/* ===================================
   DT & Sons Property Solutions
   Main Stylesheet
   =================================== */

/* --- CSS Custom Properties --- */
:root {
    --color-primary: #0d6efd;
    --color-primary-dark: #0a58ca;
    --color-accent: #00c2ff;
    --color-dark: #1a1a2e;
    --color-darker: #0f0f1a;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-white: #ffffff;
    --color-gray-light: #f5f7fa;
    --color-gray: #e2e8f0;
    --color-success: #28a745;

    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

a:hover {
    color: var(--color-primary-dark);
}

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.2;
    color: var(--color-dark);
}

/* --- Utility --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* --- Header --- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-darker);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
}

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

.logo-img {
    height: 60px;
    width: auto;
}

.logo-text {
    display: flex;
    flex-direction: column;
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.4rem;
    color: var(--color-white);
    line-height: 1.1;
    letter-spacing: 0.5px;
}

.logo-text small {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.main-nav ul {
    display: flex;
    gap: 2rem;
}

.main-nav a {
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 8px 0;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition);
}

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

.main-nav a:hover,
.main-nav a.active {
    color: var(--color-accent);
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-white);
    position: relative;
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 3px;
    background: var(--color-white);
    left: 0;
    transition: var(--transition);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--color-darker) 0%, #1a3a5c 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: url('../images/hero-bg.jpg') center/cover no-repeat;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 60px 20px;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-white);
    margin-bottom: 1rem;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* --- Services Section --- */
.services {
    padding: 80px 0;
    background: var(--color-gray-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--color-white);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

.service-card p {
    color: var(--color-text-light);
}

/* --- CTA Section --- */
.cta {
    padding: 60px 0;
    text-align: center;
    background: linear-gradient(135deg, var(--color-dark) 0%, #1a3a5c 100%);
    color: var(--color-white);
}

.cta h2 {
    color: var(--color-white);
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.cta p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.85);
}

/* --- Page Header --- */
.page-header {
    background: linear-gradient(135deg, var(--color-darker) 0%, #1a3a5c 100%);
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    color: var(--color-white);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.1rem;
}

/* --- About Page --- */
.about-content {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.about-text p {
    margin-bottom: 1rem;
    color: var(--color-text-light);
}

.about-text h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.about-list {
    list-style: none;
    padding: 0;
}

.about-list li {
    padding: 0.4rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-light);
}

.about-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: bold;
}

.about-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* --- Values Section --- */
.values {
    padding: 80px 0;
    background: var(--color-gray-light);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.value-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.value-card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
}

.value-card p {
    color: var(--color-text-light);
}

/* --- Contact Page --- */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.contact-form-wrapper h2,
.contact-info h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-form .form-group {
    margin-bottom: 1.25rem;
}

.contact-form label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-dark);
}

.required {
    color: #dc3545;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-gray);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

.contact-form textarea {
    resize: vertical;
}

.form-success {
    margin-top: 1.5rem;
    padding: 1rem;
    background: #d4edda;
    border-radius: var(--radius-sm);
    color: #155724;
}

.contact-info {
    background: var(--color-gray-light);
    padding: 2rem;
    border-radius: var(--radius-lg);
    height: fit-content;
}

.info-item {
    margin-bottom: 1.5rem;
}

.info-item h3 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.info-item p {
    color: var(--color-text-light);
}

.info-item a {
    color: var(--color-primary);
}

/* --- Footer --- */
.site-footer {
    background: var(--color-darker);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 30px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.5fr;
    gap: 2rem;
}

.footer-logo {
    height: 50px;
    margin-bottom: 1rem;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--color-white);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-links ul li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition);
}

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

.footer-contact p {
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.7);
}

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

/* --- Responsive --- */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: block;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-darker);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
    }

    .main-nav.is-open {
        max-height: 300px;
    }

    .main-nav ul {
        flex-direction: column;
        padding: 1rem 2rem;
        gap: 0.5rem;
    }

    .main-nav a {
        display: block;
        padding: 10px 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.6rem;
    }
}