/* ============================================
   OHG Properties — Custom Styles
   Teal + Slate Grey | Confident Corporate
   ============================================ */

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

:root {
    --teal-900: #0F766E;
    --teal-800: #0D9488;
    --teal-700: #0F766E;
    --teal-600: #14B8A6;
    --teal-50: #F0FDFA;
    --slate-950: #050C13;
    --slate-900: #0F172A;
    --slate-800: #1E293B;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748B;
    --slate-400: #94A3B8;
    --slate-300: #CBD5E1;
    --slate-200: #E2E8F0;
    --slate-100: #F1F5F9;
    --slate-50: #F8FAFC;
    --white: #FFFFFF;
    
    --font-heading: 'Manrope', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 4px 20px rgba(15, 23, 42, 0.1);
    --shadow-lg: 0 10px 40px rgba(15, 23, 42, 0.12);
    --shadow-xl: 0 20px 60px rgba(15, 23, 42, 0.15);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    color: var(--slate-700);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3 {
    font-family: var(--font-heading);
    color: var(--slate-900);
    line-height: 1.2;
    font-weight: 700;
}

h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    letter-spacing: -0.015em;
}

h3 {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.section-label {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--teal-800);
    margin-bottom: 12px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--teal-800);
    color: var(--white);
    border-color: var(--teal-800);
}

.btn-primary:hover {
    background: var(--teal-700);
    border-color: var(--teal-700);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--slate-700);
    border-color: var(--slate-300);
}

.btn-secondary:hover {
    border-color: var(--teal-800);
    color: var(--teal-800);
    transform: translateY(-2px);
}

.btn-white {
    background: var(--white);
    color: var(--teal-900);
    border-color: var(--white);
}

.btn-white:hover {
    background: var(--slate-50);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-full {
    width: 100%;
}

/* ============================================
   HEADER
   ============================================ */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--slate-200);
    transition: var(--transition);
}

#main-header.scrolled {
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--slate-900);
}

.logo-mark {
    background: var(--teal-800);
    color: var(--white);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
}

.logo-text {
    color: var(--slate-800);
}

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

.main-nav a:not(.btn) {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--slate-600);
    transition: var(--transition);
    position: relative;
}

.main-nav a:not(.btn):hover {
    color: var(--teal-800);
}

.main-nav a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--teal-800);
    transition: var(--transition);
}

.main-nav a:not(.btn):hover::after {
    width: 100%;
}

/* Mobile menu button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--slate-700);
    border-radius: 2px;
    transition: 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);
}

/* Mobile nav overlay */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--white);
    z-index: 999;
    padding: 100px 24px 40px;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.mobile-nav-overlay.active {
    display: flex;
}

.mobile-nav-link {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--slate-800);
    transition: var(--transition);
}

.mobile-nav-link:hover {
    color: var(--teal-800);
}

.mobile-cta {
    margin-top: 16px;
}

/* ============================================
   HERO
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 60px;
    background: linear-gradient(135deg, var(--slate-50) 0%, var(--white) 50%, var(--teal-50) 100%);
    overflow: hidden;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(13, 148, 136, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(13, 148, 136, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    background: var(--teal-50);
    border: 1px solid rgba(13, 148, 136, 0.2);
    color: var(--teal-800);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 8px 16px;
    border-radius: 50px;
    margin-bottom: 24px;
}

.hero-content h1 {
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.125rem;
    color: var(--slate-600);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    color: var(--slate-900);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--slate-500);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--slate-200);
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    height: 700px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.hero-image-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: var(--teal-800);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.15;
}

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

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

.about-image-wrap {
    position: relative;
}

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

.about-image-accent {
    position: absolute;
    top: -16px;
    left: -16px;
    width: 120px;
    height: 120px;
    background: var(--teal-800);
    border-radius: var(--radius-md);
    z-index: -1;
    opacity: 0.1;
}

.about-content h2 {
    margin-bottom: 20px;
}

.about-content > p {
    color: var(--slate-600);
    margin-bottom: 16px;
    font-size: 1.05rem;
}

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

.value-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--slate-800);
}

.value-item svg {
    color: var(--teal-800);
    flex-shrink: 0;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    padding: 100px 0;
    background: var(--slate-50);
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}

.section-header h2 {
    margin-top: 8px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--teal-800);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: var(--teal-50);
    border: 1px solid rgba(13, 148, 136, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--teal-800);
    margin-bottom: 24px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--teal-800);
    color: var(--white);
    border-color: var(--teal-800);
}

.service-card h3 {
    margin-bottom: 12px;
}

.service-card p {
    color: var(--slate-600);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ============================================
   AREA BANNER
   ============================================ */
.area-banner {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
}

.area-bg {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(135deg, rgba(15, 118, 110, 0.92) 0%, rgba(13, 23, 42, 0.88) 100%),
        url('https://images.pexels.com/photos/3958949/pexels-photo-3958949.jpeg?auto=compress&cs=tinysrgb&fit=crop&w=1400&h=600') center/cover no-repeat;
}

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

.area-text .section-label {
    color: rgba(255, 255, 255, 0.7);
}

.area-text h2 {
    color: var(--white);
    margin-bottom: 16px;
}

.area-text p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.05rem;
    max-width: 560px;
    line-height: 1.7;
}

/* ============================================
   PROCESS
   ============================================ */
.process {
    padding: 100px 0;
    background: var(--white);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.process-step {
    text-align: center;
    padding: 40px 24px;
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 52px;
    right: -16px;
    width: 32px;
    height: 2px;
    background: var(--slate-200);
}

.step-number {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: var(--slate-100);
    line-height: 1;
    margin-bottom: 16px;
}

.process-step h3 {
    margin-bottom: 12px;
    color: var(--slate-900);
}

.process-step p {
    color: var(--slate-600);
    font-size: 0.95rem;
    line-height: 1.7;
}

.process-step a {
    color: var(--teal-800);
    font-weight: 600;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.process-step a:hover {
    border-bottom-color: var(--teal-800);
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    padding: 100px 0;
    background: var(--slate-50);
}

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

.contact-info h2 {
    margin-bottom: 16px;
}

.contact-info > p {
    color: var(--slate-600);
    font-size: 1.05rem;
    margin-bottom: 36px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.contact-item svg {
    color: var(--teal-800);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-item strong {
    display: block;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 4px;
}

.contact-item span,
.contact-item a {
    color: var(--slate-600);
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-item a:hover {
    color: var(--teal-800);
}

/* Form */
.contact-form-wrap {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

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

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

.form-group label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--slate-800);
}

.form-group input,
.form-group textarea {
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: 12px 16px;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-sm);
    color: var(--slate-900);
    background: var(--slate-50);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--teal-800);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--slate-400);
}

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

.form-privacy {
    font-size: 0.8rem;
    color: var(--slate-400);
    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 svg {
    color: var(--teal-800);
}

.form-success h3 {
    font-size: 1.5rem;
    color: var(--slate-900);
}

.form-success p {
    color: var(--slate-600);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
    background: var(--slate-900);
    color: var(--slate-400);
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    padding: 60px 24px;
    align-items: start;
}

.footer-brand .logo {
    margin-bottom: 12px;
}

.footer-brand .logo-mark {
    background: var(--teal-800);
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--slate-400);
    max-width: 260px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--slate-400);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--teal-600);
}

.footer-contact p {
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.footer-contact a {
    color: var(--teal-600);
    transition: var(--transition);
}

.footer-contact a:hover {
    color: var(--teal-50);
}

.footer-bottom {
    border-top: 1px solid var(--slate-800);
    padding: 20px 24px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--slate-500);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-image {
        max-width: 500px;
    }
    
    .hero-image img {
        height: 500px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image-wrap {
        max-width: 500px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .process-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .process-step:not(:last-child)::after {
        display: none;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: row;
        gap: 24px;
    }
    
    .area-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .hero-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .stat-divider {
        display: none;
    }
    
    .about-values {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrap {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-content h1 {
        font-size: 1.9rem;
    }
    
    .service-card {
        padding: 28px;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }