:root{--teal: #20b2aa;--teal-light: #2dd4cc;--teal-dark: #1a918a;--teal-soft: rgba(32, 178, 170, .1);--teal-glow: rgba(32, 178, 170, .25);--amber: #f59e0b;--amber-light: #fbbf24;--amber-dark: #d97706;--amber-soft: rgba(245, 158, 11, .1);--gradient-brand: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);--gradient-amber: linear-gradient(135deg, var(--amber) 0%, var(--amber-dark) 100%);--gradient-duo: linear-gradient(135deg, var(--teal) 0%, var(--amber) 100%);--gradient-surface: linear-gradient(180deg, rgba(32, 178, 170, .03) 0%, transparent 60%);--bg-primary: #0a0d10;--bg-secondary: #11151a;--bg-card: #161b22;--bg-card-hover: #1c222b;--text-primary: #e8ecf0;--text-secondary: #8b95a3;--text-muted: #5a6577;--border-subtle: rgba(255, 255, 255, .06);--border-teal: rgba(32, 178, 170, .2);--border-amber: rgba(245, 158, 11, .2);--radius-md: 16px;--radius-lg: 24px;--radius-xl: 32px;--font-display: "Plus Jakarta Sans", sans-serif;--font-body: "Noto Sans KR", "Plus Jakarta Sans", sans-serif}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-body);font-size:16px;line-height:1.7;color:var(--text-primary);background:var(--bg-primary);overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--teal-light);text-decoration:none;transition:color .2s}a:hover{color:var(--teal)}img{max-width:100%;height:auto;display:block}.container{max-width:480px;margin:0 auto;padding:0 24px}.section{padding:64px 0}.header{position:fixed;top:0;left:0;right:0;z-index:100;background:#0a0d10d9;border-bottom:1px solid var(--border-subtle);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.header .container{display:flex;align-items:center;justify-content:space-between;height:56px}.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-size:20px;font-weight:800;color:var(--text-primary);letter-spacing:-.5px}.logo img{width:32px;height:32px;border-radius:8px}.nav-links{display:flex;align-items:center;gap:24px;list-style:none}.nav-links a{color:var(--text-secondary);font-size:14px;font-weight:500;transition:color .2s}.nav-links a:hover{color:var(--teal)}.hero{padding:120px 0 64px;text-align:center}.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:var(--teal-soft);border:1px solid var(--border-teal);border-radius:100px;font-size:13px;font-weight:600;color:var(--teal-light);margin-bottom:24px}.hero-badge .dot{width:6px;height:6px;background:var(--teal);border-radius:50%;animation:pulse-dot 2s ease-in-out infinite}@keyframes pulse-dot{0%,to{opacity:1}50%{opacity:.3}}.hero h1{font-family:var(--font-display);font-size:36px;font-weight:800;line-height:1.25;letter-spacing:-1.5px;margin-bottom:16px}.hero h1 .accent-teal{background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero h1 .accent-duo{background:var(--gradient-duo);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:16px;color:var(--text-secondary);line-height:1.7;margin-bottom:32px;max-width:400px;margin-left:auto;margin-right:auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;font-family:var(--font-display);font-size:15px;font-weight:700;border:none;border-radius:100px;cursor:pointer;transition:all .3s;text-decoration:none}.btn-primary{background:var(--gradient-brand);color:#fff;box-shadow:0 4px 24px #20b2aa4d}.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 8px 40px #20b2aa66}.btn-outline{background:transparent;color:var(--text-primary);border:1.5px solid var(--border-subtle)}.btn-outline:hover{border-color:var(--border-teal);color:var(--teal-light)}.btn-group{display:flex;flex-direction:column;align-items:center;gap:12px}.features{background:var(--bg-secondary)}.section-title{text-align:center;margin-bottom:48px}.section-label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:2px;color:var(--teal);margin-bottom:12px}.section-title h2{font-family:var(--font-display);font-size:24px;font-weight:800;letter-spacing:-.8px;margin-bottom:8px}.section-title p{color:var(--text-secondary);font-size:15px}.features-grid{display:grid;grid-template-columns:1fr;gap:14px}.feature-card{padding:28px 24px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);transition:background .3s,border-color .3s;position:relative;overflow:hidden}.feature-card:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-teal),transparent);opacity:0;transition:opacity .3s}.feature-card:hover{background:var(--bg-card-hover);border-color:var(--border-teal)}.feature-card:hover:before{opacity:1}.feature-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:14px;font-size:1.5rem;margin-bottom:16px;color:#fff}.feature-icon.teal-bg{background:var(--teal-soft);color:var(--teal-light)}.feature-icon.amber-bg{background:var(--amber-soft);color:var(--amber-light)}.feature-icon.purple-bg{background:#7b68ee1a;color:#9b8aff}.feature-icon.pink-bg{background:#e85d751a;color:#f07090}.feature-card h3{font-family:var(--font-display);font-size:18px;font-weight:700;margin-bottom:8px;letter-spacing:-.3px}.feature-card p{color:var(--text-secondary);font-size:14px;line-height:1.7}.download{text-align:center}.download-notice{display:inline-block;margin-top:16px;padding:6px 14px;background:var(--amber-soft);border:1px solid var(--border-amber);color:var(--amber-light);font-size:13px;font-weight:600;border-radius:100px}.store-buttons{display:flex;flex-direction:column;align-items:center;gap:12px;margin-top:32px}.store-badge{display:inline-block;transition:opacity .2s}.store-badge:hover{opacity:.8}.store-badge img{height:56px;width:auto}.footer{border-top:1px solid var(--border-subtle);padding:32px 0}.footer .container{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}.footer-logo{font-family:var(--font-display);font-weight:800;font-size:16px;color:var(--text-secondary)}.footer-links{display:flex;justify-content:center;gap:20px;list-style:none}.footer-links a{color:var(--text-muted);font-size:13px;transition:color .2s}.footer-links a:hover{color:var(--teal)}.footer-copy{font-size:13px;color:var(--text-muted)}@media(min-width:640px){.container{max-width:540px}.hero h1{font-size:44px}.btn-group{flex-direction:row;justify-content:center}.features-grid{grid-template-columns:repeat(2,1fr)}.store-buttons{flex-direction:row;justify-content:center}.footer .container{flex-direction:row;justify-content:space-between}}@media(min-width:1024px){.container{max-width:700px}.hero h1{font-size:48px}.features-grid{grid-template-columns:repeat(4,1fr)}.section{padding:80px 0}}