/* =========================================
   CSS Variables & Theming
========================================= */
:root {
    --primary: #0B132B;
    --secondary: #1D4ED8;
    --accent: #D4AF37;
    --bg-main: #F8FAFC;
    --bg-light: #FFFFFF;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --border: #E2E8F0;
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --hover-shadow: 0 20px 40px rgba(29, 78, 216, 0.15);
    --nav-bg: rgba(248, 250, 252, 0.9);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --font-btn: 'Poppins', sans-serif;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary: #D4AF37; /* Accent becomes primary visual identifier */
    --secondary: #3B82F6;
    --bg-main: #0B132B;
    --bg-light: #152243;
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    --border: #1E293B;
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --hover-shadow: 0 20px 40px rgba(212, 175, 55, 0.15);
    --nav-bg: rgba(11, 19, 43, 0.9);
}

/* =========================================
   Reset & Base Styles
========================================= */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; color: var(--text-main); }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* Utilities */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 100px 0; }
.bg-light { background-color: var(--bg-light); }
.text-center { text-align: center; }
.w-100 { width: 100%; }
.section-header { text-align: center; margin-bottom: 50px; }
.section-title { font-size: 2.5rem; margin-bottom: 15px; }
.section-subtitle { color: var(--accent); font-family: var(--font-btn); font-size: 1rem; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 10px; display: block;}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-family: var(--font-btn);
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}
.btn-primary { background: var(--secondary); color: #fff; }
.btn-primary:hover { background: var(--accent); color: #fff; box-shadow: var(--hover-shadow); transform: translateY(-3px); }
.btn-outline { background: transparent; border: 2px solid #fff; color: #fff; }
.btn-outline:hover { background: #fff; color: var(--primary); }

/* =========================================
   Components (Loader, Scroll, Floating)
========================================= */
#loader { position: fixed; inset: 0; background: var(--bg-main); z-index: 9999; display: flex; justify-content: center; align-items: center; transition: opacity 0.5s; }
.spinner { width: 50px; height: 50px; border: 4px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { 100% { transform: rotate(360deg); } }

.scroll-progress { position: fixed; top: 0; left: 0; height: 4px; background: var(--accent); z-index: 1001; width: 0%; transition: width 0.1s; }

.floating-btn {
    position: fixed; right: 20px; width: 50px; height: 50px;
    border-radius: 50%; color: #fff; display: flex; justify-content: center; align-items: center;
    font-size: 1.5rem; box-shadow: 0 4px 10px rgba(0,0,0,0.2); z-index: 99; transition: var(--transition);
}
.whatsapp { bottom: 20px; background: #25D366; }
.whatsapp:hover { background: #1ebd5a; transform: scale(1.1); }
.call { bottom: 80px; background: var(--secondary); }
.call:hover { background: var(--accent); transform: scale(1.1); }
.back-to-top { bottom: 140px; background: var(--primary); border: none; cursor: pointer; opacity: 0; visibility: hidden; }
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--accent); transform: translateY(-5px); }

/* =========================================
   Navigation
========================================= */
header {
    position: fixed; width: 100%; top: 0; z-index: 1000;
    transition: var(--transition); border-bottom: 1px solid transparent;
}
header.scrolled {
    background: var(--nav-bg); backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border); box-shadow: var(--card-shadow);
}
.nav-container {
    max-width: 1200px; margin: 0 auto; padding: 20px;
    display: flex; justify-content: space-between; align-items: center;
}
.logo { font-size: 1.5rem; font-family: var(--font-heading); font-weight: 700; color: var(--text-main); }
.logo i { color: var(--accent); margin-right: 8px; }
.logo span { color: var(--secondary); }
[data-theme="dark"] .logo span { color: var(--text-main); }

.nav-links { display: flex; gap: 25px; }
.nav-links a { font-weight: 500; font-size: 0.95rem; position: relative; }
.nav-links a::after {
    content: ''; position: absolute; bottom: -5px; left: 0;
    width: 0%; height: 2px; background: var(--accent); transition: var(--transition);
}
.nav-links a:hover::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 15px; }
.dark-mode-toggle { background: transparent; border: none; font-size: 1.2rem; cursor: pointer; color: var(--text-main); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.hamburger span { width: 25px; height: 3px; background: var(--text-main); transition: var(--transition); }

/* =========================================
   Hero Section
========================================= */
.hero {
    height: 100vh; min-height: 600px; display: flex; align-items: center;
    position: relative; background: url('https://images.unsplash.com/photo-1589829085413-56de8ae18c73?auto=format&fit=crop&q=80&w=1920') center/cover fixed;
}
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(to right, rgba(11, 19, 43, 0.9), rgba(11, 19, 43, 0.4)); }
.hero-content { position: relative; z-index: 1; max-width: 800px; margin-left: 10%; padding: 0 20px; color: #fff; }
.hero h1 { font-size: 4rem; line-height: 1.1; margin-bottom: 20px; color: #fff; }
.hero p { font-size: 1.2rem; margin-bottom: 30px; opacity: 0.9; }
.hero-buttons { display: flex; gap: 15px; }

/* =========================================
   About Section
========================================= */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-image { position: relative; border-radius: 8px; overflow: hidden; box-shadow: var(--card-shadow); }
.about-image img { transition: var(--transition); }
.about-image:hover img { transform: scale(1.05); }
.experience-badge {
    position: absolute; bottom: -20px; right: 20px; background: var(--secondary); color: #fff;
    padding: 20px; border-radius: 8px; box-shadow: var(--hover-shadow); text-align: center;
}
.experience-badge .years { display: block; font-size: 2.5rem; font-weight: 700; font-family: var(--font-heading); color: var(--accent); }
.core-values { margin-top: 20px; }
.core-values li { margin-bottom: 10px; font-weight: 500; display: flex; align-items: center; gap: 10px; }
.core-values i { color: var(--accent); }

/* =========================================
   Practice Areas (Cards)
========================================= */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.card {
    background: var(--bg-light); padding: 30px; border-radius: 8px; text-align: center;
    border: 1px solid var(--border); box-shadow: var(--card-shadow); transition: var(--transition);
}
.card i { font-size: 2.5rem; color: var(--secondary); margin-bottom: 20px; transition: var(--transition); }
.card h3 { margin-bottom: 15px; font-size: 1.3rem; }
.card:hover { transform: translateY(-10px); box-shadow: var(--hover-shadow); border-color: var(--accent); }
.card:hover i { color: var(--accent); transform: scale(1.1); }

/* =========================================
   Why Choose Us & Timeline
========================================= */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.feature-item {
    display: flex; align-items: center; gap: 15px; padding: 20px; background: var(--bg-main);
    border-radius: 8px; border: 1px solid var(--border);
}
.feature-item i { font-size: 1.5rem; color: var(--accent); }

.timeline { display: flex; justify-content: space-between; position: relative; gap: 20px; flex-wrap: wrap; }
.timeline::before {
    content: ''; position: absolute; top: 35px; left: 0; width: 100%; height: 2px;
    background: var(--border); z-index: 0;
}
.timeline-step { flex: 1; min-width: 200px; text-align: center; position: relative; z-index: 1; }
.timeline-step .icon {
    width: 70px; height: 70px; background: var(--bg-light); border: 2px solid var(--accent);
    border-radius: 50%; margin: 0 auto 20px; display: flex; justify-content: center; align-items: center;
    font-size: 1.5rem; color: var(--secondary); box-shadow: var(--card-shadow);
}
.timeline-step h4 { margin-bottom: 10px; }

/* =========================================
   Statistics Counter
========================================= */
.stats-section {
    background: url('https://images.unsplash.com/photo-1453928582365-b6ad33cbcf64?auto=format&fit=crop&q=80&w=1920') center/cover fixed;
    position: relative; color: #fff; padding: 80px 0;
}
.stats-overlay { position: absolute; inset: 0; background: rgba(11, 19, 43, 0.85); }
.stats-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 30px; text-align: center; }
.stat-item span { font-size: 3.5rem; font-weight: 700; font-family: var(--font-heading); color: var(--accent); }
.stat-item p { font-size: 1.1rem; text-transform: uppercase; letter-spacing: 1px; }

/* =========================================
   Testimonials Slider
========================================= */
.slider-container { overflow: hidden; width: 100%; position: relative; padding: 20px 0; }
.slider-track { display: flex; transition: transform 0.5s ease-in-out; }
.slide {
    min-width: 100%; padding: 40px; background: var(--bg-main); border-radius: 8px;
    text-align: center; border: 1px solid var(--border); box-shadow: var(--card-shadow);
}
.stars { color: var(--accent); margin-bottom: 20px; font-size: 1.2rem; }
.slide p { font-size: 1.2rem; font-style: italic; margin-bottom: 20px; color: var(--text-muted); }
.slide h4 { color: var(--secondary); }

/* =========================================
   FAQ Accordion
========================================= */
.accordion-container { max-width: 800px; margin: 0 auto; }
.accordion-item { border-bottom: 1px solid var(--border); margin-bottom: 10px; }
.accordion-header {
    width: 100%; text-align: left; padding: 20px; font-size: 1.1rem; font-weight: 600;
    cursor: pointer; display: flex; justify-content: space-between; align-items: center;
    background: var(--bg-light); border-radius: 4px; transition: var(--transition);
}
.accordion-header:hover, .accordion-item.active .accordion-header { color: var(--secondary); }
.accordion-header i { transition: transform 0.3s; }
.accordion-item.active .accordion-header i { transform: rotate(180deg); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; padding: 0 20px; }
.accordion-item.active .accordion-content { max-height: 200px; padding: 20px; }

/* =========================================
   Contact Form & Footer
========================================= */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 50px; }
.info-item { display: flex; gap: 20px; margin-bottom: 30px; }
.info-item i { font-size: 1.5rem; color: var(--accent); background: var(--bg-light); padding: 15px; border-radius: 8px; box-shadow: var(--card-shadow); height: max-content; }
.contact-form { background: var(--bg-light); padding: 40px; border-radius: 8px; box-shadow: var(--card-shadow); border: 1px solid var(--border); }
.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: 4px;
    background: var(--bg-main); color: var(--text-main); font-family: var(--font-body); outline: none; transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1); }
.form-message { margin-top: 15px; font-weight: 600; text-align: center; }

.footer { background: #050B14; color: #94A3B8; padding: 80px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer h4 { color: #fff; margin-bottom: 20px; }
.footer-links a { display: block; margin-bottom: 10px; }
.footer-links a:hover { color: var(--accent); padding-left: 5px; }
.social-icons a {
    display: inline-flex; justify-content: center; align-items: center; width: 40px; height: 40px;
    background: rgba(255,255,255,0.05); color: #fff; border-radius: 50%; margin-right: 10px; transition: var(--transition);
}
.social-icons a:hover { background: var(--accent); transform: translateY(-3px); }
.footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.9rem; }

/* =========================================
   Animations & Media Queries
========================================= */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.active { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }

@media (max-width: 992px) {
    .about-grid, .contact-grid { grid-template-columns: 1fr; }
    .timeline::before { display: none; }
    .timeline { flex-direction: column; align-items: flex-start; }
    .timeline-step { display: flex; align-items: center; gap: 20px; text-align: left; }
    .timeline-step .icon { margin: 0; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .nav-links, .nav-btn { display: none; }
    .hamburger { display: flex; }
    .nav-links.active {
        display: flex; flex-direction: column; position: absolute; top: 100%; left: 0;
        width: 100%; background: var(--nav-bg); padding: 20px; text-align: center;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1); border-bottom: 1px solid var(--border);
    }
    .footer-grid { grid-template-columns: 1fr; }
}