:root {
    /* Color Palette */
    --primary-dark: #0F2027;
    --primary: #203A43;
    --primary-light: #2C5364;
    --accent: #FF5F6D; /* Construction Orange/Red */
    --accent-hover: #e84c5a;
    --text-dark: #333333;
    --text-gray: #666666;
    --text-light: #f4f4f4;
    --bg-light: #F8F9FA;
    --bg-white: #FFFFFF;
    --border: #e0e0e0;
    --success: #2ecc71;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 500;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--bg-white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

.bg-light { background-color: var(--bg-light); }
.bg-dark { background-color: var(--primary-dark); }
.text-white { color: var(--text-light); }
.text-center { text-align: center; }

/* Typography Utilities */
.section-subtitle {
    display: inline-block;
    font-family: var(--font-heading);
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.section-subtitle.accent {
    color: #f39c12; /* Golden for premium feel */
}

.section-header {
    margin-bottom: 40px;
}

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

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-dark);
}

.bg-dark .section-header h2 {
    color: var(--text-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 5px;
    font-weight: 600;
    font-family: var(--font-heading);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 95, 109, 0.3);
}

.btn-primary-small {
    background: var(--accent);
    color: white;
    padding: 8px 20px;
    border-radius: 5px;
    font-weight: 500;
}

.btn-primary-small:hover {
    background: var(--accent-hover);
}

.btn-whatsapp {
    background: #25D366;
    color: white;
}

.btn-whatsapp:hover {
    background: #128C7E;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.3);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

.btn-text {
    color: var(--accent);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.btn-text:hover {
    gap: 10px;
    color: var(--primary);
}

.w-100 { width: 100%; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

nav.scrolled {
    padding: 5px 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-dark);
}

.nav-logo-img {
    height: 50px;
    width: auto;
    filter: invert(1);
    mix-blend-mode: multiply;
    transition: var(--transition);
}

.logo-text h1 {
    font-size: 1.5rem;
    margin: 0;
    line-height: 1;
    letter-spacing: 1px;
}

.logo-text span {
    font-size: 0.75rem;
    color: var(--text-gray);
    font-family: var(--font-body);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a:not(.btn-primary-small) {
    font-weight: 500;
    color: var(--primary);
    position: relative;
}

.nav-links a:not(.btn-primary-small)::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent);
    transition: var(--transition);
}

.nav-links a:not(.btn-primary-small):hover::after,
.nav-links a.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-dark);
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--primary-dark);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 30px;
    transition: 0.5s ease;
}

.mobile-menu-overlay.active {
    right: 0;
}

.mobile-menu-overlay a {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: white;
    font-weight: 600;
}

.close-menu {
    position: absolute;
    top: 30px;
    right: 30px;
    font-size: 2rem;
    color: white;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    color: white;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/hero_bg_final.png');
    background-size: cover;
    background-position: center;
    z-index: -2;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(15, 32, 39, 0.95) 0%, rgba(32, 58, 67, 0.6) 60%, rgba(44, 83, 100, 0.3) 100%);
    z-index: -1;
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 750px;
    padding: 50px;
    margin-top: 60px; /* offset for navbar */
    margin-left: 5%;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}



.hero-subtitle {
    font-size: 1.2rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 20px;
    animation: fadeInDown 1s ease 0.1s both;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-title span {
    color: var(--accent);
}

.hero-desc {
    font-size: 1.25rem;
    font-weight: 300;
    margin-bottom: 40px;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    justify-content: flex-start;
    gap: 20px;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-features {
    margin-top: 30px;
}

.about-features li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-weight: 500;
    font-size: 1.1rem;
}

.about-features i {
    color: var(--success);
    font-size: 1.5rem;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-card {
    background: var(--bg-light);
    padding: 30px 20px;
    border-radius: 10px;
    text-align: center;
    border-bottom: 4px solid var(--accent);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.stat-card h3 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-card p {
    font-weight: 600;
    color: var(--text-gray);
    font-family: var(--font-heading);
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.brand-card {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

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

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

.brand-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.cement-img {
    height: 140px;
    width: auto;
    object-fit: contain;
    margin: 0 auto 20px;
    display: block;
    transition: var(--transition);
    filter: drop-shadow(0 5px 10px rgba(0,0,0,0.1));
}

.brand-card:hover .cement-img {
    transform: scale(1.1) translateY(-5px);
    filter: drop-shadow(0 15px 20px rgba(0,0,0,0.15));
}

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

.brand-card p {
    color: var(--text-gray);
    margin-bottom: 25px;
    font-size: 0.95rem;
}

/* TMT Section */
.tmt-section {
    position: relative;
    background-color: var(--primary-dark);
}

.tmt-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/tmt-bg.png');
    background-size: cover;
    background-position: center;
    opacity: 0.5;
}

.tmt-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15,32,39,0.8) 0%, rgba(32,58,67,0.6) 100%);
}

.tmt-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.tmt-features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin: 40px 0;
}

.tmt-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.1);
    padding: 15px 25px;
    border-radius: 50px;
    color: white;
    font-weight: 600;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255,255,255,0.2);
}

.tmt-feature i {
    color: var(--accent);
}

.tmt-brands {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.tmt-badge {
    background: linear-gradient(to right, #434343 0%, black 100%);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    font-family: var(--font-heading);
    font-weight: 500;
    border: 1px solid #555;
    transition: var(--transition);
}

.tmt-badge:hover {
    transform: scale(1.05);
    border-color: var(--accent);
}

/* Paint Section */
.paint-section {
    position: relative;
    color: white;
}

.paint-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/paint-bg.png');
    background-size: cover;
    background-position: center;
}

.paint-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
}

.paint-content {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: flex-end;
}

.paint-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    padding: 50px;
    border-radius: 20px;
    max-width: 500px;
    border: 1px solid rgba(255,255,255,0.2);
}

.paint-card .section-header {
    margin-bottom: 20px;
}

.paint-card .section-header h2 {
    color: white;
}

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

.p-feat {
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 500;
}

.p-feat i {
    color: #3498db;
    font-size: 1.2rem;
}

/* Other Products */
.other-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.other-card {
    background: white;
    padding: 30px 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.other-card:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-5px);
}

.other-card i {
    font-size: 2.5rem;
    color: var(--text-gray);
    margin-bottom: 15px;
    transition: var(--transition);
}

.other-card:hover i {
    color: var(--accent);
}

/* Why Us */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.feature-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    transition: var(--transition);
}

.feature-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
}

.icon-wrapper {
    width: 70px;
    height: 70px;
    background: rgba(255, 95, 109, 0.1);
    color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 20px;
    transition: var(--transition);
}

.feature-box:hover .icon-wrapper {
    background: var(--accent);
    color: white;
}

.feature-box h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.feature-box p {
    color: var(--text-gray);
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.gallery-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    height: 250px;
    cursor: pointer;
}

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

.gallery-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    transition: var(--transition);
    opacity: 0;
}

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

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

/* Testimonials */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.testimonial-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.stars {
    color: #f1c40f;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.review {
    font-style: italic;
    color: var(--text-gray);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.client-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.client-avatar {
    width: 50px;
    height: 50px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
}

.client-name {
    font-weight: 600;
    font-family: var(--font-heading);
    color: var(--primary-dark);
}

/* Contact */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-details {
    margin-top: 40px;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.c-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--accent);
    flex-shrink: 0;
}

.c-text h4 {
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.c-text p, .c-text a {
    color: var(--text-gray);
}

.contact-form-container {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
}

.contact-form h3 {
    margin-bottom: 30px;
    font-size: 1.8rem;
    color: var(--primary-dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255, 95, 109, 0.1);
}

/* Footer */
.footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.7);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo-img {
    height: 70px;
    width: auto;
    mix-blend-mode: screen;
    margin-bottom: 10px;
}

.footer-desc {
    margin: 20px 0;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent);
    transform: translateY(-3px);
}

.footer-links h3, .footer-contact h3 {
    color: white;
    margin-bottom: 25px;
    font-size: 1.2rem;
}

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

.footer-links a:hover {
    color: var(--accent);
    padding-left: 5px;
}

.footer-contact p {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.footer-contact i {
    color: var(--accent);
    margin-top: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 25px 0;
    text-align: center;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: white;
}

/* Floating WhatsApp */
.floating-whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 5px 20px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.floating-whatsapp:hover {
    transform: scale(1.1);
    background-color: #128C7E;
}

/* Animations */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-title { font-size: 3rem; }
    .about-grid, .contact-wrapper { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    .hero-title { font-size: 2.5rem; }
    .hero-buttons { flex-direction: column; width: 100%; max-width: 300px; margin: 0 auto; }
    .section-header h2 { font-size: 2rem; }
    .paint-content { justify-content: center; }
    .paint-card { padding: 30px; }
}

@media (max-width: 576px) {
    .footer-grid { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: 1fr; }
}