/* ==========================================================================
   Walker Advisory Solutions - Main Stylesheet
   ========================================================================== */

/* CSS Variables - Easy to customize brand colors */
:root {
    --color-primary: #1e3a5f;       /* Deep navy blue */
    --color-primary-light: #2d5a8a;
    --color-primary-dark: #0f2744;
    --color-accent: #3b82f6;         /* Bright blue accent */
    --color-accent-light: #60a5fa;

    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-inverse: #ffffff;

    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-bg-dark: #1e3a5f;

    --color-border: #e5e7eb;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;

    --max-width: 1200px;
    --border-radius: 8px;
    --transition: 0.3s ease;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary-dark);
}

h1 { font-size: 2.75rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-sm);
}

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

a:hover {
    color: var(--color-primary);
}

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

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border-radius: var(--border-radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-text-inverse);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-inverse);
}

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

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-primary-dark);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-img {
    height: 80px;
    width: auto;
}

.logo:hover {
    opacity: 0.9;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-menu a {
    color: var(--color-text-inverse);
    font-weight: 500;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-text-inverse);
    transition: var(--transition);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-text-inverse);
    padding: var(--spacing-2xl) 0;
    margin-top: 100px;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.hero-logo {
    width: 200px;
    height: auto;
    flex-shrink: 0;
    border-radius: var(--border-radius);
}

.hero-text {
    text-align: left;
}

.hero h1 {
    color: var(--color-text-inverse);
    margin: 0 0 var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 0 var(--spacing-xl);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero .btn-outline {
    color: var(--color-text-inverse);
    border-color: var(--color-text-inverse);
}

.hero .btn-outline:hover {
    background-color: var(--color-text-inverse);
    color: var(--color-primary);
}

/* ==========================================================================
   Services Section
   ========================================================================== */

.services {
    background-color: var(--color-bg-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background-color: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition), box-shadow var(--transition);
    position: relative;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-bg-alt);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

.service-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background-color: var(--color-accent);
    color: var(--color-text-inverse);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

/* ==========================================================================
   AI Automation Section (Featured)
   ========================================================================== */

.ai-section {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-text-inverse);
    padding: var(--spacing-2xl) 0;
}

.ai-content {
    max-width: 900px;
    margin: 0 auto;
}

.ai-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.ai-badge {
    display: inline-block;
    background-color: var(--color-accent);
    color: var(--color-text-inverse);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    margin-bottom: var(--spacing-md);
}

.ai-header h2 {
    color: var(--color-text-inverse);
    margin-bottom: var(--spacing-md);
}

.ai-lead {
    font-size: 1.25rem;
    opacity: 0.9;
    line-height: 1.7;
}

.ai-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.ai-feature {
    background-color: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

.ai-feature h3 {
    color: var(--color-text-inverse);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

.ai-feature p {
    opacity: 0.9;
    font-size: 0.95rem;
    margin: 0;
}

.ai-results {
    background-color: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.ai-results h3 {
    color: var(--color-text-inverse);
    margin-bottom: var(--spacing-lg);
}

.ai-metrics {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.ai-metric {
    text-align: center;
}

.ai-metric .metric-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent-light);
}

.ai-metric .metric-label {
    display: block;
    font-size: 0.875rem;
    opacity: 0.9;
    max-width: 150px;
}

.ai-approach {
    margin-bottom: var(--spacing-xl);
}

.ai-approach h3 {
    color: var(--color-text-inverse);
    margin-bottom: var(--spacing-sm);
}

.ai-approach p {
    opacity: 0.9;
    line-height: 1.7;
}

.ai-cta {
    text-align: center;
}

.ai-cta .btn {
    margin-bottom: var(--spacing-sm);
}

.ai-cta-note {
    font-size: 0.95rem;
    opacity: 0.8;
    margin: 0;
}

/* ==========================================================================
   About Section
   ========================================================================== */

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

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.bio-section {
    margin-bottom: var(--spacing-xl);
}

.bio-text h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-primary-dark);
}

.bio-text p {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.bio-text p:last-child {
    margin-bottom: 0;
}

.about .section-title {
    text-align: left;
}

.about-text {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.about-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact {
    background-color: var(--color-bg-alt);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--color-bg);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

.contact-form .btn {
    width: 100%;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    background-color: var(--color-primary-dark);
    color: var(--color-text-inverse);
    padding: var(--spacing-xl) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer p {
    margin: 0;
    opacity: 0.8;
}

.footer a {
    color: var(--color-text-inverse);
    opacity: 0.8;
}

.footer a:hover {
    opacity: 1;
    color: var(--color-text-inverse);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 100px;
        left: 0;
        right: 0;
        background-color: var(--color-primary-dark);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .hero {
        padding: var(--spacing-xl) 0;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-logo {
        width: 150px;
    }

    .hero-text {
        text-align: center;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .ai-features {
        grid-template-columns: 1fr;
    }

    .ai-metrics {
        flex-direction: column;
        align-items: center;
    }

    .ai-metric .metric-label {
        max-width: 250px;
    }

    .about-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
        align-items: center;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .contact-form {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    section {
        padding: var(--spacing-xl) 0;
    }

    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
}