/* =================================================================
   BRANE ENTERPRISES - SOPHISTICATED CONSULTING MICROSITE
   Elegant, modern design with professional imagery
   ================================================================= */

:root {
    /* Professional Color Palette - From Brand Guidelines */
    --primary: #001a33;
    --primary-light: #003366;
    --accent: #F58634;
    --accent-light: #FF9D5C;
    --success: #10B981;
    --bg-light: #F7FAFC;
    --bg-white: #FFFFFF;
    --text-primary: #3C3C3C;
    --text-secondary: #4A5568;
    --text-muted: #718096;
    --border: #E2E8F0;
    --shadow: rgba(0, 0, 0, 0.1);
    --highlight: #B8E6F5;
    
    /* Typography - Professional Fonts */
    --font-sans: 'Raleway', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Montserrat', var(--font-sans);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === RESET & BASE === */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

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

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

ul, ol {
    list-style: none;
}

/* === CONTAINER === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-2xl);
    }
}

/* === NAVIGATION === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 4px 20px var(--shadow);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 80px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-2xl);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
}

.nav-menu a {
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

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

.nav-menu a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: var(--space-sm) var(--space-xl);
    background: var(--accent);
    color: white !important;
    border-radius: var(--radius-md);
    font-weight: 600;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(245, 134, 52, 0.3);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        gap: 0;
        padding: var(--space-lg) 0;
        box-shadow: 0 10px 30px var(--shadow);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu a {
        padding: var(--space-lg) var(--space-2xl);
        width: 100%;
    }
}

/* === HERO SECTION === */
.hero {
    padding: 140px 0 var(--space-4xl);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    position: relative;
    overflow: hidden;
    color: white;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(245, 134, 52, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-xl);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: white;
    margin-bottom: var(--space-xl);
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-xl);
    color: white;
}

.hero-title .gradient {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .hero {
        padding: 120px 0 var(--space-3xl);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-2xl);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: var(--accent);
    color: white;
    box-shadow: 0 4px 12px rgba(245, 134, 52, 0.3);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 134, 52, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid white;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1.125rem;
}

/* === SECTION === */
.section {
    padding: var(--space-4xl) 0;
}

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

.section-header {
    max-width: 800px;
    margin: 0 auto var(--space-3xl);
    text-align: center;
}

.section-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-lg);
    background: rgba(245, 134, 52, 0.1);
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 50px;
    margin-bottom: var(--space-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--space-lg);
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .section {
        padding: var(--space-3xl) 0;
    }
    
    .section-title {
        font-size: 1.875rem;
    }
}

/* === INDUSTRIES GRID === */
.industries-grid {
    display: grid;
    gap: var(--space-xl);
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.industry-card {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.industry-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.industry-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--border) 100%);
}

.industry-content {
    padding: var(--space-2xl);
}

.industry-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--primary);
}

.industry-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.industry-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.industry-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.industry-features li::before {
    content: '•';
    color: var(--accent);
    font-weight: 700;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.industry-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--accent);
    font-weight: 600;
    transition: var(--transition);
}

.industry-card:hover .industry-cta {
    gap: var(--space-md);
}

/* === BENEFITS GRID === */
.benefits-grid {
    display: grid;
    gap: var(--space-xl);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.benefit-card {
    background: white;
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid var(--border);
    text-align: center;
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    object-fit: contain;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.benefit-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--primary);
}

.benefit-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.benefit-stat {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    background: linear-gradient(135deg, rgba(245, 134, 52, 0.1), rgba(16, 185, 129, 0.1));
    color: var(--accent);
    font-weight: 700;
    font-size: 0.875rem;
    border-radius: 50px;
}

/* === USE CASE CARD === */
.use-case-card {
    background: white;
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: var(--space-xl);
    border-left: 4px solid var(--accent);
    transition: var(--transition);
}

.use-case-card:hover {
    transform: translateX(4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.use-case-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--space-md);
}

.use-case-description {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* === CTA SECTION === */
.cta-section {
    padding: var(--space-4xl) 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--space-lg);
    color: white;
}

.cta-description {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--space-2xl);
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

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

.btn-white:hover {
    background: var(--bg-light);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .cta-title {
        font-size: 1.875rem;
    }
}

/* === FOOTER === */
.footer {
    background: var(--primary);
    color: white;
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    gap: var(--space-2xl);
    margin-bottom: var(--space-3xl);
    grid-template-columns: 2fr repeat(3, 1fr);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.footer-logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-description {
    font-size: 0.9375rem;
    line-height: 1.7;
    opacity: 0.8;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    font-size: 0.9375rem;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-light);
    padding-left: var(--space-xs);
}

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-copyright {
    font-size: 0.875rem;
    opacity: 0.7;
}

/* === FORM STYLES === */
.form-group {
    margin-bottom: var(--space-xl);
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition);
    font-family: var(--font-sans);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

/* === ANIMATIONS === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* === UTILITIES === */
.text-center {
    text-align: center;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }