@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css");:root{--bg-base:#020617;--bg-gradient-start:#061026;--bg-gradient-end:#0e2a5c;--neon-blue:#3b82f6;--neon-cyan:#06b6d4;--neon-purple:#8b5cf6;--glow-blue:rgba(59,130,246,.4);--glow-cyan:rgba(6,182,212,.3);--text-primary:#fff;--text-secondary:hsla(0,0%,100%,.7);--text-tertiary:hsla(0,0%,100%,.4);--gold:#fde047;--gold-glow:rgba(253,224,71,.3);--glass-bg:rgba(20,30,60,.4);--glass-border:hsla(0,0%,100%,.08);--glass-highlight:hsla(0,0%,100%,.03);--glass-blur:blur(16px);--safe-top:env(safe-area-inset-top,20px);--safe-bottom:env(safe-area-inset-bottom,20px);--nav-height:72px;--radius-sm:8px;--radius-md:12px;--radius-lg:18px;--radius-xl:24px;--radius-full:9999px;--transition:all 0.3s cubic-bezier(0.4,0,0.2,1);--transition-bounce:all 0.4s cubic-bezier(0.34,1.56,0.64,1)}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}a{text-decoration:none;color:inherit}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:Pretendard,-apple-system,BlinkMacSystemFont,system-ui,Roboto,sans-serif;background-color:var(--bg-base);color:var(--text-primary);-webkit-font-smoothing:antialiased}.mobile-container,body{min-height:100vh;min-height:100dvh;overflow-x:hidden}.mobile-container{width:100%;max-width:100%;margin:0 auto;position:relative;overflow-y:auto;background:linear-gradient(145deg,var(--bg-gradient-start),var(--bg-gradient-end))}.bg-glow-1,.bg-glow-2,.bg-glow-3{position:absolute;border-radius:50%;filter:blur(80px);opacity:.5;pointer-events:none;z-index:0}.bg-glow-1{top:-10%;left:-20%;width:70vw;height:70vw;max-width:400px;max-height:400px;background:var(--glow-blue);animation:float 15s ease-in-out infinite alternate}.bg-glow-2{bottom:10%;right:-20%;width:80vw;height:80vw;max-width:500px;max-height:500px;background:var(--glow-cyan);animation:float 20s ease-in-out infinite alternate-reverse}.bg-glow-3{top:40%;left:20%;width:50vw;height:50vw;max-width:300px;max-height:300px;background:rgba(139,92,246,.2);animation:pulseGlow 10s ease-in-out infinite alternate}@keyframes float{0%{transform:translate(0) scale(1)}50%{transform:translate(5%,10%) scale(1.1)}to{transform:translate(-5%,-5%) scale(.95)}}@keyframes pulseGlow{0%{opacity:.3;transform:scale(.9)}to{opacity:.6;transform:scale(1.2)}}.wave-overlay{position:absolute;inset:0;background-image:radial-gradient(ellipse at 50% 120%,rgba(59,130,246,.15) 0,transparent 60%),repeating-linear-gradient(45deg,hsla(0,0%,100%,.01),hsla(0,0%,100%,.01) 1px,transparent 0,transparent 10px);opacity:.8;pointer-events:none;z-index:0}.page-content{position:relative;z-index:10;padding-top:calc(var(--safe-top) + 64px);padding-bottom:calc(var(--nav-height) + var(--safe-bottom) + 24px);min-height:100vh;min-height:100dvh}.app-header{position:fixed;top:0;left:50%;transform:translateX(-50%);width:100%;max-width:1200px;z-index:100;background:rgba(4,10,25,.6);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid hsla(0,0%,100%,.05);padding:calc(var(--safe-top) + 12px) 20px 14px;gap:16px;box-shadow:0 4px 30px rgba(0,0,0,.1)}.app-header,.header-back-btn{display:flex;align-items:center}.header-back-btn{background:hsla(0,0%,100%,.05);border:1px solid hsla(0,0%,100%,.1);border-radius:50%;width:36px;height:36px;color:var(--text-primary);cursor:pointer;justify-content:center;transition:var(--transition-bounce)}.header-back-btn:active{transform:scale(.9);background:hsla(0,0%,100%,.1)}.header-title{font-size:24px;flex:1 1}.header-logo,.header-title{font-weight:800;letter-spacing:-.5px}.header-logo{font-size:14px;background:linear-gradient(135deg,#60a5fa,#3b82f6);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.bottom-nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:1200px;z-index:100;background:rgba(2,6,23,.75);backdrop-filter:blur(30px) saturate(150%);-webkit-backdrop-filter:blur(30px) saturate(150%);border-top:1px solid hsla(0,0%,100%,.08);padding-bottom:var(--safe-bottom);box-shadow:0 -10px 40px rgba(0,0,0,.2)}.bottom-nav,.nav-item{display:flex;align-items:center}.nav-item{flex:1 1;flex-direction:column;gap:5px;padding:14px 4px 10px;cursor:pointer;background:none;border:none;color:var(--text-tertiary);text-decoration:none;position:relative}.nav-item,.nav-item:before{transition:var(--transition-bounce)}.nav-item:before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);width:24px;height:3px;background:var(--neon-cyan);border-radius:0 0 4px 4px;opacity:0;box-shadow:0 2px 10px var(--glow-cyan)}.nav-item.active{color:var(--neon-cyan);transform:translateY(-2px)}.nav-item.active:before{transform:translateX(-50%) scaleX(1);opacity:1}.nav-item span{font-size:11px;font-weight:600;letter-spacing:-.2px}.nav-icon{width:24px;height:24px;transition:transform .3s cubic-bezier(.34,1.56,.64,1)}.nav-item.active .nav-icon{transform:scale(1.15);filter:drop-shadow(0 0 8px rgba(6,182,212,.5))}.card-glass{background:linear-gradient(135deg,rgba(30,45,90,.5),rgba(10,20,40,.6));backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius-xl);padding:24px;box-shadow:0 8px 32px rgba(0,0,0,.2),inset 0 1px 0 var(--glass-highlight);transition:var(--transition);position:relative;overflow:hidden}.card-glass:before{content:"";position:absolute;top:0;left:-100%;width:50%;height:100%;background:linear-gradient(90deg,transparent,hsla(0,0%,100%,.05),transparent);transform:skewX(-20deg);animation:shimmer 6s infinite}@keyframes shimmer{0%{left:-100%}20%{left:200%}to{left:200%}}.btn-primary{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:16px 24px;background:linear-gradient(135deg,#2563eb,#0ea5e9);color:#fff;border:none;border-radius:var(--radius-xl);font-size:16px;font-weight:700;font-family:Pretendard,sans-serif;letter-spacing:-.3px;cursor:pointer;transition:var(--transition-bounce);position:relative;overflow:hidden;box-shadow:0 8px 25px rgba(37,99,235,.4),inset 0 2px 0 hsla(0,0%,100%,.2)}.btn-primary:active{transform:scale(.96) translateY(2px);box-shadow:0 4px 15px rgba(37,99,235,.3)}.btn-secondary{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:16px 24px;background:hsla(0,0%,100%,.05);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--text-primary);border:1px solid hsla(0,0%,100%,.15);border-radius:var(--radius-xl);font-size:16px;font-weight:600;font-family:Pretendard,sans-serif;cursor:pointer;transition:var(--transition-bounce)}.btn-secondary:active{background:hsla(0,0%,100%,.1);transform:scale(.96)}.form-group{margin-bottom:20px}.form-label{display:block;font-size:14px;font-weight:600;color:var(--text-secondary);margin-bottom:8px;letter-spacing:-.2px}.form-input{width:100%;padding:16px 18px;background:rgba(15,25,45,.6);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid hsla(0,0%,100%,.1);border-radius:var(--radius-lg);color:var(--text-primary);font-size:16px;font-family:Pretendard,sans-serif;transition:var(--transition);outline:none;-webkit-appearance:none;box-shadow:inset 0 2px 4px rgba(0,0,0,.2)}.form-input:focus{border-color:var(--neon-blue);background:rgba(20,35,60,.8);box-shadow:0 0 0 4px rgba(59,130,246,.15),inset 0 2px 4px rgba(0,0,0,.1)}.form-select{width:100%;padding:16px 18px;background:rgba(15,25,45,.6);border:1px solid hsla(0,0%,100%,.1);border-radius:var(--radius-lg);color:var(--text-primary);font-size:16px;font-family:Pretendard,sans-serif;outline:none;-webkit-appearance:none;cursor:pointer}.section-header{padding:24px 20px 16px}.section-title{font-size:24px;font-weight:800;letter-spacing:-.5px;background:linear-gradient(135deg,#fff,#93c5fd);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.section-subtitle{font-size:14px;color:var(--text-tertiary);margin-top:6px;font-weight:500}.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--radius-full);font-size:12px;font-weight:700;letter-spacing:-.1px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.badge-blue{background:rgba(59,130,246,.15);color:#93c5fd;border:1px solid rgba(59,130,246,.3);box-shadow:0 0 10px rgba(59,130,246,.2)}.badge-gold{background:rgba(234,179,8,.15);color:var(--gold);border:1px solid rgba(234,179,8,.3);box-shadow:0 0 10px rgba(234,179,8,.2)}.fade-in-up{animation:fadeInUp .6s cubic-bezier(.2,.8,.2,1) forwards;opacity:0;transform:translateY(20px)}.fade-delay-1{animation-delay:.1s}.fade-delay-2{animation-delay:.2s}.fade-delay-3{animation-delay:.3s}@keyframes fadeInUp{to{opacity:1;transform:translateY(0)}}.glow-text{text-shadow:0 0 15px hsla(0,0%,100%,.3)}.spinner{width:24px;height:24px;border:3px solid hsla(0,0%,100%,.1);border-top:3px solid var(--neon-cyan);border-radius:50%;animation:spin .8s cubic-bezier(.4,0,.2,1) infinite}@keyframes spin{to{transform:rotate(1turn)}}@media (min-width:768px){.page-content{max-width:1200px;margin:0 auto;padding-left:40px;padding-right:40px}.grid-responsive{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:24px;gap:24px}.grid-responsive-3{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:24px;gap:24px}.bottom-nav,.hide-on-desktop{display:none!important}.nav-link-desktop{color:var(--text-tertiary);text-decoration:none;font-size:15px;font-weight:600;transition:var(--transition)}.nav-link-desktop:hover{color:var(--neon-cyan);text-shadow:0 0 10px var(--glow-cyan)}}@media (max-width:767px){.show-on-desktop{display:none!important}}@media (min-width:1024px){.grid-responsive{grid-template-columns:repeat(3,1fr)}}::-webkit-scrollbar{display:none}.hero-container{position:relative;width:100%;min-height:440px;display:flex;flex-direction:column;justify-content:flex-end;padding:24px 20px 48px;background:linear-gradient(180deg,rgba(15,23,42,.4) 0,rgba(15,23,42,.9) 80%,var(--bg-primary) 100%);z-index:10;overflow:hidden}@media (max-width:767px){.hero-container{min-height:330px;padding-bottom:24px}}.professor-hero-photo{position:absolute;top:0;right:25px;width:100%;height:100%;background-image:url(/professor-transparent.png);background-size:contain;background-position:100% 100%;background-repeat:no-repeat;z-index:-1;-webkit-mask-image:linear-gradient(270deg,#000 30%,transparent 80%),linear-gradient(180deg,#000 70%,transparent);mask-image:linear-gradient(270deg,#000 30%,transparent 80%),linear-gradient(180deg,#000 70%,transparent)}@media (max-width:767px){.professor-hero-photo{right:5px;background-size:50%;background-position:right 5% bottom;opacity:.6}}.hero-content-text{flex:1 1;padding-bottom:0;position:relative;z-index:20}@media (max-width:767px){.hero-content-text{transform:translateY(-20px)}}