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

:root {
    /* Brand Colors - Based on YOUSTAR Logo */
    --orange: #FF8C42;
    --pink: #FF3366;
    --purple: #CC33FF;
    --blue: #3366FF;
    
    /* Gradient */
    --star-gradient: linear-gradient(135deg, #FF8C42 0%, #FF3366 33%, #CC33FF 66%, #3366FF 100%);
    --gradient-soft: linear-gradient(135deg, rgba(255,140,66,0.1) 0%, rgba(255,51,102,0.1) 100%);
    
    /* Text Colors */
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-light: #999999;
    
    /* Background Colors */
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a1a;
    
    /* Platform Colors */
    --youtube-red: #FF0000;
    --instagram-gradient: linear-gradient(45deg, #f09433 0%,#e6683c 25%,#dc2743 50%,#cc2366 75%,#bc1888 100%);
    --tiktok-gradient: linear-gradient(135deg, #00f2ea 0%, #ff0050 100%);
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.15);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* 모바일 해상도 최적화 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    body {
        -webkit-text-size-adjust: 100%;
        text-size-adjust: 100%;
    }
}

/* 터치 최적화 */
a, button, input, textarea, select {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
    touch-action: manipulation;
}

img {
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}

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

/* ==========================================
   Navigation
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo-main {
    font-family: 'Montserrat', sans-serif;
    font-size: 22px;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.logo-sub {
    font-family: 'Montserrat', sans-serif;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 15px;
    position: relative;
    transition: var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--star-gradient);
    transition: var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    background: var(--star-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.cta-button {
    padding: 12px 28px;
    background: var(--star-gradient);
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cta-button.kakao-consult {
    background: #FEE500;
    color: #3C1E1E;
    display: flex;
    align-items: center;
    gap: 6px;
}

.cta-button.kakao-consult:hover {
    background: #FDD835;
    color: #3C1E1E;
}

.cta-button.kakao-consult i {
    font-size: 18px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #fff5f0 0%, #fff0f7 50%, #f5f0ff 100%);
}

.animated-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,140,66,0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(204,51,255,0.15) 0%, transparent 50%);
    animation: gradient-shift 10s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--star-gradient);
    color: white;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 30px;
    animation: pulse 2s ease infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.hero-title {
    font-size: 56px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.gradient-text {
    background: var(--star-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 50px;
}

.btn {
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition-normal);
    min-height: 48px; /* 모바일 터치 최적화 */
    -webkit-appearance: none;
    appearance: none;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

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

.hero-platforms {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.platform-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.platform-item i {
    font-size: 24px;
}

.platform-item:nth-child(1) i { color: var(--youtube-red); }
.platform-item:nth-child(2) i { 
    background: var(--instagram-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.platform-item:nth-child(3) i { color: #000000; }

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    z-index: 2;
}

.phone-frame {
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 20px;
    background: #0a0a0a;
    border-radius: 0 0 20px 20px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 32px;
    overflow: hidden;
    position: relative;
}

.video-preview {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0,0,0,0.3), transparent);
}

.video-preview i {
    font-size: 80px;
    color: white;
    opacity: 0.8;
    cursor: pointer;
    transition: var(--transition-normal);
}

.video-preview i:hover {
    opacity: 1;
    transform: scale(1.1);
}

.floating-element {
    position: absolute;
    background: white;
    padding: 12px 20px;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 14px;
    animation: float 3s ease-in-out infinite;
}

.floating-element i {
    font-size: 20px;
}

.element-1 {
    top: 10%;
    left: -10%;
    animation-delay: 0s;
}

.element-1 i { color: var(--orange); }

.element-2 {
    top: 50%;
    right: -10%;
    animation-delay: 1s;
}

.element-2 i { color: var(--purple); }

.element-3 {
    bottom: 15%;
    left: 5%;
    animation-delay: 2s;
}

.element-3 i { color: var(--pink); }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ==========================================
   Section Header
   ========================================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: var(--gradient-soft);
    background: var(--star-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 2px;
    margin-bottom: 15px;
    border: 2px solid;
    border-image: var(--star-gradient) 1;
    border-radius: 50px;
}

.section-title {
    font-size: 42px;
    font-weight: 900;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==========================================
   Services Section
   ========================================== */
.services {
    padding: var(--section-padding);
    background: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    border: 2px solid #f0f0f0;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    transition: var(--transition-normal);
}

.service-card.shorts::before { background: var(--youtube-red); }
.service-card.reels::before { background: var(--instagram-gradient); }
.service-card.studio::before { background: var(--star-gradient); }

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.service-card.featured {
    border: 2px solid;
    border-image: var(--instagram-gradient) 1;
    background: linear-gradient(135deg, rgba(240,148,51,0.03), rgba(188,24,136,0.03));
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--star-gradient);
    color: white;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
}

.service-icon {
    width: 70px;
    height: 70px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    font-size: 32px;
    transition: var(--transition-normal);
}

.service-card.shorts .service-icon {
    background: rgba(255,0,0,0.1);
    color: var(--youtube-red);
}

.service-card.reels .service-icon {
    background: var(--instagram-gradient);
    color: white;
}

.service-card.studio .service-icon {
    background: var(--star-gradient);
    color: white;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-badge {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.service-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.7;
    font-size: 15px;
}

.service-features {
    list-style: none;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 14px;
}

.service-features i {
    font-size: 16px;
    flex-shrink: 0;
}

.service-card.shorts .service-features i { color: var(--youtube-red); }
.service-card.reels .service-features i { color: #E1306C; }
.service-card.studio .service-features i { color: var(--purple); }

/* ==========================================
   Pricing Section
   ========================================== */
.pricing {
    padding: var(--section-padding);
    background: var(--bg-light);
}

.pricing-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.pricing-tab {
    padding: 12px 30px;
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-normal);
}

.pricing-tab.active {
    background: var(--star-gradient);
    color: white;
    border-color: transparent;
}

.pricing-tab:hover:not(.active) {
    border-color: var(--pink);
    color: var(--pink);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.pricing-card {
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: 20px;
    padding: 35px 25px;
    position: relative;
    transition: var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.pricing-card.featured {
    border: 3px solid;
    border-image: var(--star-gradient) 1;
    background: var(--gradient-soft);
}

.hot-badge,
.best-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    color: white;
}

.hot-badge {
    background: linear-gradient(135deg, #FF6B6B, #FF0000);
}

.best-badge {
    background: var(--star-gradient);
}

.pricing-header {
    text-align: center;
    padding-bottom: 25px;
    border-bottom: 2px solid #f0f0f0;
    margin-bottom: 25px;
}

.pricing-header h3 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.pricing-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.6;
}

.pricing-features i {
    font-size: 14px;
    margin-top: 2px;
    flex-shrink: 0;
}

.pricing-features .fa-check {
    color: var(--purple);
}

.pricing-features .fa-info-circle {
    color: var(--orange);
}

.pricing-features .premium-feature {
    color: var(--purple);
    font-weight: 600;
    background: rgba(204, 51, 255, 0.05);
    padding: 8px 10px;
    border-radius: 8px;
    margin-left: -10px;
    margin-right: -10px;
}

.pricing-features .premium-feature i {
    color: var(--orange);
}

.pricing-button {
    width: 100%;
    padding: 14px;
    background: var(--bg-light);
    color: var(--text-primary);
    border: 2px solid #e0e0e0;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.pricing-button:hover {
    background: var(--text-primary);
    color: white;
    border-color: var(--text-primary);
}

.pricing-button.primary {
    background: var(--star-gradient);
    color: white;
    border: none;
}

.pricing-button.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.kakao-consult-btn {
    background: #FEE500 !important;
    color: #3C1E1E !important;
    border: none !important;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 700;
}

.kakao-consult-btn:hover {
    background: #FDD835 !important;
    color: #3C1E1E !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.kakao-consult-btn i {
    font-size: 18px;
}

/* ==========================================
   Portfolio Section
   ========================================== */
.portfolio {
    padding: var(--section-padding);
    background: var(--bg-white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.portfolio-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    cursor: pointer;
}

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

.portfolio-image {
    position: relative;
    width: 100%;
    aspect-ratio: 9/16;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    overflow: hidden;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay i {
    font-size: 60px;
    color: white;
    margin-bottom: 15px;
}

.portfolio-overlay p {
    color: white;
    font-size: 16px;
    font-weight: 600;
}

.portfolio-info {
    padding: 20px;
}

.portfolio-info h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.portfolio-stats {
    display: flex;
    gap: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

.portfolio-stats span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.portfolio-stats i {
    color: var(--pink);
}

/* ==========================================
   FAQ Section
   ========================================== */
.faq {
    padding: var(--section-padding);
    background: var(--bg-light);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-category {
    margin-bottom: 50px;
}

.faq-category-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--purple);
}

.faq-category-title i {
    font-size: 24px;
    color: var(--purple);
}

.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    padding: 20px 25px;
    background: white;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    transition: var(--transition-normal);
}

.faq-question:hover {
    background: var(--gradient-soft);
}

.faq-question i {
    font-size: 14px;
    color: var(--purple);
    transition: var(--transition-normal);
    flex-shrink: 0;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
}

.faq-answer p,
.faq-answer ul,
.faq-answer ol {
    padding: 0 25px 20px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.faq-answer p:first-child {
    padding-top: 5px;
}

.faq-answer ul,
.faq-answer ol {
    padding-left: 45px;
    padding-right: 25px;
}

.faq-answer li {
    margin-bottom: 10px;
}

.faq-answer strong {
    color: var(--text-primary);
    font-weight: 600;
}

.faq-cta {
    background: var(--star-gradient);
    padding: 50px 40px;
    border-radius: 20px;
    text-align: center;
    margin-top: 60px;
    color: white;
}

.faq-cta h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 10px;
}

.faq-cta p {
    font-size: 16px;
    margin-bottom: 25px;
    opacity: 0.95;
}

.faq-cta-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    background: #FEE500;
    color: #3C1E1E;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.faq-cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.faq-cta-button i {
    font-size: 20px;
}

/* ==========================================
   Contact Section
   ========================================== */
.contact {
    padding: var(--section-padding);
    background: var(--bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    background: white;
    padding: 60px;
    border-radius: 30px;
    box-shadow: var(--shadow-lg);
}

.contact-info h2 {
    font-size: 38px;
    font-weight: 900;
    margin-bottom: 20px;
    color: var(--text-primary);
    line-height: 1.3;
}

.contact-info > p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--star-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.contact-item p {
    font-size: 15px;
    color: var(--text-secondary);
}

.contact-social h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
    transition: var(--transition-normal);
}

.social-links a:nth-child(1) {
    background: var(--youtube-red);
}

.social-links a:nth-child(2) {
    background: var(--instagram-gradient);
}

.social-links a:nth-child(3) {
    background: linear-gradient(135deg, #00f2ea, #ff0050);
}

.social-links a:nth-child(4) {
    background: #1877f2;
}

.social-links a:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* Form Styles */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-family: inherit;
    font-size: 15px;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--purple);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-button {
    width: 100%;
    padding: 16px;
    background: var(--star-gradient);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
}

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

/* ==========================================
   Footer
   ========================================== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo .logo-text .logo-main {
    color: white;
}

.footer-logo .logo-text .logo-sub {
    color: #999;
}

.footer-section p {
    color: #999;
    margin-bottom: 25px;
    line-height: 1.7;
}

.footer-platforms {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.platform-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: rgba(255,255,255,0.05);
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    color: #999;
}

.platform-badge i {
    font-size: 16px;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
}

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

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: #999;
    text-decoration: none;
    transition: var(--transition-fast);
    font-size: 14px;
}

.footer-section ul li a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    color: #666;
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: #999;
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition-fast);
}

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

/* ==========================================
   Scroll to Top Button
   ========================================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--star-gradient);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

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

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

/* ==========================================
   Floating KakaoTalk Button
   ========================================== */
.kakao-float {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #FEE500;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #3C1E1E;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(254, 229, 0, 0.4);
    transition: var(--transition-normal);
    z-index: 998;
    animation: kakao-pulse 2s ease infinite;
    opacity: 0;
    visibility: hidden;
}

@keyframes kakao-pulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 4px 20px rgba(254, 229, 0, 0.4);
    }
    50% { 
        transform: scale(1.1);
        box-shadow: 0 8px 30px rgba(254, 229, 0, 0.6);
    }
}

.kakao-float i {
    font-size: 28px;
    margin-bottom: 2px;
}

.kakao-float span {
    font-size: 10px;
    font-weight: 700;
    margin-top: -2px;
}

.kakao-float:hover {
    transform: scale(1.15);
    box-shadow: 0 8px 30px rgba(254, 229, 0, 0.6);
    animation: none;
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 46px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        padding: 40px;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    /* 고해상도 모바일 최적화 */
    html {
        -webkit-text-size-adjust: 100%;
        text-size-adjust: 100%;
    }
    
    body {
        font-size: 15px;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        padding: 40px;
        gap: 20px;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-xl);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .cta-button {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
        min-width: 44px;
        min-height: 44px;
        padding: 10px;
    }
    
    .hero {
        min-height: auto;
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 32px;
        line-height: 1.3;
        word-break: keep-all;
    }
    
    .hero-description {
        font-size: 15px;
        line-height: 1.7;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
        min-height: 52px;
        font-size: 15px;
    }
    
    .floating-element {
        display: none;
    }
    
    .section-title {
        font-size: 28px;
        line-height: 1.3;
        word-break: keep-all;
    }
    
    .section-description {
        font-size: 15px;
        line-height: 1.7;
    }
    
    /* 서비스 카드 모바일 최적화 */
    .service-card {
        padding: 35px 25px;
    }
    
    .service-card h3 {
        font-size: 22px;
    }
    
    .service-card p {
        font-size: 14px;
        line-height: 1.7;
    }
    
    /* 요금제 모바일 최적화 */
    .pricing-tabs {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .pricing-tab {
        width: 100%;
        min-height: 48px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
        gap: 20px;
    }
    
    .pricing-card {
        padding: 30px 20px;
    }
    
    .pricing-header h3 {
        font-size: 22px;
    }
    
    .pricing-features li {
        font-size: 13px;
        line-height: 1.6;
    }
    
    .pricing-button {
        min-height: 52px;
        font-size: 15px;
    }
    
    /* 포트폴리오 모바일 최적화 */
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .portfolio-item {
        max-width: 400px;
        margin: 0 auto;
    }
    
    /* 연락처 폼 모바일 최적화 */
    .contact-content {
        padding: 30px 25px;
    }
    
    .contact-info h2 {
        font-size: 28px;
        line-height: 1.3;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px; /* iOS 줌 방지 */
        min-height: 48px;
        padding: 12px 16px;
    }
    
    .submit-button {
        min-height: 52px;
        font-size: 16px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .kakao-float {
        bottom: 80px;
        right: 20px;
        width: 56px;
        height: 56px;
    }
    
    .kakao-float i {
        font-size: 26px;
    }
    
    .kakao-float span {
        font-size: 9px;
    }
    
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 46px;
        height: 46px;
    }
    
    .faq-question {
        padding: 18px 20px;
        font-size: 15px;
        line-height: 1.5;
        min-height: 60px;
    }
    
    .faq-answer p,
    .faq-answer ul,
    .faq-answer ol {
        padding: 0 20px 18px;
        font-size: 14px;
        line-height: 1.7;
    }
    
    .faq-answer ul,
    .faq-answer ol {
        padding-left: 40px;
    }
    
    .faq-category-title {
        font-size: 20px;
    }
    
    .faq-cta {
        padding: 40px 30px;
    }
    
    .faq-cta h3 {
        font-size: 24px;
        line-height: 1.3;
    }
    
    .faq-cta-button {
        min-height: 52px;
        font-size: 15px;
    }
}

/* 소형 모바일 (iPhone SE, 갤럭시 S 등) */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 26px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
        width: 100%;
    }
    
    .stat-item {
        width: 100%;
    }
    
    .stat-number {
        font-size: 40px;
    }
    
    .phone-frame {
        width: 220px;
        height: 440px;
    }
    
    .service-card,
    .pricing-card {
        padding: 25px 18px;
    }
    
    .pricing-header h3 {
        font-size: 20px;
    }
    
    .amount {
        font-size: 48px;
    }
}

/* 고해상도 디스플레이 (Retina) 최적화 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    body {
        font-weight: 400;
    }
    
    .hero-title,
    .section-title {
        font-weight: 800;
        letter-spacing: -0.02em;
    }
    
    /* SVG 아이콘 선명하게 */
    .service-icon i,
    .feature-icon-large i {
        transform: translateZ(0);
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
    }
}

/* 가로 모드 모바일 최적화 */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 100px 0 40px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
}