/* ===== CSS Variables ===== */
:root {
    /* Colors - Professional Blue & Orange */
    --color-primary: #3b5998;
    --color-primary-hover: #2d4373;
    --color-accent: #e67e22;
    --color-accent-hover: #d35400;
    
    --color-background: #fcfcfc;
    --color-foreground: #1a1a1a;
    --color-muted: #f5f5f5;
    --color-muted-foreground: #666666;
    --color-border: #e0e0e0;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius: 0.5rem;
    --radius-lg: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* ===== Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-foreground);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* ===== Layout Utilities ===== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
}

@media (min-width: 640px) {
    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
}

@media (min-width: 1024px) {
    .container {
        padding-left: var(--spacing-lg);
        padding-right: var(--spacing-lg);
    }
}

.content-narrow {
    max-width: 48rem;
    margin: 0 auto;
}

.content-medium {
    max-width: 64rem;
    margin: 0 auto;
}

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

.text-large {
    font-size: 1.125rem;
    line-height: 1.75;
    color: var(--color-muted-foreground);
}

@media (min-width: 768px) {
    .text-large {
        font-size: 1.25rem;
    }
}

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 50;
    width: 100%;
    border-bottom: 1px solid var(--color-border);
    background-color: rgba(252, 252, 252, 0.95);
    backdrop-filter: blur(10px);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    color: var(--color-primary);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-foreground);
}

.nav-links {
    display: none;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-foreground);
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--color-primary);
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
}

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

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    padding: 5rem 0 8rem;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-muted) 50%, var(--color-background) 100%);
}

@media (min-width: 768px) {
    .hero {
        padding: 8rem 0 10rem;
    }
}

.hero-bg-blur {
    position: absolute;
    width: 24rem;
    height: 24rem;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 0;
    opacity: 0.3;
}

.hero-bg-blur-1 {
    top: 0;
    right: 0;
    background-color: rgba(59, 89, 152, 0.15);
}

.hero-bg-blur-2 {
    bottom: 0;
    left: 0;
    background-color: rgba(230, 126, 34, 0.15);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 64rem;
    margin: 0 auto;
    text-align: center;
}

.hero-title {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 2.5rem;
    line-height: 1.2;
    color: var(--color-foreground);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.5rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 4rem;
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.75;
    color: var(--color-muted-foreground);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.5rem;
    }
}

/* ===== Sections ===== */
.section {
    padding: 5rem 0;
}

.section-card {
    background-color: white;
}

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

.section-contact {
    background-color: rgba(59, 89, 152, 0.05);
}

.section-title {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 2rem;
    line-height: 1.3;
    color: var(--color-foreground);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }
}

/* ===== Highlight Box ===== */
.highlight-box {
    background-color: rgba(59, 89, 152, 0.05);
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-md);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin-top: var(--spacing-lg);
}

.highlight-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-foreground);
    margin-bottom: var(--spacing-sm);
}

/* ===== Grid ===== */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

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

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

/* ===== Cards ===== */
.card {
    background-color: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    transition: border-color 0.2s ease;
}

.card:hover {
    border-color: var(--color-primary);
}

.card-icon-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.card-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon-primary {
    background-color: rgba(59, 89, 152, 0.1);
    color: var(--color-primary);
}

.card-icon-accent {
    background-color: rgba(230, 126, 34, 0.1);
    color: var(--color-accent);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-foreground);
}

.card-text {
    color: var(--color-muted-foreground);
    line-height: 1.75;
}

/* ===== Benefits ===== */
.benefit-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    background-color: white;
    padding: var(--spacing-md);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
}

.benefit-icon {
    flex-shrink: 0;
    color: var(--color-primary);
    margin-top: 0.25rem;
}

.benefit-icon-accent {
    color: var(--color-accent);
}

.benefit-content {
    flex: 1;
}

.benefit-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-foreground);
}

.benefit-text {
    color: var(--color-muted-foreground);
    line-height: 1.75;
    margin-bottom: 0;
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

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

.contact-card {
    background-color: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    text-align: center;
}

.contact-icon-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.contact-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon-primary {
    background-color: rgba(59, 89, 152, 0.1);
    color: var(--color-primary);
}

.contact-icon-accent {
    background-color: rgba(230, 126, 34, 0.1);
    color: var(--color-accent);
}

.contact-title {
    font-weight: 700;
    color: var(--color-foreground);
    margin-bottom: 0.5rem;
}

.contact-link {
    color: var(--color-primary);
    word-break: break-all;
}

.contact-link:hover {
    text-decoration: underline;
}

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--color-border);
    background-color: white;
    padding: var(--spacing-xl) 0;
}

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

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--color-muted-foreground);
}

.footer-heading {
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-foreground);
}

.footer-address {
    font-size: 0.875rem;
    color: var(--color-muted-foreground);
}

.footer-address p {
    margin-bottom: 0.25rem;
}

.footer-link {
    color: var(--color-primary);
}

.footer-link:hover {
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-muted-foreground);
}

.footer-bottom p {
    margin-bottom: 0;
}