/* ===================================
   TNT Homes & Construction
   Modern Corporate Construction Site
   =================================== */

/* --- CSS Custom Properties --- */
:root {
    --color-midnight: #0a1628;
    --color-midnight-light: #1e3a5f;
    --color-mint: #34d399;
    --color-mint-dark: #059669;
    --color-mint-light: #d1fae5;
    --color-white: #ffffff;
    --color-off-white: #f8fafc;
    --color-gray-50: #f1f5f9;
    --color-gray-100: #e2e8f0;
    --color-gray-200: #cbd5e1;
    --color-gray-300: #94a3b8;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-accent: #0ea5e9;

    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Inter', sans-serif;

    --shadow-sm: 0 1px 2px rgba(10, 22, 40, 0.06);
    --shadow-md: 0 4px 16px rgba(10, 22, 40, 0.08);
    --shadow-lg: 0 12px 40px rgba(10, 22, 40, 0.12);
    --shadow-xl: 0 24px 60px rgba(10, 22, 40, 0.16);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-white);
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* --- Utility --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-mint);
    color: var(--color-midnight);
    border: 2px solid var(--color-mint);
}

.btn-primary:hover {
    background: var(--color-mint-dark);
    border-color: var(--color-mint-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(52, 211, 153, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-midnight);
    border-color: var(--color-white);
    transform: translateY(-2px);
}

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

.btn-outline-light:hover {
    background: var(--color-midnight);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-mint {
    background: var(--color-mint);
    color: var(--color-midnight);
    border: 2px solid var(--color-mint);
}

.btn-mint:hover {
    background: var(--color-mint-dark);
    border-color: var(--color-mint-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(52, 211, 153, 0.3);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 16px;
}

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

/* --- Section Styles --- */
.section-tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-mint-dark);
    background: var(--color-mint-light);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-midnight);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.01em;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-text-light);
    max-width: 600px;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header .section-subtitle {
    margin: 0 auto;
}

/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: all var(--transition);
}

.header.scrolled {
    background: rgba(10, 22, 40, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 700;
    color: var(--color-mint);
    background: var(--color-mint);
    color: var(--color-midnight);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-white);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    line-height: 1.2;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav a:not(.btn) {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.75);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: color var(--transition);
}

.nav a:not(.btn):hover {
    color: var(--color-mint);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10, 22, 40, 0.92) 0%,
        rgba(10, 22, 40, 0.80) 50%,
        rgba(10, 22, 40, 0.60) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 120px 24px 80px;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-mint);
    background: rgba(52, 211, 153, 0.12);
    border: 1px solid rgba(52, 211, 153, 0.3);
    padding: 8px 18px;
    border-radius: 100px;
    margin-bottom: 28px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 700;
    line-height: 1.05;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.01em;
    margin-bottom: 24px;
}

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

.hero-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
    max-width: 560px;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 64px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    color: var(--color-mint);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.hero-scroll a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-family: var(--font-heading);
}

.hero-scroll svg {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(6px); }
    60% { transform: translateY(3px); }
}

/* --- Services --- */
.services {
    padding: 100px 0;
    background: var(--color-off-white);
}

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

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-mint);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

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

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-midnight);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    color: var(--color-mint);
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 600;
    color: var(--color-midnight);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* --- About --- */
.about {
    padding: 100px 0;
    background: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-images {
    position: relative;
}

.about-img-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-img-main img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.about-img-secondary {
    position: absolute;
    bottom: -40px;
    right: -40px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 6px solid var(--color-white);
}

.about-img-secondary img {
    width: 220px;
    height: 220px;
    object-fit: cover;
}

.about-experience {
    position: absolute;
    top: -20px;
    left: -20px;
    background: var(--color-mint);
    color: var(--color-midnight);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.about-experience .exp-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 4px;
}

.about-experience .exp-text {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.about-content .section-tag {
    margin-bottom: 16px;
}

.about-content .section-title {
    margin-bottom: 24px;
}

.about-text {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 32px 0;
}

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

.feature-check {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-mint-light);
    border-radius: 50%;
    color: var(--color-mint-dark);
}

.feature-item span {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.4;
}

.about-content .btn {
    margin-top: 8px;
}

/* --- Projects --- */
.projects {
    padding: 100px 0;
    background: var(--color-midnight);
}

.projects .section-tag {
    background: rgba(52, 211, 153, 0.15);
    color: var(--color-mint);
}

.projects .section-title {
    color: var(--color-white);
}

.projects .section-subtitle {
    color: rgba(255, 255, 255, 0.6);
}

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

.project-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-midnight-light);
    transition: all var(--transition);
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

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

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.project-info {
    padding: 24px;
}

.project-category {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-mint);
    background: rgba(52, 211, 153, 0.1);
    padding: 4px 10px;
    border-radius: 100px;
    margin-bottom: 10px;
}

.project-info h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

/* --- CTA Banner --- */
.cta-banner {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-midnight) 0%, var(--color-midnight-light) 100%);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(52, 211, 153, 0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-banner .container {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.cta-content {
    flex: 1;
    min-width: 280px;
}

.cta-content h2 {
    font-family: var(--font-heading);
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 700;
    color: var(--color-white);
    text-transform: uppercase;
    line-height: 1.1;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    max-width: 480px;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

/* --- Contact --- */
.contact {
    padding: 100px 0;
    background: var(--color-off-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info .section-title {
    margin-bottom: 16px;
}

.contact-desc {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    gap: 16px;
}

.contact-icon {
    width: 52px;
    height: 52px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-midnight);
    border-radius: var(--radius-md);
    color: var(--color-mint);
}

.contact-item strong {
    display: block;
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-midnight);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
}

.contact-item a {
    color: var(--color-midnight-light);
}

.contact-item a:hover {
    color: var(--color-mint-dark);
}

/* --- Form --- */
.contact-form-wrapper {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-gray-100);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-midnight);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--color-text);
    background: var(--color-gray-50);
    border: 2px solid var(--color-gray-100);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    transition: all var(--transition);
    outline: none;
    width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-mint);
    background: var(--color-white);
    box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-note {
    font-size: 13px;
    color: var(--color-text-light);
    text-align: center;
}

.form-success {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 48px 24px;
    gap: 16px;
}

.form-success.active {
    display: flex;
}

.success-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-mint-light);
    border-radius: 50%;
    color: var(--color-mint-dark);
}

.form-success h3 {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-midnight);
    text-transform: uppercase;
}

.form-success p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.7;
    max-width: 320px;
}

/* --- Footer --- */
.footer {
    background: var(--color-midnight);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo .logo-icon {
    font-size: 18px;
}

.footer-logo .logo-text {
    font-size: 12px;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.7;
    margin-top: 16px;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 20px;
}

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

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--color-mint);
}

.footer-contact p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.8;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.55);
}

.footer-contact a:hover {
    color: var(--color-mint);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
}

/* --- Scroll Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
    .services-grid,
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid {
        gap: 48px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(10, 22, 40, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 32px 24px;
        gap: 24px;
        transform: translateY(-120%);
        transition: transform var(--transition);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .nav.open {
        transform: translateY(0);
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-content {
        padding: 100px 24px 60px;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-divider {
        display: none;
    }

    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .about-img-secondary {
        right: 0;
        bottom: -30px;
    }

    .about-img-main img {
        height: 300px;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .contact-form-wrapper {
        padding: 32px 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .cta-banner .container {
        flex-direction: column;
        text-align: center;
    }

    .cta-content p {
        margin: 0 auto;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }

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

    .cta-actions {
        flex-direction: column;
        width: 100%;
    }

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