/* Base Design System for Riverton Integration Advisory */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,600&family=Inter:wght@300;400;500;600&display=swap');

:root {
    --primary-dark: #0a1424;
    --primary-main: #132742;
    --primary-light: #2c4263;
    --accent-gold: #c2a173;
    --accent-gold-light: #d8c3a5;
    --bg-cream: #f9f8f6;
    --bg-white: #ffffff;
    --text-dark: #1a1a1a;
    --text-muted: #555555;
    --border-light: #e0dcd3;
    
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Inter', sans-serif;
    
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
}

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

body {
    font-family: var(--font-sans);
    margin: 0;
    padding: 0;
    background-color: var(--bg-cream);
    color: var(--text-dark);
    font-size: 16px;
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    color: var(--primary-dark);
    line-height: 1.2;
    margin-top: 0;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); margin-bottom: var(--space-md); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); margin-bottom: var(--space-sm); }
h3 { font-size: clamp(1.5rem, 3vw, 2.5rem); margin-bottom: var(--space-sm); }

p {
    margin-top: 0;
    margin-bottom: var(--space-sm);
    font-weight: 300;
}

a {
    color: var(--primary-main);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--accent-gold);
}

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

/* Layout */
.container {
    width: 90%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

.grid {
    display: grid;
    gap: var(--space-md);
}

.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 768px) {
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Header & Nav */
header {
    background-color: var(--primary-dark);
    color: var(--bg-cream);
    padding: var(--space-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

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

.logo {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--bg-cream);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--accent-gold);
}

.nav-links {
    display: none;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--space-md);
}

@media (min-width: 992px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    color: var(--bg-cream);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--accent-gold);
    transition: width 0.3s ease;
}

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

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

.mobile-menu-btn {
    display: block;
    background: none;
    border: none;
    color: var(--bg-cream);
    font-size: 1.5rem;
    cursor: pointer;
}

@media (min-width: 992px) {
    .mobile-menu-btn { display: none; }
}

/* Mobile Nav Overlay */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--primary-dark);
    z-index: 2000;
    transition: right 0.4s ease;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
}

.mobile-nav.open {
    right: 0;
}

.mobile-nav-close {
    align-self: flex-end;
    background: none;
    border: none;
    color: var(--bg-cream);
    font-size: 2rem;
    cursor: pointer;
    margin-bottom: var(--space-lg);
}

.mobile-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.mobile-nav a {
    color: var(--bg-cream);
    font-family: var(--font-serif);
    font-size: 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--accent-gold);
    color: var(--primary-dark);
}

.btn-primary:hover {
    background-color: var(--accent-gold-light);
    color: var(--primary-dark);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.btn-outline:hover {
    background-color: var(--accent-gold);
    color: var(--primary-dark);
}

.btn-dark {
    background-color: var(--primary-dark);
    color: var(--bg-cream);
    border-color: var(--primary-dark);
}

.btn-dark:hover {
    background-color: var(--primary-light);
}

/* Sections */
section {
    padding: var(--space-xl) 0;
}

.section-bg-dark {
    background-color: var(--primary-dark);
    color: var(--bg-cream);
}
.section-bg-dark h1, .section-bg-dark h2, .section-bg-dark h3 {
    color: var(--bg-cream);
}

.section-bg-white {
    background-color: var(--bg-white);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-lg);
}

.section-header-left {
    max-width: 800px;
    margin-bottom: var(--space-lg);
}

.kicker {
    display: block;
    font-family: var(--font-sans);
    color: var(--accent-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    margin-bottom: var(--space-xs);
    font-weight: 600;
}

/* Hero Variant - Editorial */
.hero-editorial {
    min-height: 90vh;
    display: flex;
    align-items: center;
    background-color: var(--primary-dark);
    color: var(--bg-cream);
    position: relative;
    overflow: hidden;
    padding-top: var(--space-xl);
}

.hero-editorial::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(10,20,36,0.9) 0%, rgba(19,39,66,0.6) 100%),
                url('https://images.unsplash.com/photo-1497366216548-37526070297c?q=80&w=2000&auto=format&fit=crop') center/cover no-repeat;
    z-index: 0;
    opacity: 0.6;
}

.hero-editorial .container {
    position: relative;
    z-index: 1;
}

.hero-editorial h1 {
    font-size: clamp(3rem, 7vw, 6rem);
    max-width: 1000px;
    color: var(--bg-cream);
    line-height: 1.1;
    margin-bottom: var(--space-md);
}

.hero-editorial p.lead {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    max-width: 700px;
    margin-bottom: var(--space-md);
    color: var(--border-light);
    font-weight: 300;
}

/* Content Blocks */
.editorial-block {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    align-items: center;
}

@media (min-width: 992px) {
    .editorial-block {
        flex-direction: row;
    }
    .editorial-block:nth-child(even) {
        flex-direction: row-reverse;
    }
}

.editorial-content {
    flex: 1;
}

.editorial-image {
    flex: 1;
    position: relative;
}

.editorial-image img {
    box-shadow: 20px 20px 0 var(--border-light);
    object-fit: cover;
    aspect-ratio: 4/3;
    width: 100%;
}

.section-bg-dark .editorial-image img {
    box-shadow: 20px 20px 0 var(--primary-main);
}

/* Service / Info Cards */
.card {
    background: var(--bg-white);
    padding: var(--space-md);
    border-top: 4px solid var(--accent-gold);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--primary-light);
    margin-bottom: var(--space-sm);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

.card p {
    color: var(--text-muted);
    flex-grow: 1;
}

.card-link {
    margin-top: var(--space-sm);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.card-link::after {
    content: '→';
    transition: transform 0.3s;
}
.card-link:hover::after {
    transform: translateX(5px);
}

/* Numbers / Stats - Niche specific style */
.stat-item {
    border-left: 2px solid var(--accent-gold);
    padding-left: var(--space-sm);
}

.stat-item h4 {
    font-size: 3rem;
    color: var(--primary-dark);
    margin-bottom: 0;
    line-height: 1;
}

.section-bg-dark .stat-item h4 {
    color: var(--accent-gold);
}

.stat-item p {
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    margin-top: 0.5rem;
    font-weight: 600;
}

/* Footer */
footer {
    background-color: var(--primary-dark);
    color: var(--border-light);
    padding: var(--space-xl) 0 var(--space-sm);
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

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

.footer-brand h2 {
    color: var(--bg-cream);
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.footer-brand p {
    max-width: 400px;
    font-weight: 300;
}

.footer-links h4 {
    color: var(--bg-cream);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-sm);
}

.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-links a {
    color: var(--border-light);
    font-weight: 300;
}

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

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--space-md);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
}

/* Page Header */
.page-header {
    background-color: var(--primary-dark);
    color: var(--bg-cream);
    padding: var(--space-xl) 0 var(--space-lg);
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.page-header h1 {
    color: var(--bg-cream);
    max-width: 900px;
    margin: 0 auto;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Utilities */
.text-center { text-align: center; }
.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

/* Custom Article/Insight Content */
.article-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.article-content h2 {
    margin-top: var(--space-lg);
}

.article-content blockquote {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--primary-dark);
    border-left: 4px solid var(--accent-gold);
    margin: var(--space-md) 0;
    padding-left: var(--space-sm);
    font-style: italic;
}

/* Contact Form */
.form-group {
    margin-bottom: var(--space-sm);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-light);
    border-radius: 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    background-color: var(--bg-white);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-gold);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* Base structural layout overrides */
main {
    flex-grow: 1;
}
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}