/* ===========================
   ChefsFridge Co. Stylesheet
   Unified Design System - Red Theme
   =========================== */

:root {
    /* ChefsFridge Brand Colors - Warm Red Theme */
    --color-primary: #C83C3C;
    --color-primary-dark: #9A2A2A;
    --color-primary-light: #E85050;
    --color-accent: #FF8C42;
    --color-secondary: #F4A261;

    /* Brand Colors for Product Lines */
    --color-arcticrx: #0066cc;
    --color-cryovase: #6A4C93;

    /* Neutral Colors (Shared Across All Brands) */
    --color-dark: #1a1a2e;
    --color-dark-light: #2a2a3e;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-lighter: #757575;
    --color-bg: #ffffff;
    --color-bg-gray: #f8f9fa;
    --color-bg-light-red: #fef5f5;
    --color-bg-dark: #16213e;
    --color-border: #e0e0e0;
    --color-success: #00d4aa;
    --color-error: #ff4757;

    /* Spacing System (Shared) */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;

    /* Design Tokens (Shared) */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --transition: all 0.3s ease;

    /* Typography (Shared) */
    --font-primary: 'Ocean Sans MT', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    --font-heading: 'Ocean Sans MT', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Shadows (Shared) */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* ===========================
   Reset & Base Styles
   =========================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.7;
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-size: 1rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-dark);
    letter-spacing: -0.5px;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    letter-spacing: -1px;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
}

p {
    line-height: 1.8;
    margin-bottom: 1rem;
}

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

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.lead {
    font-size: 1.25rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-intro {
    font-size: 1.125rem;
    color: var(--color-text-light);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

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

.navbar {
    background: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.nav-brand .logo {
    height: 50px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
}

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

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

@media (max-width: 768px) {
    .nav-links {
        gap: var(--spacing-sm);
        font-size: 0.9rem;
    }
}

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

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-arcticrx:hover {
    background: #0052a3;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-cryovase:hover {
    background: #543a73;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.hero h1 {
    color: white;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    margin-top: var(--spacing-lg);
}

.hero-cta .btn {
    background: white;
    color: var(--color-primary);
    font-size: 1.125rem;
}

.hero-cta .btn:hover {
    background: var(--color-bg-gray);
    transform: translateY(-3px);
}

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

.about-section {
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat-card {
    padding: var(--spacing-lg);
    background: var(--color-bg-light-red);
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1rem;
    color: var(--color-text-light);
    font-weight: 500;
}

/* ===========================
   Value Props Section
   =========================== */

.value-props {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.value-card {
    text-align: center;
    padding: var(--spacing-lg);
}

.value-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.value-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

/* ===========================
   How It Works Section
   =========================== */

.how-it-works-section {
    padding: var(--spacing-xxl) 0;
    background: var(--color-bg-gray);
}

.how-it-works-section h2 {
    text-align: center;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.step-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    text-align: center;
}

.step-number {
    position: absolute;
    top: -15px;
    left: 20px;
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.25rem;
}

.step-icon {
    font-size: 4rem;
    margin: var(--spacing-md) 0;
}

.step-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

/* ===========================
   Innovation/Spinoff Section
   =========================== */

.innovation-section {
    padding: var(--spacing-xxl) 0;
    background: var(--color-bg-gray);
}

.innovation-section h2 {
    text-align: center;
}

.spinoff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.spinoff-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
}

.spinoff-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.spinoff-badge {
    display: inline-block;
    background: var(--color-accent);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.spinoff-card h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.spinoff-arcticrx h3 {
    color: var(--color-arcticrx);
}

.spinoff-cryovase h3 {
    color: var(--color-cryovase);
}

.spinoff-tagline {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-lighter);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.spinoff-card .btn {
    margin-top: var(--spacing-md);
    width: 100%;
}

.innovation-callout {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border-radius: var(--border-radius-lg);
    text-align: center;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.innovation-callout h3 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.innovation-callout p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin: 0;
}

/* ===========================
   Impact Section
   =========================== */

.impact-section {
    padding: var(--spacing-xxl) 0;
}

.impact-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

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

.impact-card {
    background: var(--color-bg-light-red);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--color-primary);
}

.impact-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.impact-card ul {
    list-style: none;
    padding: 0;
}

.impact-card li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.impact-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* ===========================
   Technology Section
   =========================== */

.technology-section {
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.tech-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.tech-feature {
    padding: var(--spacing-lg);
}

.tech-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.tech-feature h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.tech-feature p {
    color: var(--color-text-light);
    line-height: 1.7;
}

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

.contact-section {
    padding: var(--spacing-xxl) 0;
    background: var(--color-bg-gray);
    text-align: center;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) auto;
    max-width: 900px;
}

.contact-item {
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.contact-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.contact-item a {
    color: var(--color-text);
    text-decoration: underline;
}

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

.location {
    margin-top: var(--spacing-lg);
    color: var(--color-text-light);
}

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

.footer {
    background: var(--color-dark);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    height: 50px;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.footer-column h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-column a:hover {
    color: white;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

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

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-xl) 0;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .contact-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}