/* 
==============================================
Imperilex Legal - Global Firm Master Stylesheet
Theme: Luxury Minimalist (Black, Gold, White)
==============================================
*/

:root {
    /* Premium Color Palette */
    --c-black-pure: #000000;
    --c-black: #0a0a0a;
    --c-charcoal: #1a1a1a;
    --c-gold-light: #e6c875;
    --c-gold: #c5a059;
    --c-gold-dark: #a3823d;
    --c-white: #ffffff;
    --c-gray-light: #f9f9f9;
    --c-gray: #888888;
    --c-gray-dark: #333333;
    
    /* Typography */
    --f-serif: 'Playfair Display', Georgia, serif;
    --f-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing & Layout */
    --w-container: 1400px;
    --w-container-narrow: 1000px;
    --sp-sm: 1.5rem;
    --sp-md: 3rem;
    --sp-lg: 5rem;
    --sp-xl: 8rem;
    
    /* Transitions */
    --tr-fast: 0.2s ease;
    --tr-normal: 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
    --tr-slow: 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* ==========================================================================
   Base & Typography
   ========================================================================== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--f-sans);
    color: var(--c-charcoal);
    background-color: var(--c-white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--f-serif);
    font-weight: 400;
    line-height: 1.2;
    color: var(--c-black);
}

a { text-decoration: none; color: inherit; transition: var(--tr-fast); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* Wrapper Utilities */
.container { width: 100%; max-width: var(--w-container); margin: 0 auto; padding: 0 4%; }
.container-narrow { width: 100%; max-width: var(--w-container-narrow); margin: 0 auto; padding: 0 4%; }
.section-padding { padding: var(--sp-xl) 0; }
.section-padding-sm { padding: var(--sp-lg) 0; }

.bg-black { background-color: var(--c-black); color: var(--c-white); }
.bg-black h1, .bg-black h2, .bg-black h3, .bg-black h4 { color: var(--c-white); }
.bg-gray { background-color: var(--c-gray-light); }
.gold-text { color: var(--c-gold); }

/* Typography Classes */
.heading-xl { font-size: clamp(3rem, 6vw, 5.5rem); line-height: 1.1; margin-bottom: 2rem; letter-spacing: -0.02em; }
.heading-lg { font-size: clamp(2.5rem, 4vw, 3.5rem); margin-bottom: 1.5rem; }
.heading-md { font-size: clamp(1.8rem, 2.5vw, 2.2rem); margin-bottom: 1rem; }
.kicker { display: block; font-family: var(--f-sans); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 2px; color: var(--c-gold); margin-bottom: 1rem; font-weight: 600; }
.lead { font-size: 1.25rem; font-weight: 300; color: var(--c-gray); max-width: 800px; margin-bottom: 2.5rem; }

/* Buttons & Links */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-family: var(--f-sans);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--tr-normal);
    position: relative;
    overflow: hidden;
}

.btn-gold {
    background-color: var(--c-gold);
    color: var(--c-black-pure);
    border-color: var(--c-gold);
}

.btn-gold:hover {
    background-color: var(--c-black-pure);
    color: var(--c-gold);
    border-color: var(--c-black-pure);
}

.btn-outline-white {
    background-color: transparent;
    color: var(--c-white);
    border-color: rgba(255,255,255,0.3);
}

.btn-outline-white:hover {
    background-color: var(--c-white);
    color: var(--c-black-pure);
}

.link-arrow {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    color: var(--c-gold);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.link-arrow::after { content: '→'; transition: transform 0.3s ease; }
.link-arrow:hover::after { transform: translateX(5px); }

/* ==========================================================================
   Global Header Navigation
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    z-index: 1000;
    transition: var(--tr-normal);
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.site-header.scrolled {
    background-color: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    border-bottom: 1px solid rgba(197, 160, 89, 0.2);
}

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

.logo a { display: flex; align-items: center; gap: 1rem; }
.logo img { height: 40px; }
.logo-text { font-family: var(--f-serif); font-size: 1.6rem; letter-spacing: 2px; color: var(--c-white); }

.desktop-nav { display: none; }

@media (min-width: 1200px) {
    .desktop-nav { display: block; }
    .nav-list { display: flex; gap: 2rem; align-items: center; }
    .nav-item a {
        color: var(--c-white);
        font-size: 0.85rem;
        text-transform: uppercase;
        letter-spacing: 1px;
        position: relative;
    }
    .nav-item a::after {
        content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 1px;
        background-color: var(--c-gold); transition: width var(--tr-normal);
    }
    .nav-item a:hover::after { width: 100%; }
    .nav-item.active a { color: var(--c-gold); }
}

/* Mobile Menu */
.menu-btn {
    display: flex; flex-direction: column; justify-content: space-between;
    width: 30px; height: 20px; background: none; border: none; cursor: pointer; z-index: 1002;
}
.menu-btn span { width: 100%; height: 2px; background-color: var(--c-white); transition: var(--tr-normal); }

@media (min-width: 1200px) { .menu-btn { display: none; } }

/* ==========================================================================
   Hero Section & Canvas Ripple
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 800px;
    display: flex;
    align-items: center;
    background-color: var(--c-black);
    overflow: hidden;
}

/* The interactive water ripple canvas sits behind the content */
#canvas-ripple {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 1;
    opacity: 0.6;
}

.hero-content {
    position: relative;
    z-index: 10;
    color: var(--c-white);
    max-width: 900px;
    margin-top: 50px; /* Offset for header */
}

/* ==========================================================================
   CSS Grid Lists (Practice Areas & Sub-services)
   ========================================================================== */
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 2px; background-color: #eee; border: 1px solid #eee; }
@media (min-width: 768px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.grid-card {
    background-color: var(--c-white);
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: var(--tr-normal);
    position: relative;
    overflow: hidden;
}

.grid-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 0;
    background-color: var(--c-black); transition: height var(--tr-normal); z-index: 0;
}

.grid-card-content { position: relative; z-index: 1; flex-grow: 1; }

.grid-card h3 { font-size: 1.5rem; margin-bottom: 1rem; transition: color var(--tr-fast); }
.grid-card p { color: var(--c-gray); font-size: 0.95rem; margin-bottom: 2rem; transition: color var(--tr-fast); }

.grid-card:hover::before { height: 100%; }
.grid-card:hover h3 { color: var(--c-gold); }
.grid-card:hover p { color: #cccccc; }

/* Sub-services specific styling */
.subservice-nav {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-bottom: 4rem;
}
@media (min-width: 768px) { .subservice-nav { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); } }

.subservice-box {
    display: flex; align-items: center; justify-content: space-between;
    padding: 1.5rem; border: 1px solid #eee; background: var(--c-white);
    font-family: var(--f-sans); font-weight: 500; font-size: 1.1rem;
    cursor: pointer; transition: all 0.3s ease;
}

.subservice-box:hover {
    border-color: var(--c-gold);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.subservice-box::after { content: '↓'; color: var(--c-gold); }

.subservice-detail-block {
    padding: 4rem 0;
    border-bottom: 1px solid #eee;
}

/* ==========================================================================
   WhatsApp Bottom CTA
   ========================================================================== */
.whatsapp-cta-section {
    background-color: var(--c-gray-light);
    padding: 4rem 0;
    border-top: 1px solid #eee;
    text-align: center;
}

.wa-btn-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.btn-wa {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background-color: #25D366; /* Official WA green */
    color: white;
    padding: 1rem 2rem;
    border-radius: 5px;
    font-family: var(--f-sans);
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-wa:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.3);
    color: white;
}

.btn-wa.urgent {
    background-color: var(--c-black);
    border: 2px solid var(--c-gold);
    color: var(--c-gold);
}

.btn-wa.urgent:hover {
    background-color: var(--c-gold);
    color: var(--c-black);
    box-shadow: 0 10px 20px rgba(197, 160, 89, 0.3);
}

/* ==========================================================================
   Global Footer
   ========================================================================== */
.site-footer {
    background-color: var(--c-black);
    color: var(--c-white);
    padding: 6rem 0 2rem;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 4rem;
}

@media (min-width: 768px) { .footer-top { grid-template-columns: 2fr 1fr 1fr 1fr; } }

.footer-heading { color: var(--c-gold); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 1.5rem; }
.footer-links li { margin-bottom: 0.75rem; }
.footer-links a { color: #888; font-size: 0.9rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--c-white); }

.footer-bottom {
    display: flex; flex-direction: column; justify-content: space-between; align-items: center;
    color: #666; font-size: 0.8rem; gap: 1rem;
}

@media (min-width: 768px) { .footer-bottom { flex-direction: row; } }

/* ==========================================================================
   Animations
   ========================================================================== */
.fade-in-up {
    opacity: 0; transform: translateY(30px);
    animation: fadeInUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}
.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

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