/* ===================================
   SƯƠNG YA-UA - Premium Rustic-Vintage Style
   OPTIMIZED LAYOUT v2.0
   Đà Lạt Handcrafted Cheese Yogurt
   =================================== */

/* ===== CSS Variables - Optimized Spacing ===== */
:root {
    /* Primary Colors */
    --color-primary: #8B7355;
    --color-secondary: #E8DCC4;
    --color-accent: #A67C52;
    --color-dark: #3E2723;
    --color-fog: #F5F2ED;
    
    /* Neutral Tones */
    --color-text: #4A4A4A;
    --color-text-light: #757575;
    --color-white: #FFFFFF;
    --color-black: #1A1A1A;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #8B7355 0%, #A67C52 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(62, 39, 35, 0.85), rgba(139, 115, 85, 0.85));
    
    /* Typography - Refined Vintage System (v1.3.1) */
    --font-display: 'Playfair Display', serif;      /* Logo & Major Titles Only */
    --font-heading: 'Cormorant Garamond', serif;    /* All Headings */
    --font-body: 'Lora', serif;                     /* Body Text - More Readable */
    --font-accent: 'Cormorant Garamond', serif;     /* Special Elements */
    
    /* Optimized Spacing System */
    --spacing-xs: 0.5rem;      /* 8px */
    --spacing-sm: 1rem;        /* 16px */
    --spacing-md: 1.5rem;      /* 24px */
    --spacing-lg: 3rem;        /* 48px */
    --spacing-xl: 5rem;        /* 80px */
    --spacing-section: 4rem;   /* 64px - consistent section padding */
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows - Subtle & Refined */
    --shadow-sm: 0 2px 8px rgba(62, 39, 35, 0.08);
    --shadow-md: 0 4px 16px rgba(62, 39, 35, 0.12);
    --shadow-lg: 0 8px 24px rgba(62, 39, 35, 0.16);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Max Widths */
    --max-width-content: 1200px;
    --max-width-text: 800px;
    --max-width-narrow: 600px;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: 1.7;
    background-color: var(--color-fog);
    overflow-x: hidden;
    font-size: 16px;
    font-weight: 400;
}

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

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

ul {
    list-style: none;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-dark);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 600;
    font-style: italic;
}

h2 {
    font-size: clamp(1.875rem, 4vw, 3rem);
    font-weight: 600;
}

h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    font-size: 1rem;
    line-height: 1.7;
}

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

/* ===== Section Styling ===== */
section {
    padding: var(--spacing-section) 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: var(--max-width-text);
    margin: 0 auto var(--spacing-lg);
}

.section-label {
    display: inline-block;
    font-family: var(--font-accent);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.section-label.light {
    color: var(--color-secondary);
}

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

.section-title.light {
    color: var(--color-white);
}

.section-description {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

.divider {
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    margin: var(--spacing-md) auto;
}

.divider.light {
    background: var(--color-secondary);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--spacing-md);
    max-height: 80px;
}

.nav-brand {
    text-align: left;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
    letter-spacing: 2px;
    margin-bottom: 0;
    line-height: 1;
}

.logo-subtitle {
    font-family: var(--font-accent);
    font-size: 0.75rem;
    color: var(--color-primary);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin: 0.25rem 0 0 0;
    font-style: italic;
}

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

.nav-link {
    font-family: var(--font-accent);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
    letter-spacing: 0.5px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

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

/* ===== Hero Section ===== */
.hero {
    height: 100vh;
    min-height: 650px;
    max-height: 900px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-image: url('../images/hero-dalat-background.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(139, 115, 85, 0.02) 2px, rgba(139, 115, 85, 0.02) 4px);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(245, 242, 237, 0.88) 0%, rgba(232, 220, 196, 0.85) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 var(--spacing-md);
}

.hero-label {
    font-family: var(--font-accent);
    font-size: 0.9375rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.75rem, 6vw, 5rem);
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1.15;
    margin-bottom: var(--spacing-md);
    letter-spacing: -1px;
}

.hero-description {
    font-family: var(--font-body);
    font-size: clamp(1.0625rem, 2vw, 1.25rem);
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    line-height: 1.75;
    font-style: italic;
}

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

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-family: var(--font-accent);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

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

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

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

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator span {
    display: block;
    width: 2px;
    height: 40px;
    background: var(--color-primary);
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% {
        transform: translateY(0);
        opacity: 0.3;
    }
    50% {
        transform: translateY(10px);
        opacity: 1;
    }
}

/* ===== Founder Intro Section ===== */
.founder-intro {
    background: var(--color-white);
    padding: var(--spacing-section) 0;
    border-bottom: 1px solid rgba(139, 115, 85, 0.1);
}

.founder-content {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: var(--spacing-lg);
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.founder-image {
    position: relative;
}

.founder-image img {
    width: 100%;
    height: auto;
    aspect-ratio: 3/4;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.founder-text {
    padding-left: var(--spacing-md);
}

.founder-title {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 2.5vw, 2.25rem);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
    font-style: italic;
    font-weight: 500;
}

.founder-description {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--color-text);
    margin: 0;
}

/* ===== Essence Section ===== */
.essence {
    background: var(--color-fog);
    padding: var(--spacing-lg) 0;
}

.essence-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    max-width: 850px;
    margin: 0 auto;
}

.essence-item {
    text-align: center;
    padding: var(--spacing-md) var(--spacing-sm);
    background: var(--color-white);
    border-radius: var(--radius-md);
    transition: var(--transition);
    border: 1px solid rgba(139, 115, 85, 0.08);
    min-height: 160px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.essence-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
    border-color: var(--color-primary);
}

.essence-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-sm);
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.375rem;
    color: var(--color-white);
}

.essence-item h3 {
    font-size: 1.1875rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
    font-weight: 600;
}

.essence-item p {
    color: var(--color-text-light);
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.6;
}

/* ===== Core Value Section ===== */
.core-value {
    background: var(--color-white);
    padding: var(--spacing-section) 0;
}

.value-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.value-text {
    padding-right: var(--spacing-md);
}

.value-description {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.75;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.value-points {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.value-point {
    padding: var(--spacing-md);
    background: var(--color-fog);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-primary);
}

.value-point h4 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
    font-weight: 600;
}

.value-point p {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-light);
    margin: 0;
    line-height: 1.8;
}

.value-image {
    position: relative;
}

.image-frame {
    position: relative;
    padding: var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.image-frame img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    display: block;
    object-fit: cover;
}

/* ===== Product Section ===== */
.product {
    background: var(--color-fog);
    padding: var(--spacing-section) 0;
}

.product-showcase {
    max-width: 900px;
    margin: var(--spacing-lg) auto;
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.product-image {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--color-secondary);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    box-shadow: var(--shadow-sm);
}

.product-info {
    padding: var(--spacing-lg);
}

.product-name {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-dark);
}

.product-desc {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    line-height: 1.75;
}

.product-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.product-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9375rem;
    color: var(--color-text);
}

.product-features i {
    color: var(--color-primary);
    font-size: 0.875rem;
}

.product-qualities {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.quality-item {
    padding: var(--spacing-lg) var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--radius-md);
    transition: var(--transition);
    min-height: 220px;
}

.quality-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.quality-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.25;
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.quality-item h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.quality-item p {
    color: var(--color-text-light);
    margin: 0;
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ===== Mission Section ===== */
.mission {
    position: relative;
    background: var(--color-dark);
    background-image: url('../images/mission-background.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: var(--spacing-xl) 0;
    text-align: center;
    overflow: hidden;
}

.mission::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255, 255, 255, 0.02) 2px, rgba(255, 255, 255, 0.02) 4px);
    pointer-events: none;
}

.mission-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(62, 39, 35, 0.92), rgba(62, 39, 35, 0.88));
}

.mission-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.mission-text {
    font-family: var(--font-body);
    font-size: 1.25rem;
    color: var(--color-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.mission-quote {
    font-family: var(--font-body);
    font-size: 1.125rem;
    font-style: italic;
    color: var(--color-white);
    padding: var(--spacing-md);
    border-left: 3px solid var(--color-primary);
    margin: var(--spacing-lg) 0;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    line-height: 1.75;
}

.mission-signature {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    color: var(--color-secondary);
    margin-top: var(--spacing-md);
}

/* ===== Story Section ===== */
.story {
    background: var(--color-white);
    padding: var(--spacing-section) 0;
}

.story-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.story-text {
    padding-left: var(--spacing-md);
}

.story-text p {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.75;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.story-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-fog);
    border-radius: var(--radius-md);
    font-size: 1.0625rem;
    font-weight: 500;
    color: var(--color-dark);
}

.highlight-icon {
    font-size: 1.75rem;
    flex-shrink: 0;
}

/* ===== Contact Section ===== */
.contact {
    background: var(--color-fog);
    padding: var(--spacing-section) 0;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.contact-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    cursor: pointer;
    min-height: 240px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    background: var(--gradient-primary);
}

.contact-card:hover .contact-icon {
    background: var(--color-white);
    color: var(--color-primary);
}

.contact-card:hover h3,
.contact-card:hover p {
    color: var(--color-white);
}

.contact-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-md);
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--color-white);
    transition: var(--transition);
}

.contact-card h3 {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-xs);
}

.contact-card p {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    margin: 0;
}

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

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

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 2px;
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    font-family: var(--font-accent);
    font-size: 0.875rem;
    color: var(--color-secondary);
    margin: 0;
    font-style: italic;
}

.footer-info {
    text-align: right;
}

.footer-info p {
    font-size: 0.875rem;
    color: var(--color-secondary);
    margin-bottom: 0.25rem;
}

.footer-info a {
    color: var(--color-primary);
    text-decoration: underline;
}

.footer-info a:hover {
    color: var(--color-secondary);
}

/* ===== Floating Action Buttons ===== */
.floating-buttons {
    position: fixed;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 999;
}

.fab-button {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.375rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    cursor: pointer;
}

.fab-button:hover {
    transform: scale(1.1);
}

.fab-phone {
    background: linear-gradient(135deg, #25D366, #128C7E);
}

.fab-facebook {
    background: linear-gradient(135deg, #1877F2, #0C63D4);
}

.fab-zalo {
    background: linear-gradient(135deg, #0068FF, #0052CC);
}

.fab-button:active {
    transform: scale(0.95);
}

/* ===== Scroll to Top ===== */
.scroll-top {
    position: fixed;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    font-size: 1.125rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-3px);
}

/* ===== Animations ===== */
[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

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

/* Tablet & Small Desktop */
@media (max-width: 968px) {
    :root {
        --spacing-lg: 2.5rem;
        --spacing-xl: 4rem;
        --spacing-section: 3rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 80px);
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-lg) var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
        align-items: flex-start;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .founder-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .founder-text {
        padding-left: 0;
        text-align: center;
    }
    
    .value-content,
    .story-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .value-text,
    .story-text {
        padding: 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .product-features {
        grid-template-columns: 1fr;
    }
    
    .product-qualities {
        grid-template-columns: 1fr;
    }
    
    .contact-methods {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 640px) {
    :root {
        --spacing-md: 1.25rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
        --spacing-section: 2.5rem;
    }
    
    section {
        padding: var(--spacing-section) 0;
    }
    
    .hero {
        min-height: 600px;
        max-height: 700px;
    }
    
    .essence-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .essence-item {
        padding: var(--spacing-md);
        min-height: 140px;
    }
    
    .essence-icon {
        width: 42px;
        height: 42px;
        font-size: 1.25rem;
    }
    
    .essence-item h3 {
        font-size: 1.125rem;
    }
    
    .essence-item p {
        font-size: 0.8125rem;
    }
    
    .quality-item {
        min-height: auto;
        padding: var(--spacing-md);
    }
    
    .contact-card {
        min-height: 200px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-info {
        text-align: center;
    }
    
    .floating-buttons {
        right: var(--spacing-sm);
        bottom: var(--spacing-sm);
    }
    
    .fab-button {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .scroll-top {
        left: var(--spacing-sm);
        bottom: var(--spacing-sm);
        width: 44px;
        height: 44px;
        font-size: 1rem;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .floating-buttons,
    .scroll-top,
    .nav-toggle {
        display: none !important;
    }
}