:root{--color-primary: #3B82F6;--color-secondary: #14B8A6;--color-accent: #3B82F6;--color-accent-hover: #2563EB;--color-accent-light: rgba(59, 130, 246, .1);--color-gold: #F59E0B;--bg-main: #0F172A;--bg-card: #1E293B;--bg-section-dark: #020617;--bg-elevated: #1E293B;--bg-subtle: #334155;--text-primary: #F1F5F9;--text-secondary: #CBD5E1;--text-tertiary: #94A3B8;--text-inverse: #0F172A;--border-light: rgba(255, 255, 255, .08);--border-default: rgba(255, 255, 255, .12);--font-sans: "Pretendard", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;--font-display: "Inter", "Pretendard", sans-serif;--container-width: 1200px;--header-height: 64px;--shadow-xs: 0 1px 2px rgb(0 0 0 / .2);--shadow-sm: 0 1px 3px rgb(0 0 0 / .3), 0 1px 2px rgb(0 0 0 / .2);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .4), 0 2px 4px -2px rgb(0 0 0 / .3);--shadow-lg: 0 10px 25px -3px rgb(0 0 0 / .4), 0 4px 6px -4px rgb(0 0 0 / .2);--shadow-xl: 0 20px 50px -12px rgb(0 0 0 / .5);--shadow-glow: 0 0 24px rgba(59, 130, 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4px 6px -4px rgb(0 0 0 / .04);--shadow-xl: 0 20px 50px -12px rgb(0 0 0 / .12);--shadow-glow: 0 0 24px rgba(59, 130, 246, .15);--shadow-card: 0 1px 3px rgb(0 0 0 / .06), 0 1px 2px rgb(0 0 0 / .03);--shadow-card-hover: 0 10px 30px rgb(0 0 0 / .08), 0 4px 8px rgb(0 0 0 / .04);color-scheme:light}[data-theme-transitioning] *,[data-theme-transitioning] *:before,[data-theme-transitioning] *:after{transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s 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var(--border-default);z-index:1000;display:flex;align-items:center}.navbar-container{display:flex;justify-content:space-between;align-items:center;width:100%}.navbar-logo{display:flex;align-items:center;gap:.5rem;color:var(--text-primary, #F1F5F9)}.navbar-logo-icon{width:32px;height:32px;object-fit:contain;flex-shrink:0}.navbar-brand-name{font-family:var(--font-display);font-weight:700;font-size:1.5rem;color:var(--text-primary);letter-spacing:-.02em;margin-top:1px}.navbar-links{display:flex;align-items:center;gap:1.75rem}.nav-link{font-weight:500;color:var(--text-secondary, #CBD5E1);position:relative;font-size:1.0625rem;padding:.5rem 0;transition:color var(--transition-fast, .15s)}.nav-link:hover,.nav-link.active{color:var(--text-primary, #F1F5F9)}.nav-link.active:after{content:"";position:absolute;bottom:0;left:0;width:100%;height:2px;background:var(--color-accent, #3B82F6);border-radius:2px}.nav-dropdown{position:relative}.nav-dropdown-trigger{display:inline-flex;align-items:center;gap:.25rem;background:none;border:none;cursor:pointer;font-family:inherit}.nav-dropdown-arrow{transition:transform .15s ease}.nav-dropdown-arrow.open{transform:rotate(180deg)}.nav-dropdown-menu{position:absolute;top:calc(100% + 10px);left:50%;transform:translate(-50%);min-width:160px;background:var(--bg-card, #1E293B);border:1px solid var(--border-light, #334155);border-radius:var(--radius-lg, 14px);box-shadow:0 10px 40px #0000004d;padding:.375rem;z-index:1100;animation:dropdownFadeIn .15s ease}.nav-dropdown-item{display:flex;align-items:center;gap:.5rem;padding:.55rem .75rem;font-size:1rem;color:var(--text-primary, #F1F5F9);text-decoration:none;border-radius:var(--radius-md, 10px);transition:background .15s ease}.nav-dropdown-item:hover{background:var(--bg-subtle, #334155)}.nav-dropdown-item svg{color:var(--text-secondary, #CBD5E1);flex-shrink:0}.nav-cta{background:#3b82f61f;border:1px solid rgba(59,130,246,.25);border-radius:9999px;padding:.375rem .875rem!important;color:#60a5fa!important;font-weight:600!important;font-size:1rem!important;transition:all .15s ease}.nav-cta:hover{background:#3b82f633;border-color:#3b82f666;color:#93bbfd!important}.btn-sm{padding:.45rem 1.125rem;font-size:1rem;border-radius:var(--radius-md, 10px)}.btn-logout{background:var(--bg-subtle, #334155);border:1px solid var(--border-light, #334155);cursor:pointer;color:var(--text-secondary, #CBD5E1);transition:all var(--transition-fast, .15s)}.btn-logout:hover{background:var(--border-light, #334155)}.profile-dropdown{position:relative}.profile-dropdown-trigger{display:flex;align-items:center;gap:.5rem;padding:.3rem .625rem;background:transparent;border:1px solid transparent;border-radius:var(--radius-md, 10px);cursor:pointer;transition:all var(--transition-fast, .15s)}.profile-dropdown-trigger:hover{background:var(--bg-subtle, 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14px);box-shadow:0 10px 40px #0000004d,0 2px 8px #00000026;padding:.375rem;z-index:1100;animation:dropdownFadeIn .15s ease}@keyframes dropdownFadeIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.dropdown-item{display:flex;align-items:center;gap:.625rem;width:100%;padding:.55rem .75rem;background:transparent;border:none;border-radius:var(--radius-md, 10px);font-size:1rem;color:var(--text-primary, #F1F5F9);text-decoration:none;cursor:pointer;transition:background var(--transition-fast, .15s)}.dropdown-item:hover{background:var(--bg-subtle, #334155)}.dropdown-item svg{width:17px;height:17px;color:var(--text-secondary, #CBD5E1);flex-shrink:0}.dropdown-item.admin{color:var(--color-accent, #3B82F6)}.dropdown-item.admin svg{color:var(--color-accent, #3B82F6)}.dropdown-divider{height:1px;background:var(--border-light, #334155);margin:.375rem 0}.dropdown-item.logout{color:#ef4444}.dropdown-item.logout:hover{background:#ef44441a}.dropdown-item.logout svg{color:#ef4444}.nav-icon-link{position:relative;display:flex;align-items:center;justify-content:center;width:36px;height:36px;color:var(--text-secondary, #CBD5E1);border-radius:var(--radius-md, 10px);transition:all var(--transition-fast, .15s)}.nav-icon-link:hover,.nav-icon-link.active{color:var(--text-primary, #F1F5F9);background:var(--bg-subtle, #334155)}.nav-unread-badge{position:absolute;top:-2px;right:-4px;min-width:18px;height:18px;border-radius:var(--radius-full, 9999px);background:var(--color-accent, #3B82F6);color:var(--text-primary);font-size:.75rem;font-weight:700;display:flex;align-items:center;justify-content:center;padding:0 4px;border:2px solid var(--bg-main);line-height:1}.menu-toggle{display:none;flex-direction:column;justify-content:center;align-items:center;width:42px;height:42px;background:none;border:none;cursor:pointer;padding:0;z-index:1001;border-radius:var(--radius-md, 10px);transition:background var(--transition-fast, .15s)}.menu-toggle:hover{background:var(--bg-subtle, #334155)}.hamburger{position:relative;width:22px;height:2px;background:var(--text-primary, #F1F5F9);transition:all .3s ease;border-radius:2px}.hamburger:before,.hamburger:after{content:"";position:absolute;left:0;width:22px;height:2px;background:var(--text-primary, #F1F5F9);transition:all .3s ease;border-radius:2px}.hamburger:before{top:-7px}.hamburger:after{top:7px}.menu-toggle.open .hamburger{background:transparent}.menu-toggle.open .hamburger:before{top:0;transform:rotate(45deg)}.menu-toggle.open .hamburger:after{top:0;transform:rotate(-45deg)}@media(max-width:768px){.navbar{height:60px}.navbar-brand-name{font-size:1.5rem}.navbar-brand-sub{font-size:.75rem}.menu-toggle{display:flex}.navbar-links{position:fixed;top:60px;left:0;right:0;height:calc(100vh - 60px);height:calc(100dvh - 60px);background:var(--bg-main);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);flex-direction:column;align-items:stretch;padding:1.25rem;gap:0;transform:translate(100%);opacity:0;transition:all .3s ease;pointer-events:none;overflow-y:auto}.navbar-links.open{transform:translate(0);opacity:1;pointer-events:auto}.nav-link{padding:.875rem 0;font-size:1.125rem;border-bottom:1px solid var(--border-light, #334155)}.nav-link.active:after{display:none}.nav-link.active{color:var(--color-accent, #3B82F6);font-weight:600}.nav-dropdown{width:100%}.nav-dropdown-trigger{width:100%;padding:.875rem 0;font-size:1.125rem;border-bottom:1px solid var(--border-light, #334155);justify-content:space-between}.nav-dropdown-menu{position:static;transform:none;margin:0;padding:0 0 0 1rem;background:transparent;border:none;box-shadow:none;animation:none;border-bottom:1px solid var(--border-light, #334155)}.nav-dropdown-item{padding:.75rem 0;font-size:1.125rem}.nav-cta{margin-top:.5rem;width:100%;text-align:center;justify-content:center;padding:.75rem!important;border-radius:var(--radius-md, 10px)}.navbar-links .btn{margin-top:.75rem;width:100%;justify-content:center;padding:.875rem;font-size:1.125rem;border-radius:var(--radius-md, 10px)}.btn-logout{margin-top:.375rem}.nav-icon-link{width:100%;height:auto;padding:.875rem 0;justify-content:flex-start;gap:.625rem;border-bottom:1px solid var(--border-light, #334155);border-radius:0}.nav-icon-link:after{content:"쪽지함";font-size:1.125rem;font-weight:500}.nav-unread-badge{position:static;border:none;min-width:20px;height:20px;font-size:.75rem}.profile-dropdown{width:100%;margin-top:.75rem;padding-top:.75rem;border-top:1px solid var(--border-light, #334155)}.profile-dropdown-trigger{width:100%;padding:.625rem .75rem;border:1px solid var(--border-light, #334155);border-radius:var(--radius-md, 10px)}.profile-name{flex:1;max-width:none;text-align:left}.profile-dropdown-menu{position:static;margin-top:.375rem;box-shadow:none;border:1px solid var(--border-light, #334155);animation:none}.dropdown-item{padding:.75rem}}.footer{background:var(--bg-section-dark);padding:3rem 2rem;margin-top:auto}.footer-inner{max-width:1100px;margin:0 auto}.footer-columns{display:flex;gap:3rem;margin-bottom:2rem}.footer-brand{flex:1.2}.footer-logo{display:inline-flex;align-items:center;gap:.5rem;font-size:1.5rem;font-weight:400;color:var(--text-primary);text-decoration:none;letter-spacing:-.02em}.footer-logo-icon{width:28px;height:28px;object-fit:contain}.footer-logo-text{font-weight:700;color:var(--text-primary)}.footer-tagline{margin:.5rem 0 0;font-size:1rem;color:var(--text-tertiary);line-height:1.5}.footer-col{flex:1}.footer-col-title{font-size:1rem;font-weight:600;color:var(--text-primary);margin:0 0 .75rem}.footer-links{display:flex;flex-direction:column;gap:.5rem}.footer-links a,.footer-contact{font-size:1rem;color:var(--text-tertiary);text-decoration:none;line-height:1.5;transition:color .15s ease}.footer-links a:hover{color:#3b82f6}.footer-contact{cursor:default}.footer-bottom{border-top:1px solid var(--bg-card);padding-top:1.5rem;text-align:center}.footer-copyright{font-size:.9rem;color:#64748b;margin:0}@media(max-width:768px){.footer{padding:2rem 1.25rem}.footer-columns{flex-direction:column;gap:2rem}.footer-bottom{padding-top:1.25rem}}.session-warning-overlay{position:fixed;inset:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:10001}.session-warning-dialog{background:var(--bg-card);border-radius:20px;padding:2rem;text-align:center;max-width:380px;width:calc(100% - 2rem);box-shadow:var(--shadow-xl)}.session-warning-icon{font-size:2.5rem;margin-bottom:.75rem}.session-warning-dialog h3{color:var(--text-primary);font-size:1.15rem;margin:0}.session-warning-dialog p{color:var(--text-secondary);margin-top:.5rem;font-size:.9rem}.session-warning-sub{margin-bottom:0}.session-warning-actions{display:flex;gap:.75rem;margin-top:1.5rem;justify-content:center}.session-warning-btn{padding:.6rem 1.5rem;border-radius:10px;font-weight:600;border:none;cursor:pointer;font-size:.875rem;transition:opacity .2s}.session-warning-btn:hover{opacity:.85}.session-warning-btn.logout{background:var(--bg-subtle);color:var(--text-primary)}.session-warning-btn.extend{background:var(--color-primary);color:#fff}[data-theme=light] .session-warning-overlay{background:#00000073}[data-theme=light] .session-warning-dialog{box-shadow:0 8px 32px #0000001f}