/* ==========================================================================
   NEXUS SMART CITY - HIGH TECH LIGHT THEME STYLE SHEET
   Palette: Bright White, Cool Cyan (#00A8CC / #00B4D8), Deep Slate (#0F172A), Soft Grey (#F8FAFC)
   NO PURPLE, NO PINK. Clean, Futuristic, Detailed.
   ========================================================================== */

:root {
    --primary-cyan: #00A8CC;
    --secondary-cyan: #00B4D8;
    --dark-navy: #0F172A;
    --slate-text: #334155;
    --light-grey-bg: #F8FAFC;
    --card-border: #E2E8F0;
    --white: #FFFFFF;
    --accent-blue: #0284C7;
    --green-accent: #10B981;
    --shadow-soft: 0 10px 25px -5px rgba(0, 168, 204, 0.1);
    --shadow-card: 0 12px 32px rgba(15, 23, 42, 0.06);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: var(--light-grey-bg);
    color: var(--slate-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography Helpers */
h1, h2, h3, h4 {
    color: var(--dark-navy);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.highlight-cyan {
    background: linear-gradient(120deg, #00A8CC 0%, #0284C7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.section {
    padding: 90px 0;
    position: relative;
}

.section-header {
    max-width: 700px;
    margin: 0 auto 50px auto;
}

.section-header h2 {
    font-size: 2.3rem;
    margin: 10px 0 15px 0;
}

.sub-title {
    color: var(--primary-cyan);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    background: rgba(0, 168, 204, 0.08);
    padding: 6px 16px;
    border-radius: 30px;
    display: inline-block;
}

.badge-cyan {
    background: #E0F2FE;
    color: var(--primary-cyan);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
}

/* Top Bar */
.top-bar {
    background: var(--dark-navy);
    color: #94A3B8;
    font-size: 0.85rem;
    padding: 8px 0;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pulse-badge {
    color: var(--green-accent);
    font-weight: 600;

}

.pulse-badge i {
    font-size: 0.6rem;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.3; }
    100% { opacity: 1; }
}

.top-bar p b { color: var(--white); }
.top-contact a { color: var(--white); text-decoration: none; font-weight: 600; }

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--card-border);
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 76px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary-cyan), var(--secondary-cyan));
    color: var(--white);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 12px rgba(0, 168, 204, 0.3);
}

.logo-text {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--dark-navy);
}

.logo-text span {
    color: var(--primary-cyan);
    font-weight: 600;
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 28px;
}

.nav-link {
    text-decoration: none;
    color: var(--slate-text);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.btn-tech {
    background: linear-gradient(135deg, var(--primary-cyan), var(--accent-blue));
    color: var(--white);
    padding: 10px 22px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 6px 18px rgba(0, 168, 204, 0.25);
    transition: var(--transition);
}

.btn-tech:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(0, 168, 204, 0.35);
}

/* Hero Section */
.hero-section {
    padding: 80px 0 100px 0;
    background: #FFFFFF;
    position: relative;
    overflow: hidden;
}

.hero-bg-grid {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: radial-gradient(#E2E8F0 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: 0.5;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.tech-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #E0F2FE;
    color: #0369A1;
    font-weight: 700;
    font-size: 0.85rem;
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.hero-text-col h1 {
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 1.1rem;
    color: #64748B;
    margin-bottom: 35px;
    max-width: 580px;
}

.hero-stats {
    display: flex;
    gap: 35px;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--card-border);
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--dark-navy);
}

.stat-box sub {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-cyan);
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: #64748B;
    font-weight: 600;
}

.hero-btn-group {
    display: flex;
    gap: 15px;
}

.btn-primary-tech {
    background: var(--primary-cyan);
    color: var(--white);
    padding: 14px 30px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(0, 168, 204, 0.3);
    transition: var(--transition);
}

.btn-primary-tech:hover {
    background: #0092B3;
    transform: translateY(-2px);
}

.btn-outline-tech {
    background: var(--white);
    color: var(--dark-navy);
    border: 2px solid var(--card-border);
    padding: 14px 26px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.btn-outline-tech:hover {
    border-color: var(--primary-cyan);
    color: var(--primary-cyan);
}

/* Hero Visual & Floating Widgets */
.main-visual-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: visible;
}

.main-visual-card img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
}

.floating-widget {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 14px 20px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.widget-1 { top: 30px; left: -30px; }
.widget-2 { bottom: 30px; right: -20px; }

.floating-widget i {
    font-size: 1.5rem;
    width: 44px; height: 44px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
}

.icon-blue { background: #E0F2FE; color: var(--primary-cyan); }
.icon-green { background: #D1FAE5; color: var(--green-accent); }

.floating-widget h4 { font-size: 0.9rem; margin-bottom: 2px; }
.floating-widget p { font-size: 0.75rem; color: #64748B; margin: 0; }

/* Tech Bar Section */
.tech-bar-section {
    background: var(--white);
    padding: 35px 0;
    border-top: 1px solid var(--card-border);
    border-bottom: 1px solid var(--card-border);
}

.tech-bar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
}

.tech-bar-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.tech-bar-item i {
    font-size: 1.6rem;
    color: var(--primary-cyan);
    width: 50px; height: 50px;
    background: #F0F9FF;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
}

.tech-bar-item h3 { font-size: 0.95rem; }
.tech-bar-item p { font-size: 0.8rem; color: #64748B; margin: 0; }

/* Ecosystem Section & Interactive Tabs */
.eco-section { background: var(--light-grey-bg); }

.eco-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.eco-tab-btn {
    background: var(--white);
    border: 1px solid var(--card-border);
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 700;
    color: var(--slate-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.eco-tab-btn:hover, .eco-tab-btn.active {
    background: var(--primary-cyan);
    color: var(--white);
    border-color: var(--primary-cyan);
    box-shadow: 0 6px 16px rgba(0, 168, 204, 0.25);
}

.eco-tab-content { display: none; }
.eco-tab-content.active { display: block; animation: fadeIn 0.4s ease-in-out; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.eco-card-grid {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 45px;
    box-shadow: var(--shadow-card);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.eco-info h3 {
    font-size: 1.8rem;
    margin: 15px 0 20px 0;
    line-height: 1.3;
}

.check-list {
    list-style: none;
}

.check-list li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
}

.check-list li i {
    color: var(--primary-cyan);
}

.eco-image img {
    width: 100%;
    height: 320px;
    object-fit: cover;
    border-radius: var(--radius-md);
}

/* Floorplan Section */
.floor-filters {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 35px;
}

.filter-btn {
    background: var(--white);
    border: 1px solid var(--card-border);
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    color: var(--slate-text);
    cursor: pointer;
    transition: var(--transition);
}

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

.floor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.floor-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--card-border);
    position: relative;
    transition: var(--transition);
}

.floor-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 35px rgba(0, 0, 0, 0.08);
}

.floor-badge {
    position: absolute;
    top: 15px; left: 15px;
    background: rgba(15, 23, 42, 0.85);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    z-index: 2;
}

.floor-img {
    height: 220px;
    overflow: hidden;
}

.floor-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.floor-card:hover .floor-img img {
    transform: scale(1.06);
}

.floor-details {
    padding: 24px;
}

.floor-details h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.specs-row {
    display: flex;
    gap: 15px;
    font-size: 0.85rem;
    color: #64748B;
    margin-bottom: 15px;
}

.floor-price {
    font-size: 0.95rem;
    color: var(--slate-text);
    margin-bottom: 15px;
}

.floor-price strong {
    font-size: 1.3rem;
    color: var(--primary-cyan);
}

.btn-card {
    display: block;
    text-align: center;
    background: #F1F5F9;
    color: var(--dark-navy);
    padding: 10px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.85rem;
    transition: var(--transition);
}

.btn-card:hover {
    background: var(--primary-cyan);
    color: var(--white);
}

/* Mortgage Calculator Section */
.calc-section {
    background: var(--white);
}

.calc-box {
    background: #F8FAFC;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 50px;
}

.calc-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 30px;
}

.input-group {
    margin-bottom: 24px;
}

.input-group label {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.input-group label b {
    color: var(--primary-cyan);
}

.input-group input[type="range"] {
    width: 100%;
    accent-color: var(--primary-cyan);
}

.calc-result-card {
    background: var(--white);
    padding: 35px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--card-border);
}

.calc-result-card h3 {
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--card-border);
}

.result-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.result-divider {
    height: 1px;
    background: var(--card-border);
    margin: 20px 0;
}

.result-highlight span {
    font-size: 0.85rem;
    color: #64748B;
}

.result-highlight h2 {
    color: var(--primary-cyan);
    font-size: 2.2rem;
    margin: 5px 0 15px 0;
}

.calc-note {
    font-size: 0.75rem;
    color: #94A3B8;
    margin-bottom: 20px;
}

.width-100 {
    width: 100%;
    justify-content: center;
}

/* Gallery Section */
.tech-gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-card {
    position: relative;
    height: 250px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.gallery-card.g-large {
    grid-column: span 2;
}

.gallery-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.g-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15,23,42,0.85) 0%, transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    color: var(--white);
}

.g-tag {
    background: var(--primary-cyan);
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    width: max-content;
    margin-bottom: 6px;
}

.g-overlay h3 {
    color: var(--white);
    font-size: 1.1rem;
}

/* Registration Section */
.register-section {
    background: linear-gradient(135deg, var(--dark-navy) 0%, #1E293B 100%);
    color: var(--white);
}

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

.register-info h2 {
    color: var(--white);
    font-size: 2.3rem;
    margin: 15px 0 20px 0;
}

.register-info p {
    color: #94A3B8;
    margin-bottom: 30px;
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.benefit-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.benefit-item i {
    font-size: 1.4rem;
    color: var(--primary-cyan);
    background: rgba(0, 168, 204, 0.15);
    padding: 12px;
    border-radius: 10px;
}

.benefit-item h4 { color: var(--white); font-size: 1rem; margin-bottom: 4px; }
.benefit-item p { color: #94A3B8; font-size: 0.85rem; margin: 0; }

.register-form-box {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    color: var(--slate-text);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
}

.register-form-box h3 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.form-sub {
    font-size: 0.85rem;
    color: #64748B;
    margin-bottom: 25px;
}

.tech-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-field label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--dark-navy);
}

.form-field input, .form-field select {
    padding: 12px 16px;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

.form-field input:focus, .form-field select:focus {
    border-color: var(--primary-cyan);
    box-shadow: 0 0 0 3px rgba(0, 168, 204, 0.15);
}

.btn-submit-tech {
    background: linear-gradient(135deg, var(--primary-cyan), #0284C7);
    color: var(--white);
    padding: 16px;
    border: none;
    border-radius: 10px;
    font-weight: 800;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    box-shadow: 0 10px 20px rgba(0, 168, 204, 0.3);
    transition: var(--transition);
    margin-top: 10px;
}

.btn-submit-tech:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 26px rgba(0, 168, 204, 0.4);
}

/* Footer */
.tech-footer {
    background: #0B1120;
    color: #94A3B8;
    padding-top: 70px;
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 50px;
    border-bottom: 1px solid #1E293B;
}

.brand-col .logo-text { color: var(--white); }
.brand-col p { margin: 15px 0 20px 0; font-size: 0.85rem; }

.tech-status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    background: #1E293B;
    padding: 6px 12px;
    border-radius: 20px;
    color: var(--green-accent);
}

.status-dot {
    width: 8px; height: 8px;
    background: var(--green-accent);
    border-radius: 50%;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1rem;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: #94A3B8; text-decoration: none; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary-cyan); }

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 0.8rem;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero-container, .eco-card-grid, .calc-content-grid, .register-grid, .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero-text-col h1 { font-size: 2.4rem; }
    .gallery-card.g-large { grid-column: span 1; }
    .nav-menu { display: none; }
}