/* ============================================
   KHIMORA - Botanical Skincare
   Design System & Styles
   ============================================ */

/* CSS Variables - Indigo Ink Palette */
:root {
    /* Primary Colors */
    --color-primary-dark: #1B0A3C;
    --color-primary: #3D1E7C;
    --color-primary-light: #7B68EE;
    --color-accent: #C9A87C;
    
    /* Neutral Colors */
    --color-bg: #F9F7F4;
    --color-bg-alt: #E8E0F0;
    --color-text: #1B0A3C;
    --color-text-light: #5B4A6E;
    --color-text-muted: #8B7A9E;
    --color-white: #FFFFFF;
    --color-cream: #F4ECD8;
    
    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Manrope', -apple-system, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(27, 10, 60, 0.08);
    --shadow-md: 0 4px 20px rgba(27, 10, 60, 0.12);
    --shadow-lg: 0 8px 40px rgba(27, 10, 60, 0.15);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 300;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
}

h4 {
    font-size: 1.125rem;
}

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

/* Section Labels */
.section-label {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.section-title {
    margin-bottom: var(--space-md);
}

.section-description {
    color: var(--color-text-light);
    max-width: 600px;
}

.centered {
    text-align: center;
}

.centered .section-description {
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    border: 1px solid var(--color-primary-dark);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary-dark);
    border: 1px solid var(--color-primary-dark);
}

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

.btn-small {
    padding: 0.625rem 1.25rem;
    font-size: 0.75rem;
}

/* Link Arrow */
.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary-dark);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.link-arrow span {
    transition: transform var(--transition-base);
}

.link-arrow:hover {
    border-bottom-color: var(--color-primary-dark);
}

.link-arrow:hover span {
    transform: translateX(4px);
}

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background-color: rgba(249, 247, 244, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: var(--space-sm) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--color-primary-dark);
    letter-spacing: 0.05em;
}

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

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-primary-dark);
    transition: width var(--transition-base);
}

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

.nav-cta {
    margin-left: var(--space-md);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary-dark);
    transition: all var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--space-xl);
    padding: calc(var(--space-3xl) + 60px) var(--space-lg) var(--space-2xl);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 600px;
    padding-left: calc((100vw - 1280px) / 2 + var(--space-lg));
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.hero-title {
    margin-bottom: var(--space-md);
    font-style: italic;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1;
}

.hero-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-cream) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-icon {
    width: 60%;
    height: 60%;
    color: var(--color-primary-light);
    opacity: 0.6;
}

.hero-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 150px;
    height: 150px;
    background-color: var(--color-accent);
    border-radius: 50%;
    opacity: 0.3;
    filter: blur(40px);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-text-muted), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* Reveal Animation */
.reveal-text {
    opacity: 0;
    transform: translateY(30px);
    animation: revealUp 0.8s ease forwards;
}

.reveal-text:nth-child(1) { animation-delay: 0.2s; }
.reveal-text:nth-child(2) { animation-delay: 0.4s; }
.reveal-text:nth-child(3) { animation-delay: 0.6s; }
.reveal-text:nth-child(4) { animation-delay: 0.8s; }

@keyframes revealUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */

.products {
    padding: var(--space-3xl) 0;
    background-color: var(--color-white);
}

.section-header {
    margin-bottom: var(--space-2xl);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.product-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-card.featured {
    grid-column: span 2;
    grid-row: span 2;
}

.product-image {
    position: relative;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-cream) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-card.featured .product-image {
    aspect-ratio: 1;
}

.product-placeholder {
    width: 50%;
    height: 50%;
    color: var(--color-primary-light);
    opacity: 0.5;
    transition: all var(--transition-base);
}

.product-card:hover .product-placeholder {
    opacity: 0.7;
    transform: scale(1.05);
}

.product-badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    padding: 0.375rem 0.75rem;
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-sm);
}

.product-info {
    padding: var(--space-md);
}

.product-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.product-description {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-price {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-primary-dark);
}

.section-footer {
    text-align: center;
    margin-top: var(--space-xl);
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-content {
    max-width: 600px;
}

.about-text {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(27, 10, 60, 0.1);
}

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

.value-number {
    display: block;
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-style: italic;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.value-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.value-desc {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.about-visual {
    position: relative;
}

.about-image-container {
    position: relative;
    aspect-ratio: 1;
}

.about-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-cream) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.about-icon {
    width: 50%;
    height: 50%;
    color: var(--color-primary-light);
    opacity: 0.5;
}

.about-accent-1 {
    position: absolute;
    top: -30px;
    right: -30px;
    width: 120px;
    height: 120px;
    background-color: var(--color-accent);
    border-radius: 50%;
    opacity: 0.2;
    filter: blur(30px);
}

.about-accent-2 {
    position: absolute;
    bottom: -20px;
    left: -20px;
    width: 100px;
    height: 100px;
    background-color: var(--color-primary-light);
    border-radius: 50%;
    opacity: 0.15;
    filter: blur(25px);
}

/* ============================================
   INGREDIENTS SECTION
   ============================================ */

.ingredients {
    padding: var(--space-3xl) 0;
    background-color: var(--color-white);
}

.ingredients-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-2xl);
}

.ingredient-card {
    text-align: center;
    padding: var(--space-lg) var(--space-sm);
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.ingredient-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.ingredient-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-sm);
    color: var(--color-primary-light);
}

.ingredient-name {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.ingredient-origin {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.ingredient-desc {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* ============================================
   TESTIMONIALS
   ============================================ */

.testimonials {
    padding: var(--space-3xl) 0;
    background-color: var(--color-primary-dark);
    color: var(--color-white);
}

.testimonial-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonial-track {
    display: flex;
    transition: transform var(--transition-slow);
}

.testimonial {
    flex: 0 0 100%;
    padding: 0 var(--space-lg);
    text-align: center;
}

.testimonial-text {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 300;
    font-style: italic;
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    opacity: 0.95;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.testimonial-author cite {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    font-style: normal;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.testimonial-author span {
    font-size: 0.75rem;
    opacity: 0.6;
}

.testimonial-nav {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.testimonial-btn {
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: var(--color-white);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

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

/* ============================================
   NEWSLETTER
   ============================================ */

.newsletter {
    padding: var(--space-3xl) 0;
    background-color: var(--color-cream);
}

.newsletter-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.newsletter-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--space-sm);
}

.newsletter-text {
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
}

.newsletter-form {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.newsletter-input {
    flex: 1;
    padding: 1rem 1.25rem;
    border: 1px solid rgba(27, 10, 60, 0.2);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    background-color: var(--color-white);
    transition: border-color var(--transition-base);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--color-primary-dark);
}

.newsletter-input::placeholder {
    color: var(--color-text-muted);
}

.newsletter-note {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    padding: var(--space-3xl) 0 var(--space-lg);
    background-color: var(--color-primary-dark);
    color: var(--color-white);
}

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

.footer-logo {
    font-family: var(--font-display);
    font-size: 2rem;
    display: block;
    margin-bottom: var(--space-sm);
}

.footer-tagline {
    font-size: 0.9375rem;
    opacity: 0.7;
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.footer-social a {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background-color: var(--color-white);
    color: var(--color-primary-dark);
    border-color: var(--color-white);
}

.footer-links h4 {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

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

.footer-links a {
    font-size: 0.9375rem;
    opacity: 0.7;
    transition: opacity var(--transition-base);
}

.footer-links a:hover {
    opacity: 1;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 0.875rem;
    opacity: 0.6;
    margin: 0;
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    font-size: 0.875rem;
    opacity: 0.6;
    transition: opacity var(--transition-base);
}

.footer-legal a:hover {
    opacity: 1;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: calc(var(--space-2xl) + 80px);
    }
    
    .hero-content {
        padding-left: var(--space-lg);
        margin: 0 auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-card.featured {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .ingredients-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .about-visual {
        order: -1;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        gap: var(--space-lg);
        transform: translateX(100%);
        transition: transform var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
    
    .nav-cta {
        display: none;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-card.featured {
        grid-column: span 1;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .ingredients-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xl);
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .ingredients-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

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

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--color-primary-light);
    outline-offset: 2px;
}

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

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