper {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 1001;
    font-family: var(--font-body);
}

.ai-trigger-bubble {
    background: var(--card-bg);
    border: 1px solid var(--primary-color);
    color: var(--text-main);
    padding: 12px 24px;
    border-radius: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
    position: relative;
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 1px solid var(--primary-color);
    border-radius: 50px;
    left: 0;
    top: 0;
    animation: bubblePulse 2s infinite;
}

@keyframes bubblePulse {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.15); opacity: 0; }
}

.ai-trigger-bubble i {
    color: var(--primary-color);
    font-size: 16px;
}

.ai-chat-window {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 360px;
    height: 480px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    overflow: hidden;
}

.ai-chat-window.open {
    display: flex;
}

.ai-chat-header {
    background: var(--bg-alt);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.ai-header-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ai-avatar-icon {
    width: 36px;
    height: 36px;
    background: var(--bg-navy);
    border: 1px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 14px;
}

.ai-header-profile h4 {
    font-family: var(--font-heading);
    font-size: 14px;
    margin: 0;
}

.ai-status-indicator {
    font-size: 11px;
    color: var(--text-body);
    display: flex;
    align-items: center;
    gap: 5px;
}

.ai-status-indicator .dot {
    width: 6px;
    height: 6px;
    background: #25D366;
    border-radius: 50%;
}

.ai-close-btn {
    background: none;
    border: none;
    color: var(--text-body);
    font-size: 22px;
    cursor: pointer;
}

.ai-chat-body {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.ai-message {
    max-width: 85%;
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 13px;
    line-height: 1.6;
}

.ai-received {
    background: var(--bg-alt);
    color: var(--text-main);
    align-self: flex-start;
}

.ai-sent {
    background: var(--primary-color);
    color: var(--bg-navy);
    font-weight: 500;
    align-self: flex-end;
}

.ai-chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 5px;
}

.ai-suggest-chip {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-body);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    transition: var(--transition);
}

.ai-suggest-chip:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.ai-chat-footer {
    padding: 15px;
    background: var(--bg-alt);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
}

.ai-chat-footer input {
    flex: 1;
    background: var(--bg-page);
    border: 1px solid var(--border-color);
    padding: 10px 15px;
    border-radius: 4px;
    color: var(--text-main);
    font-size: 13px;
    font-family: var(--font-body);
}

.ai-chat-footer input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.ai-chat-footer button {
    background: var(--primary-color);
    border: none;
    color: var(--bg-navy);
    width: 38px;
    height: 38px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.ai-chat-footer button:hover {
    background: var(--primary-hover);
}

/* RESPONSIVE DESIGN INTERFACES */
@media (max-width: 1024px) {
    .hero-slide-content { 
        grid-template-columns: 1fr; 
        gap: 25px; 
    }
    .hero-text-left h1 { 
        font-size: 42px; 
    }
    .hero-text-right-bottom { 
        border-left: none; 
        border-top: 1px solid rgba(255,255,255,0.1); 
        padding: 15px 0 0 0; 
        margin-bottom: 25px;
    }
    .overview-grid { 
        grid-template-columns: 1fr; 
        gap: 40px; 
    }
    .experience-badge-card { 
        left: 0; 
    }
    .corporate-services-grid { 
        grid-template-columns: repeat(2, 1fr); 
    }
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .navbar { 
        padding: 15px 0; 
    }
    .hamburger { 
        display: flex; 
    }
    .btn-quote { 
        display: none; 
    }
    
    .nav-menu { 
        position: absolute; 
        top: 100%; 
        left: 0; 
        right: 0; 
        background: var(--bg-page);
        max-height: 0;
        overflow: hidden;
        box-shadow: var(--shadow-md);
        transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        border-bottom: 0 solid transparent;
    }
    .nav-menu.active {
        max-height: 450px;
        border-bottom: 1px solid var(--border-color);
    }
    .nav-menu ul { 
        flex-direction: column; 
        gap: 0; 
        padding: 15px 25px; 
        align-items: flex-start;
    }
    .nav-menu ul li {
        width: 100%;
        padding: 12px 0;
        border-bottom: 1px solid var(--border-color);
    }
    .nav-menu ul li:last-child {
        border-bottom: none;
    }
    
    .mobile-only-item {
        display: block;
        width: 100%;
        margin-top: 8px;
    }
    .mobile-nav-btn {
        display: block;
        background: var(--primary-color) !important;
        color: var(--bg-navy) !important;
        font-weight: 700;
        text-align: center;
        padding: 12px 0;
        border-radius: 4px;
        letter-spacing: 1px;
    }
    
    .corporate-services-grid { 
        grid-template-columns: 1fr; 
    }
    .projects-header-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }
    .btn-view-projects {
        width: 100%;
        justify-content: center;
    }
    .footer-content {
        grid-template-columns: 1fr;
        gap: 35px;
        margin-bottom: 30px;
    }
    .ai-chat-window {
        width: calc(100vw - 50px);
        right: -10px;
    }

    .corporate-overview {
        padding: 60px 0;
    }
    .services-preview {
        padding: 60px 0;
    }
    .footer {
        padding: 50px 0 100px 0;
    }
    .main-footer {
        padding: 50px 0 100px 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .slider-hero {
        height: auto !important;
        min-height: 100vh !important;
    }
    .hero-slide {
        background-position: center center !important;
        align-items: center !important;
        padding: 80px 0 100px 0;
    }
    .hero-slide-content {
        display: flex !important;
        flex-direction: column !important;
        gap: 15px !important;
    }
    .hero-text-right-bottom {
        border-top: none !important;
        padding-top: 0 !important;
        margin-bottom: 10px !important;
    }
    .hero-text-right-bottom p {
        font-size: 13px !important;
        line-height: 1.6 !important;
    }

    .hero-text-left h1 {
        font-size: 32px;
    }
    .btn-primary {
        width: 100%;
        text-align: center;
    }
    .overview-left h2 {
        font-size: 28px;
    }
    .section-header h2 {
        font-size: 26px;
    }
    .experience-badge-card {
        position: relative;
        left: 0;
        margin-top: 15px;
        text-align: center;
    }

    .corporate-overview {
        padding: 45px 0;
    }
    .services-preview {
        padding: 45px 0;
    }
    .footer {
        padding: 40px 0 100px 0;
    }
    .main-footer {
        padding: 40px 0 100px 0;
    }
    .footer-content {
        margin-bottom: 25px;
    }
}