/* 
 * Slow Wellness Lab - Premium Stylesheet
 * 2025 Mobile-First Responsive Design
 */

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

:root {
    /* Main color palette - refined and premium */
    --primary-color: #3B6E4A;     /* Deeper green - more sophisticated */
    --secondary-color: #D6A86E;   /* Rich gold/tan - premium feeling */
    --accent-color: #E15C41;      /* Refined terracotta - for accents */
    --dark-color: #1D2326;        /* Rich dark blue-black - for text */
    --light-color: #F7F7F5;       /* Warm off-white - for backgrounds */
    --muted-color: #7B8C98;       /* Sophisticated blue-gray - for secondary text */
    
    /* Typography */
    --heading-font: 'Montserrat', 'Noto Sans KR', sans-serif;
    --body-font: 'Noto Sans KR', 'Open Sans', sans-serif;
    
    /* Other */
    --border-radius: 4px;         /* More subtle radius */
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1); /* Premium easing */
}

/* 🚀 강력한 스크롤 스냅 완전 비활성화 */
html {
    scroll-behavior: smooth;
    scroll-snap-type: none !important;
    height: auto !important;
    overflow-y: auto;
    overflow-x: hidden;
}

/* 모든 요소에서 스크롤 스냅 강제 비활성화 */
*, *::before, *::after {
    scroll-snap-type: none !important;
    scroll-snap-align: none !important;
    scroll-snap-stop: normal !important;
}

/* 모바일에서 더 강력한 스크롤 제어 */
@media (max-width: 768px) {
    html, body {
        scroll-snap-type: none !important;
        scroll-behavior: auto !important;
        height: auto !important;
        min-height: auto !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch;
    }
    
    section {
        scroll-snap-align: none !important;
        scroll-snap-stop: normal !important;
        height: auto !important;
        min-height: auto !important;
        overflow: visible !important;
    }
}

body {
    font-family: var(--body-font);
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    overflow-x: hidden;
    min-height: 100%;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

p {
    margin-bottom: 1.5rem;
    font-weight: 400;
    letter-spacing: 0.01em;
}

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

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

/* Subtle underline animation for links */
a:not(.button):after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: var(--accent-color);
    transition: var(--transition);
}

a:not(.button):hover:after {
    width: 100%;
}

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

ul {
    list-style-type: none;
}

.container {
    width: 90%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

/* 📱 반응형 콘텐츠 표시/숨김 */
.desktop-content {
    display: block;
}

.mobile-content {
    display: none;
}

@media (max-width: 768px) {
    .desktop-content {
        display: none;
    }
    
    .mobile-content {
        display: block;
    }
}

/* Section Base Styles - 모던하고 유연한 레이아웃 */
section {
    height: auto;
    min-height: auto;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    scroll-snap-align: none !important;
    scroll-snap-stop: normal !important;
    overflow: visible;
    padding: 100px 0;
}

/* Hero는 전체 화면 유지 */
.hero {
    min-height: 100vh;
    padding: 0;
}

/* 다른 섹션들은 내용 기반 자동 높이 */
.about-section,
.products-section,
.features-section {
    min-height: auto;
    padding: 120px 0;
}

/* Section content wrapper */
.section-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 60px 0;
}

/* Section background styles */
.section-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* Hero Section */
.hero {
    text-align: center;
    color: white;
}

.hero .section-bg {
    background-color: #8B6E4F;
    background-image: url('../images/granola-bg.jpg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}

/* Semi-transparent overlay for better text visibility */
.section-bg:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.3));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fadeIn 1.2s ease forwards;
}

.main-title {
    font-size: 5.5rem;
    margin-bottom: 1.5rem;
    font-weight: 200;
    letter-spacing: -0.03em;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    line-height: 1.1;
}

.tagline {
    font-size: 1.8rem;
    margin-bottom: 2.5rem;
    font-weight: 300;
    letter-spacing: 0.02em;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}

.brand-name {
    font-size: 3.8rem;
    font-weight: 500;
    margin-bottom: 6rem;
    color: var(--secondary-color);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.01em;
}

.scroll-indicator {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 10;
    animation: fadeIn 1.5s ease forwards;
}

.scroll-indicator span {
    margin-bottom: 15px;
    font-size: 1.1rem;
    font-weight: 300;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

/* More modern arrow design */
.arrow {
    width: 40px;
    height: 40px;
    border-right: 2px solid white;
    border-bottom: 2px solid white;
    transform: rotate(45deg);
    animation: arrowBounce 2.5s infinite;
    opacity: 0.9;
}

/* About Section */
.about-section {
    text-align: center;
}

.about-section .section-bg {
    background-color: var(--light-color);
    background-image: url('../images/granola-bg-light.jpg');
    background-size: cover;
    background-position: center center;
    opacity: 0.2;
}

/* Semi-transparent content panel for better text visibility */
.about-section .section-content {
    background-color: rgba(255, 255, 255, 0.85);
    border-radius: 8px;
    padding: 60px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    max-width: 1000px;
    margin: 0 auto;
}

.about-section h2 {
    color: var(--primary-color);
    font-size: 3rem;
    margin-bottom: 2.5rem;
    position: relative;
    display: inline-block;
    font-weight: 400;
}

.about-section h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background-color: var(--secondary-color);
}

.about-section p {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-size: 1.2rem;
    color: var(--dark-color);
    line-height: 1.8;
}

/* 🎨 모바일 About 섹션 - 미니멀 디자인 */
.mobile-content {
    text-align: center;
    background: none;
    padding: 40px 20px;
}

.mobile-content h2 {
    font-size: 2.2rem;
    color: var(--primary-color);
    font-weight: 400;
    line-height: 1.4;
    margin-bottom: 2rem;
    text-align: center;
}

.mobile-image-container {
    margin: 2rem 0;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
}

.mobile-hero-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.mobile-tagline {
    font-size: 1.3rem;
    color: var(--muted-color);
    font-weight: 300;
    margin-top: 1.5rem;
    margin-bottom: 0;
    letter-spacing: 0.02em;
}

/* Products Section */
.products-section {
    position: relative;
    overflow: hidden;
}

.products-section .section-bg {
    background-color: #f2f0eb;
    background-image: url('../images/granola-bg-dark.jpg');
    background-size: cover;
    background-position: center center;
    opacity: 0.15;
}

.products-section .section-content {
    background-color: rgba(245, 244, 240, 0.9);
    border-radius: 8px;
    padding: 60px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    max-width: 1200px;
    margin: 0 auto;
}

.products-section h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: 3rem;
    margin-bottom: 3.5rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
    font-weight: 400;
}

.products-section h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background-color: var(--secondary-color);
}

/* 🎨 모던 제품 레이아웃 - 반응형 그리드 */
.products-circle-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 60px;
    padding: 40px 0;
    margin-top: 40px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.product-circle {
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.product-circle a {
    display: block;
    color: var(--dark-color);
    text-decoration: none;
}

.circle-image-container {
    width: 280px;
    height: 280px;
    margin: 0 auto 30px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    border: 6px solid white;
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    background-color: #f8f6f0;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.circle-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: block;
    position: relative;
    z-index: 1;
}

/* 🎯 향상된 호버 효과 - 더 부드럽고 세련됨 */
.product-circle:hover .circle-image-container {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.18);
    border-color: var(--secondary-color);
}

.product-circle:hover .circle-image {
    transform: scale(1.08);
}

.product-circle:hover .circle-product-info {
    transform: translateY(-5px);
}

.circle-product-info {
    padding: 20px 15px;
    transition: var(--transition);
}

.circle-product-info h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    transition: var(--transition);
    font-weight: 600;
    letter-spacing: -0.01em;
}

.circle-product-info p {
    color: var(--muted-color);
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 1rem;
    max-width: 280px;
    margin-left: auto;
    margin-right: auto;
}

.product-circle:hover .circle-product-info h3 {
    color: var(--accent-color);
    transform: scale(1.02);
}

/* Features Section */
.features-section {
    text-align: center;
}

.features-section .section-bg {
    background-color: #f8f9fa;
    background-image: url('../images/granola-bg-light.jpg');
    background-size: cover;
    background-position: center center;
    opacity: 0.15;
}

.features-section .section-content {
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    padding: 60px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    max-width: 1200px;
    margin: 0 auto;
}

.features-section h2 {
    color: var(--primary-color);
    font-size: 3rem;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
    font-weight: 400;
}

.features-section h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background-color: var(--secondary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    grid-gap: 40px;
    margin-top: 40px;
}

.feature-card {
    background-color: rgba(255, 255, 255, 0.7);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    background-color: rgba(255, 255, 255, 0.9);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: inline-block;
    color: var(--primary-color);
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.feature-card p {
    color: var(--muted-color);
    margin-bottom: 0;
}

/* Footer */
footer {
    background-color: #282F33;
    color: white;
    padding: 70px 0 30px;
    scroll-snap-align: none;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    grid-gap: 40px;
    margin-bottom: 40px;
}

.footer-logo h2 {
    color: white;
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.footer-logo p {
    color: #ccc;
}

.footer-links h3, .footer-contact h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #ccc;
    transition: var(--transition);
}

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

.footer-contact p {
    color: #ccc;
    margin-bottom: 10px;
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-icon {
    color: white;
    transition: var(--transition);
}

.social-icon:hover {
    color: var(--secondary-color);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #aaa;
    font-size: 0.9rem;
}

/* 💎 Modern Chatbot Design - Premium & Trendy */
.chatbot-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    font-family: var(--body-font);
}

/* 🔄 Enhanced Toggle Button */
.chatbot-toggle {
    background: linear-gradient(135deg, var(--primary-color), #2d5a3d, #4a7c59);
    color: white;
    border-radius: 50px;
    padding: 18px 30px;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(59, 110, 74, 0.3);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    letter-spacing: 0.5px;
    border: none;
    position: relative;
    overflow: hidden;
}

.chatbot-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.chatbot-toggle:hover::before {
    left: 100%;
}

.chatbot-toggle:hover {
    background: linear-gradient(135deg, var(--accent-color), #c44d34, #e6634a);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 35px rgba(59, 110, 74, 0.4);
}

.close-text {
    display: none;
}

/* 🪟 Enhanced Chat Window */
.chatbot-window {
    position: absolute;
    bottom: 85px;
    right: 0;
    width: 420px;
    background: linear-gradient(145deg, #ffffff, #f8f9fa);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    display: none;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    opacity: 0;
    transform: translateY(30px) scale(0.9);
    border: 1px solid rgba(59, 110, 74, 0.1);
}

.chatbot-window.active {
    display: block;
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* 📱 Modern Header */
.chatbot-header {
    background: linear-gradient(135deg, var(--primary-color), #2d5a3d);
    color: white;
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 15px rgba(59, 110, 74, 0.2);
}

.chatbot-header h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.minimize-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 1.4rem;
    cursor: pointer;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.minimize-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* 💬 Enhanced Messages Area */
.chatbot-messages {
    height: 350px;
    overflow-y: auto;
    padding: 25px 20px;
    background: linear-gradient(145deg, #fafbfc, #f5f6f7);
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) #f0f0f0;
}

.chatbot-messages::-webkit-scrollbar {
    width: 6px;
}

.chatbot-messages::-webkit-scrollbar-track {
    background: #f0f0f0;
    border-radius: 3px;
}

.chatbot-messages::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

/* 🎨 Revolutionary Message Design */
.message {
    margin-bottom: 20px;
    animation: messageSlideIn 0.4s ease-out;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 🤖 Bot Message - Card Style */
.bot-message {
    background: linear-gradient(145deg, #ffffff, #f8f9fa);
    border: 1px solid rgba(59, 110, 74, 0.1);
    border-radius: 18px;
    padding: 0;
    max-width: 92%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.bot-message:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.bot-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

/* 🎯 Enhanced Bot Message Content */
.bot-message-content {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 20px 20px 25px;
}

/* 👤 Premium Avatar Design */
.bot-avatar-large {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), #2d5a3d, #4a7c59);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 8px 25px rgba(59, 110, 74, 0.3);
    position: relative;
    border: 3px solid white;
    transition: all 0.3s ease;
}

.bot-avatar-large::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color), var(--secondary-color));
    z-index: -1;
}

.bot-avatar-large svg {
    width: 32px;
    height: 32px;
    stroke: white;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

.bot-message:hover .bot-avatar-large {
    transform: scale(1.05);
    box-shadow: 0 12px 35px rgba(59, 110, 74, 0.4);
}

/* 📝 Enhanced Text Styling */
.bot-text {
    flex: 1;
    font-size: 15px;
    line-height: 1.6;
    color: #2d3748;
    font-weight: 400;
    letter-spacing: 0.2px;
    padding-top: 8px;
}

/* 👤 User Message - Modern Style */
.user-message {
    background: linear-gradient(135deg, var(--primary-color), #2d5a3d);
    color: white;
    border-radius: 18px;
    padding: 15px 20px;
    margin-left: auto;
    margin-right: 0;
    max-width: 85%;
    box-shadow: 0 4px 15px rgba(59, 110, 74, 0.25);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.user-message::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
    background: rgba(255, 255, 255, 0.3);
}

/* ⌨️ Enhanced Typing Indicator */
.typing-indicator {
    background: linear-gradient(145deg, #f8f9fa, #ffffff);
    border: 1px solid rgba(59, 110, 74, 0.1);
    border-radius: 18px;
    padding: 0;
    max-width: 92%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.typing-dots {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    height: 25px;
    padding: 5px 15px;
}

.typing-dots span {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), #2d5a3d);
    margin: 0 3px;
    opacity: 0.7;
    animation: typingAnimation 1.4s infinite ease-in-out;
    box-shadow: 0 2px 4px rgba(59, 110, 74, 0.2);
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingAnimation {
    0%, 60%, 100% {
        transform: translateY(0) scale(1);
        opacity: 0.7;
    }
    30% {
        transform: translateY(-8px) scale(1.2);
        opacity: 1;
    }
}

/* 💬 Enhanced Input Area */
.chatbot-input {
    display: flex;
    padding: 20px;
    background: linear-gradient(145deg, #ffffff, #f8f9fa);
    border-top: 1px solid rgba(59, 110, 74, 0.1);
    gap: 12px;
}

.chatbot-input input {
    flex-grow: 1;
    border: 2px solid rgba(59, 110, 74, 0.1);
    padding: 15px 20px;
    border-radius: 25px;
    background: linear-gradient(145deg, #fafbfc, #ffffff);
    outline: none;
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 0.3px;
    transition: all 0.3s ease;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.05);
}

.chatbot-input input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 110, 74, 0.15), inset 0 2px 5px rgba(0, 0, 0, 0.05);
    background: #ffffff;
}

.chatbot-input input::placeholder {
    color: #a0aec0;
    font-weight: 400;
}

/* 🚀 Enhanced Send Button */
.send-btn {
    background: linear-gradient(135deg, var(--primary-color), #2d5a3d);
    color: white;
    border: none;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 15px rgba(59, 110, 74, 0.3);
    position: relative;
    overflow: hidden;
}

.send-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.send-btn:hover::before {
    left: 100%;
}

.send-btn:hover,
.send-btn:focus {
    background: linear-gradient(135deg, var(--accent-color), #c44d34);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 25px rgba(225, 92, 65, 0.4);
    outline: none;
}

.send-btn:active {
    transform: translateY(0) scale(0.95);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes arrowBounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) rotate(45deg);
    }
    40% {
        transform: translateY(-15px) rotate(45deg);
    }
    60% {
        transform: translateY(-7px) rotate(45deg);
    }
}

/* 🚀 혁신적인 모바일 제품 카드 디자인 */
@media (max-width: 768px) {
    .products-section {
        padding: 80px 0;
    }
    
    .products-section .section-content {
        background: none;
        padding: 0 20px;
        box-shadow: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }
    
    .products-section h2 {
        font-size: 2.2rem;
        margin-bottom: 3rem;
        left: 0;
        transform: none;
        text-align: center;
        font-weight: 600;
        color: var(--primary-color);
        line-height: 1.2;
    }
    
    /* 모던 카드 스타일 그리드 */
    .products-circle-container {
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 0;
        margin-top: 30px;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .product-circle {
        background: linear-gradient(145deg, #ffffff, #f8f9fa);
        border-radius: 24px;
        padding: 30px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
        border: 1px solid rgba(59, 110, 74, 0.1);
        transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    
    .product-circle:hover,
    .product-circle:active {
        transform: translateY(-8px);
        box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
        border-color: var(--secondary-color);
    }
    
    .circle-image-container {
        width: 180px;
        height: 180px;
        border-width: 3px;
        margin-bottom: 25px;
        border-color: var(--light-color);
        background: linear-gradient(145deg, #f8f6f0, #ffffff);
    }
    
    .circle-product-info {
        padding: 0;
    }
    
    .circle-product-info h3 {
        font-size: 1.6rem;
        margin-bottom: 12px;
        font-weight: 700;
        letter-spacing: -0.02em;
    }
    
    .circle-product-info p {
        font-size: 1rem;
        line-height: 1.7;
        margin-bottom: 0;
        color: #5a6c7d;
        font-weight: 400;
    }
}

/* 🌟 모바일 About 섹션 - 미니멀 & 우아함 */
@media (max-width: 768px) {
    .about-section {
        min-height: auto;
        padding: 80px 0;
        background: linear-gradient(135deg, #fafafa, #f5f7fa);
    }
    
    .about-section .section-content {
        background: none;
        box-shadow: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        padding: 0 25px;
    }
    
    .mobile-content h2 {
        font-size: 2.2rem;
        margin-bottom: 2.5rem;
        font-weight: 600;
        line-height: 1.3;
    }
    
    .mobile-content h2::after {
        display: none;
    }
    
    .mobile-image-container {
        margin: 2.5rem auto;
        border-radius: 24px;
        box-shadow: 0 25px 50px rgba(0, 0, 0, 0.12);
        overflow: hidden;
        max-width: 320px;
    }
    
    .mobile-hero-image {
        height: 220px;
        object-fit: cover;
        transition: transform 0.6s ease;
    }
    
    .mobile-image-container:hover .mobile-hero-image {
        transform: scale(1.05);
    }
    
    .mobile-tagline {
        font-size: 1.4rem;
        margin-top: 2rem;
        font-weight: 500;
        color: var(--primary-color);
        letter-spacing: 0.01em;
    }
}

/* Responsive styles */
@media (max-width: 992px) {
    .main-title {
        font-size: 4rem;
    }
    
    .brand-name {
        font-size: 3rem;
    }
    
    .section-content {
        padding: 40px 30px;
    }
}

@media (max-width: 768px) {
    /* 🎨 모바일 전용 최적화 */
    section {
        min-height: auto !important;
        height: auto !important;
        padding: 80px 0;
    }
    
    .hero {
        min-height: 100vh;
        padding: 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .hero-content {
        padding: 0 25px;
    }
    
    .main-title {
        font-size: 2.8rem;
        margin-bottom: 1.2rem;
        font-weight: 300;
        letter-spacing: -0.02em;
    }
    
    .tagline {
        font-size: 1.2rem;
        margin-bottom: 2rem;
        font-weight: 400;
        opacity: 0.95;
    }
    
    .brand-name {
        font-size: 2.2rem;
        margin-bottom: 3rem;
        font-weight: 600;
        letter-spacing: 0.02em;
    }
    
    .scroll-indicator {
        bottom: 40px;
    }
    
    .scroll-indicator span {
        font-size: 0.9rem;
        margin-bottom: 12px;
    }
    
    .features-grid, .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .feature-card {
        padding: 35px 25px;
        border-radius: 20px;
        background: linear-gradient(145deg, #ffffff, #f8f9fa);
        border: 1px solid rgba(59, 110, 74, 0.1);
    }
    
    .feature-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
    }
    
    .chatbot-window {
        width: calc(100vw - 40px);
        max-width: 380px;
        right: 20px;
    }
    
    .about-section h2,
    .features-section h2 {
        font-size: 2.2rem;
        font-weight: 600;
    }
    
    /* 🚀 모바일 몰입형 헤더리스 챗봇 */
    .chatbot-header {
        display: none !important;
    }
    
    .chatbot-messages {
        height: calc(350px + 60px);
        padding-top: 30px;
        border-radius: 20px 20px 0 0;
    }
    
    /* 첫 번째 메시지 특별 스타일 */
    .bot-message:first-child {
        padding-top: 10px;
        max-width: 100%;
    }
    
    .bot-message:first-child .bot-message-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 20px;
        padding: 25px 20px;
    }
    
    .bot-message:first-child .bot-avatar-large {
        width: 80px;
        height: 80px;
        align-self: center;
        position: relative;
    }
    
    /* 아바타 이름 표시 */
    .bot-message:first-child .bot-avatar-large::after {
        content: "Dr.Sun";
        position: absolute;
        bottom: -30px;
        left: 50%;
        transform: translateX(-50%);
        font-size: 14px;
        color: var(--primary-color);
        font-weight: 600;
        letter-spacing: 0.5px;
        background: rgba(255, 255, 255, 0.9);
        padding: 4px 12px;
        border-radius: 12px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    
    .bot-message:first-child .bot-text {
        width: 100%;
        text-align: center;
        font-size: 16px;
        font-weight: 500;
        line-height: 1.7;
        padding-top: 0;
        margin-top: 15px;
    }
    
    /* 후속 메시지들은 기존 스타일 유지하되 개선 */
    .bot-message:not(:first-child) {
        max-width: 100%;
    }
    
    .bot-message:not(:first-child) .bot-message-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 15px 20px;
    }
    
    .bot-message:not(:first-child) .bot-avatar-large {
        width: 48px;
        height: 48px;
        align-self: flex-start;
    }
    
    .bot-message:not(:first-child) .bot-text {
        width: 100%;
        text-align: left;
        font-size: 15px;
        padding-top: 0;
        margin-left: 0;
    }
    
    /* 사용자 메시지도 전체 폭 활용 */
    .user-message {
        max-width: 95%;
        margin-left: 5%;
    }
    
    /* 타이핑 인디케이터 개선 */
    .typing-indicator {
        max-width: 100%;
        margin-left: 60px;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2.2rem;
    }
    
    .brand-name {
        font-size: 2rem;
    }
    
    .chatbot-window {
        width: 280px;
        right: -10px;
    }
    
    .section-content {
        padding: 30px 20px;
    }
    
    .about-section h2,
    .products-section h2,
    .features-section h2 {
        font-size: 1.8rem;
    }
    
    .mobile-content h2 {
        font-size: 1.8rem;
    }
    
    .mobile-image-container {
        max-width: 250px;
    }
    
    .mobile-hero-image {
        height: 150px;
    }
}