/* =============================================
   큐알오더 - Modern Redesign 2026
   ============================================= */

/* ---------- CSS Custom Properties ---------- */
:root {
    --color-primary: #4F46E5;
    --color-primary-light: #818CF8;
    --color-primary-dark: #3730A3;
    --color-accent: #06B6D4;
    --color-accent-light: #67E8F9;
    --color-surface: #FFFFFF;
    --color-surface-alt: #F8FAFC;
    --color-surface-dark: #0F172A;
    --color-text: #1E293B;
    --color-text-secondary: #64748B;
    --color-text-light: #94A3B8;
    --color-border: #E2E8F0;
    --color-gradient-1: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    --color-gradient-2: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #334155 100%);
    --color-gradient-hero: linear-gradient(180deg, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.6) 50%, rgba(15,23,42,0.9) 100%);
    --font-main: 'Pretendard Variable', 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --font-display: 'Space Grotesk', 'Pretendard Variable', sans-serif;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 10px 10px -5px rgba(0,0,0,0.03);
    --shadow-glow: 0 0 60px rgba(79,70,229,0.15);
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --container-max: 1200px;
    --header-height: 72px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Reveal Animations ---------- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }

/* ---------- Buttons ---------- */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    background: var(--color-gradient-1);
    color: #fff;
    font-family: var(--font-main);
    font-size: 16px;
    font-weight: 600;
    border-radius: 100px;
    border: none;
    cursor: pointer;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    box-shadow: 0 4px 15px rgba(79,70,229,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79,70,229,0.4);
}

.btn-primary svg {
    transition: transform var(--transition-base);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    font-family: var(--font-main);
    font-size: 16px;
    font-weight: 600;
    border-radius: 100px;
    border: 1.5px solid rgba(255,255,255,0.25);
    cursor: pointer;
    transition: all var(--transition-base);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-radius: 100px;
    transition: color var(--transition-fast);
}

.btn-ghost:hover {
    color: var(--color-primary);
}

.btn-primary-sm {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    background: var(--color-primary);
    color: #fff;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 600;
    border-radius: 100px;
    transition: all var(--transition-base);
    box-shadow: 0 2px 8px rgba(79,70,229,0.25);
}

.btn-primary-sm:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79,70,229,0.35);
}

/* =============================================
   HEADER
   ============================================= */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    transition: background var(--transition-base), box-shadow var(--transition-base), backdrop-filter var(--transition-base);
}

#header.scrolled {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

.header-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 32px;
    width: auto;
    transition: opacity var(--transition-fast);
}

.logo:hover img {
    opacity: 0.8;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* =============================================
   HERO
   ============================================= */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: calc(var(--header-height) + 40px) 24px 60px;
}

.hero-video-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-video-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--color-gradient-hero);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    backdrop-filter: blur(10px);
    margin-bottom: 28px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent-light);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    font-family: var(--font-main);
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 800;
    line-height: 1.2;
    color: #fff;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--color-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#typed-wrapper {
    display: inline;
}

.typed-cursor {
    background: var(--color-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 300;
    animation: blink-cursor 0.75s step-end infinite;
}

@keyframes blink-cursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-desc {
    font-size: clamp(16px, 2vw, 20px);
    line-height: 1.7;
    color: rgba(255,255,255,0.7);
    margin-bottom: 40px;
}

.hero-desc strong {
    color: var(--color-accent-light);
    font-weight: 600;
}

.hero-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-mockup {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    overflow: hidden;
}

.mockup-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(ellipse, rgba(79,70,229,0.2) 0%, transparent 70%);
    pointer-events: none;
}

.laptop-frame {
    position: relative;
    display: inline-block;
    width: 100%;
}

.laptop-img {
    position: relative;
    z-index: 2;
    pointer-events: none;
    width: 100%;
}

.laptop-screen {
    position: absolute;
    top: 2.3%;
    left: 10.5%;
    right: 10.5%;
    bottom: 6%;
    z-index: 1;
    overflow: hidden;
    border-radius: 4px;
}

/* =============================================
   STATS
   ============================================= */
#stats {
    padding: 60px 0;
    background: var(--color-surface-alt);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stats-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

.stat-item {
    flex: 1;
    text-align: center;
    padding: 16px 24px;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.1;
}

.stat-number.special-text {
    font-family: var(--font-main);
}

.stat-unit {
    font-family: var(--font-main);
    font-size: clamp(18px, 2vw, 24px);
    font-weight: 600;
    color: var(--color-primary);
}

.stat-label {
    display: block;
    margin-top: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.stat-divider {
    width: 1px;
    height: 48px;
    background: var(--color-border);
    flex-shrink: 0;
}

/* =============================================
   FEATURES
   ============================================= */
#features {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(79,70,229,0.08);
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

.section-tag.light {
    background: rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.9);
}

.section-title {
    font-family: var(--font-main);
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.section-title strong {
    background: var(--color-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title.light {
    color: #fff;
}

.section-title.light strong {
    background: linear-gradient(135deg, #67E8F9 0%, #A5B4FC 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    margin-top: 16px;
    font-size: 17px;
    color: var(--color-text-secondary);
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.section-desc.light {
    color: rgba(255,255,255,0.6);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-gradient-1);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: rgba(79,70,229,0.08);
    color: var(--color-primary);
    margin-bottom: 20px;
    transition: all var(--transition-base);
}

.feature-card:hover .feature-icon {
    background: var(--color-primary);
    color: #fff;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text);
}

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

/* =============================================
   QR PROCESS
   ============================================= */
#qr-process {
    padding: 120px 0;
    background: var(--color-surface-alt);
}

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

.qr-visual {
    position: relative;
}

.qr-image-stack {
    position: relative;
    max-width: 480px;
}

.qr-img-main {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-height: 400px;
    object-fit: contain;
}

.qr-img-phone {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 50%;
    max-width: 240px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-slow);
}

.qr-visual:hover .qr-img-phone {
    transform: translate(-8px, -8px);
}

.section-title-left {
    font-family: var(--font-main);
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.section-title-left strong {
    background: var(--color-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.qr-text > p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

.qr-checklist {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.qr-checklist li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
}

.qr-checklist li svg {
    flex-shrink: 0;
    color: var(--color-primary);
}

/* =============================================
   SCREENS SHOWCASE
   ============================================= */
#screens {
    padding: 120px 0;
}

.screens-layout {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 48px;
    align-items: start;
}

.screen-block {
    position: relative;
}

.screen-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 20px;
}

.screen-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.admin-dot {
    background: var(--color-primary);
}

.customer-dot {
    background: var(--color-accent);
}

.screen-carousel {
    position: relative;
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 16px;
    overflow: hidden;
}

/* Swiper: 반드시 1개 슬라이드만 보이도록 강제 */
.screen-carousel .swiper,
.laptop-screen .swiper,
.phone-screen .swiper {
    overflow: hidden;
}

.screen-carousel .swiper-wrapper,
.laptop-screen .swiper-wrapper,
.phone-screen .swiper-wrapper {
    display: flex;
}

.screen-carousel .swiper-slide,
.laptop-screen .swiper-slide,
.phone-screen .swiper-slide {
    flex-shrink: 0;
    width: 100% !important;
}

.screen-carousel .swiper-slide img {
    border-radius: var(--radius-sm);
    width: 100%;
    display: block;
}

.laptop-screen .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.phone-screen .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.screen-carousel .swiper-pagination {
    position: relative;
    margin-top: 16px;
}

.screen-carousel .swiper-pagination-bullet {
    background: var(--color-text-light);
    opacity: 0.4;
    width: 8px;
    height: 8px;
    transition: all var(--transition-base);
}

.screen-carousel .swiper-pagination-bullet-active {
    background: var(--color-primary);
    opacity: 1;
    width: 24px;
    border-radius: 4px;
}

.carousel-nav {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 16px;
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.nav-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(79,70,229,0.04);
}

.phone-block {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.phone-mockup-img {
    position: relative;
    z-index: 2;
    pointer-events: none;
    width: 100%;
}

.phone-screen {
    position: absolute;
    top: 2.5%;
    left: 4.5%;
    right: 4.5%;
    bottom: 2.5%;
    z-index: 1;
    overflow: hidden;
    border-radius: 24px;
}

.phone-frame {
    position: relative;
    width: 260px;
    max-width: 100%;
    aspect-ratio: 9 / 19.5;
}

/* =============================================
   HOW IT WORKS
   ============================================= */
#how-it-works {
    padding: 120px 0;
    background: var(--color-surface-alt);
}

.steps-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 16px;
}

.step-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
}

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

.step-number {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 2;
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    background: var(--color-primary);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(79,70,229,0.3);
}

.step-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.step-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slow);
}

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

.step-content {
    padding: 24px 20px;
}

.step-content h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.step-content p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

/* =============================================
   VIDEO SECTION
   ============================================= */
#video-section {
    padding: 120px 0;
    background: var(--color-gradient-2);
    position: relative;
    overflow: hidden;
}

#video-section::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(79,70,229,0.15) 0%, transparent 70%);
    pointer-events: none;
}

#video-section::after {
    content: '';
    position: absolute;
    bottom: -200px;
    left: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(6,182,212,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.video-wrapper {
    max-width: 860px;
    margin: 0 auto;
}

.video-frame {
    position: relative;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.1);
}

.video-frame iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* =============================================
   CTA
   ============================================= */
#cta {
    padding: 120px 0;
}

.cta-card {
    position: relative;
    text-align: center;
    padding: 80px 40px;
    background: var(--color-gradient-1);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(79,70,229,0.3);
}

.cta-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 1px, transparent 1px),
                       radial-gradient(circle at 80% 50%, rgba(255,255,255,0.08) 1px, transparent 1px);
    background-size: 40px 40px, 60px 60px;
    pointer-events: none;
}

.cta-card h2 {
    position: relative;
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.cta-card p {
    position: relative;
    font-size: 17px;
    line-height: 1.7;
    color: rgba(255,255,255,0.8);
    margin-bottom: 40px;
}

.cta-buttons {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 36px;
    background: #fff;
    color: var(--color-primary);
    font-family: var(--font-main);
    font-size: 16px;
    font-weight: 700;
    border-radius: 100px;
    transition: all var(--transition-base);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.btn-cta svg {
    transition: transform var(--transition-base);
}

.btn-cta:hover svg {
    transform: translateX(4px);
}

.btn-cta-ghost {
    display: inline-flex;
    align-items: center;
    padding: 16px 36px;
    color: rgba(255,255,255,0.9);
    font-family: var(--font-main);
    font-size: 16px;
    font-weight: 600;
    border-radius: 100px;
    border: 1.5px solid rgba(255,255,255,0.3);
    transition: all var(--transition-base);
}

.btn-cta-ghost:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.5);
}

/* =============================================
   INQUIRY BUTTON (도입 문의)
   ============================================= */
.btn-inquiry {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    background: #FEE500;
    color: #3C1E1E;
    font-family: var(--font-main);
    font-size: 16px;
    font-weight: 600;
    border-radius: 100px;
    border: none;
    cursor: pointer;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    box-shadow: 0 4px 15px rgba(254,229,0,0.3);
}

.btn-inquiry:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(254,229,0,0.4);
}

.btn-inquiry svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* =============================================
   FLOATING KAKAO BUTTON
   ============================================= */
.floating-kakao {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: #FEE500;
    color: #3C1E1E;
    font-family: var(--font-main);
    font-size: 15px;
    font-weight: 700;
    border-radius: 100px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.15), 0 2px 8px rgba(0,0,0,0.1);
    transition: all var(--transition-base);
    text-decoration: none;
    animation: float-bounce 3s ease-in-out infinite;
}

.floating-kakao:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.floating-kakao svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

@keyframes float-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.floating-kakao:hover {
    animation: none;
    transform: translateY(-4px) scale(1.05);
}

/* =============================================
   FOOTER
   ============================================= */
#footer {
    padding: 48px 0 32px;
    background: var(--color-surface-dark);
    color: rgba(255,255,255,0.5);
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 24px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-brand img {
    height: 24px;
    width: auto;
    opacity: 0.7;
    filter: brightness(10);
}

.footer-brand p {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

.footer-contact {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.footer-contact a {
    color: rgba(255,255,255,0.7);
    transition: color var(--transition-fast);
}

.footer-contact a:hover {
    color: #fff;
}

.footer-sep {
    color: rgba(255,255,255,0.2);
}

.footer-info {
    margin-bottom: 20px;
}

.footer-info p {
    font-size: 13px;
    line-height: 1.8;
    color: rgba(255,255,255,0.35);
}

.footer-bottom p {
    font-size: 12px;
    color: rgba(255,255,255,0.25);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps-timeline {
        grid-template-columns: repeat(2, 1fr);
    }

    .qr-layout {
        gap: 48px;
    }

    .screens-layout {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    #hero {
        min-height: auto;
        padding: calc(var(--header-height) + 60px) 20px 40px;
    }

    .hero-buttons {
        flex-direction: column;
        margin-bottom: 40px;
    }

    .hero-buttons .btn-primary,
    .hero-buttons .btn-outline,
    .hero-buttons .btn-inquiry {
        width: 100%;
        justify-content: center;
    }

    .floating-kakao {
        bottom: 20px;
        right: 20px;
        padding: 12px 18px;
        font-size: 13px;
    }

    .floating-kakao svg {
        width: 20px;
        height: 20px;
    }

    .stats-grid {
        flex-wrap: wrap;
        gap: 0;
    }

    .stat-item {
        flex: 1 1 45%;
        padding: 16px;
    }

    .stat-divider {
        display: none;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card {
        padding: 28px 24px;
    }

    .qr-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .qr-img-phone {
        right: -20px;
        bottom: -20px;
        width: 50%;
    }

    .screens-layout {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .phone-block {
        align-items: center;
    }

    .phone-frame {
        width: 220px;
    }

    .steps-timeline {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .step-card {
        display: grid;
        grid-template-columns: 140px 1fr;
        align-items: stretch;
    }

    .step-image {
        aspect-ratio: auto;
        min-height: 100%;
    }

    .step-number {
        top: 8px;
        left: 8px;
        width: 28px;
        height: 28px;
        font-size: 12px;
    }

    #video-section {
        padding: 80px 0;
    }

    .video-frame {
        border-radius: var(--radius-md);
    }

    #cta {
        padding: 80px 0;
    }

    .cta-card {
        padding: 60px 24px;
        border-radius: var(--radius-lg);
    }

    #features, #qr-process, #screens, #how-it-works {
        padding: 80px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .footer-top {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-brand {
        flex-direction: column;
        gap: 8px;
    }

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

    .footer-bottom {
        text-align: center;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn-cta,
    .btn-cta-ghost {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .stat-item {
        flex: 1 1 100%;
    }

    .hero-title {
        font-size: 32px;
    }

    .step-card {
        grid-template-columns: 1fr;
    }

    .step-image {
        aspect-ratio: 16/9;
    }
}