/* ============================================
   HighPantry Website Styles
   ============================================ */

/* CSS Variables - HighPantry Brand Colors */
:root {
    --color-green: #4E944F;
    --color-tan: #F6F5F0;
    --color-cream: #F5F5EC;
    --color-card-tan: #E8E5D7;
    --color-card-light: #EFEDE2;
    --color-white: #FFFFFF;
    --color-text-dark: #2C2C2C;
    --color-text-medium: #5C5C5C;
    --color-text-light: #8C8C8C;
    
    --font-serif: 'Merriweather', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    
    --shadow-sm: 0 1px 3px rgba(78, 148, 79, 0.08);
    --shadow-md: 0 4px 6px rgba(78, 148, 79, 0.1);
    --shadow-lg: 0 10px 20px rgba(78, 148, 79, 0.12);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --container-max: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-cream);
    color: var(--color-text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

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

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation */
.navbar {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
}

.nav-brand {
    grid-column: 2;
    justify-self: center;
}

.nav-brand .logo {
    height: 64px;
    width: auto;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-green);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
    grid-column: 3;
    justify-self: end;
}

.nav-menu a {
    color: var(--color-text-dark);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    white-space: nowrap;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-green);
    transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-tan) 100%);
    padding: var(--spacing-xl) 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-logo {
    max-width: 400px;
    width: 100%;
    height: auto;
    margin: 0 auto var(--spacing-lg);
    filter: drop-shadow(0 4px 8px rgba(78, 148, 79, 0.15));
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    font-weight: 900;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-medium);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.hero-tagline {
    font-size: 1.5rem;
    color: var(--color-green);
    font-weight: 600;
    margin-top: var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-green);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: #3d7a3e;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-app {
    background-color: var(--color-text-dark);
    color: var(--color-white);
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.btn-app:hover {
    background-color: var(--color-green);
    transform: translateY(-2px);
}

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

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

.section-highlight {
    background-color: var(--color-card-light);
    border-top: 4px solid var(--color-green);
    border-bottom: 4px solid var(--color-green);
}

.section-cta {
    background: linear-gradient(135deg, var(--color-green) 0%, #3d7a3e 100%);
    color: var(--color-white);
    text-align: center;
}

.section-cta h2,
.section-cta .lead {
    color: var(--color-white);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-intro {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-text-medium);
    margin-bottom: var(--spacing-md);
}

.section-note {
    text-align: center;
    color: var(--color-text-medium);
    margin-top: var(--spacing-md);
    font-style: italic;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

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

.feature-card p {
    color: var(--color-text-medium);
    line-height: 1.6;
}

/* Steps */
.steps {
    max-width: 900px;
    margin: var(--spacing-lg) auto 0;
}

.step {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background-color: var(--color-green);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-serif);
}

.step-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    color: var(--color-text-medium);
    line-height: 1.7;
}

/* Calculator Showcase */
.calculator-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.calc-card {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-green);
    box-shadow: var(--shadow-sm);
}

.calc-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.calc-card p {
    color: var(--color-text-medium);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.calc-note {
    color: var(--color-text-light);
    font-style: italic;
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
}

/* Recipes Grid */
.recipes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.recipe-card {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform 0.3s ease;
}

.recipe-card:hover {
    transform: scale(1.02);
}

.recipe-emoji {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
}

.recipe-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.recipe-card p {
    color: var(--color-text-medium);
    line-height: 1.6;
}

/* Pantry Features */
.pantry-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.pantry-item {
    background-color: var(--color-card-tan);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.pantry-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pantry-item p {
    color: var(--color-text-medium);
    line-height: 1.6;
}

/* Safety Content */
.safety-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.safety-principle {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-top: 3px solid var(--color-green);
    box-shadow: var(--shadow-sm);
}

.safety-principle h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.safety-principle p {
    color: var(--color-text-medium);
    line-height: 1.7;
}

.disclaimer {
    background-color: #FFF9E6;
    border: 2px solid #E6C84D;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-lg);
    text-align: center;
}

.disclaimer p {
    color: var(--color-text-dark);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* FAQ */
.faq-list {
    max-width: 900px;
    margin: var(--spacing-lg) auto 0;
}

.faq-item {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-md);
}

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

.faq-item p {
    color: var(--color-text-medium);
    line-height: 1.7;
}

/* About */
.about-content {
    max-width: 800px;
    margin: var(--spacing-lg) auto 0;
    text-align: center;
}

.about-content p {
    color: var(--color-text-medium);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

/* App Buttons */
.app-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.app-note {
    text-align: center;
    margin-top: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.8);
    font-style: italic;
}

/* Footer */
.footer {
    background-color: var(--color-text-dark);
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

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

.footer-brand .footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: var(--spacing-sm);
    filter: brightness(0) invert(1);
}

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

.footer-links h4 {
    color: var(--color-white);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--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, 0.7);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.footer-disclaimer {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar .container {
        justify-content: space-between;
    }

    .nav-brand {
        position: static;
        left: auto;
        transform: none;
    }

    .nav-brand .logo {
        height: 44px;
    }

    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        display: none;
        gap: 0;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
        text-align: center;
        border-bottom: 1px solid var(--color-cream);
    }
    
    .nav-menu a {
        display: block;
        padding: var(--spacing-sm);
    }
    
    .hero-logo {
        max-width: 300px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid,
    .calculator-showcase,
    .recipes-grid,
    .pantry-features,
    .safety-content {
        grid-template-columns: 1fr;
    }
    
    .step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .nav-brand .logo {
        height: 40px;
    }

    :root {
        --spacing-xl: 2.5rem;
        --spacing-lg: 2rem;
    }
    
    .hero-logo {
        max-width: 250px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero {
        min-height: 60vh;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
}

/* Accessibility */
.btn:focus,
.nav-menu a:focus {
    outline: 3px solid var(--color-green);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}