:root{--color-primary: #0f766e;--color-primary-dark: #0d5c56;--color-primary-light: #ccfbf1;--color-primary-alpha-35: rgb(15 118 110 / .35);--color-primary-alpha-12: rgb(15 118 110 / .12);--color-oa: var(--color-primary);--color-accent: #0369a1;--color-it: var(--color-accent);--color-it-bg: #e0f2fe;--color-other: #64748b;--color-white: #ffffff;--color-bg: #f8fafc;--color-surface: var(--color-white);--color-surface-elevated: #f1f5f9;--color-border: #e2e8f0;--color-text: #0f172a;--color-text-muted: var(--color-other);--color-header-scrolled: rgb(255 255 255 / .92);--color-on-primary: var(--color-white);--color-highlight-stat-bg: rgb(255 255 255 / .1);--color-highlight-stat-border: rgb(255 255 255 / .2);--color-highlight-quote-border: rgb(255 255 255 / .5);--shadow-sm: 0 1px 2px rgb(15 23 42 / .05);--shadow-md: 0 4px 12px rgb(15 23 42 / .08);--shadow-lg: 0 12px 40px rgb(15 23 42 / .1);--radius: 12px;--radius-lg: 16px;--radius-sm: 8px;--header-h: 64px;--max-w: 1080px;--font: "Noto Sans KR", system-ui, sans-serif;--font-mono: "JetBrains Mono", monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}body{font-family:var(--font);font-size:16px;line-height:1.7;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;display:block}.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px}.section{padding:80px 0}.section-title{font-size:1.75rem;font-weight:700;letter-spacing:-.02em;margin-bottom:8px}.section-desc{color:var(--color-text-muted);margin-bottom:40px;max-width:560px}.section--alt{background:var(--color-surface);border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border)}.section--highlight{background:linear-gradient(135deg,var(--color-primary-dark) 0%,var(--color-primary) 100%);color:var(--color-on-primary)}.section--highlight .section-title,.section--highlight .section-desc{color:var(--color-on-primary)}.section--highlight .section-desc{opacity:.85}.section--contact{padding-bottom:100px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.btn{padding:14px 24px;font-family:inherit;font-size:.95rem;font-weight:600;border-radius:var(--radius);cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s,border-color .15s,color .15s}.btn--primary{background:var(--color-primary);color:var(--color-on-primary);border:none;box-shadow:var(--shadow-md)}.btn--primary:hover{background:var(--color-primary-dark);transform:translateY(-1px)}.btn--secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn--secondary:hover{border-color:var(--color-primary);color:var(--color-primary)}.site-header{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--header-h);transition:background .2s,box-shadow .2s}.site-header--scrolled{background:var(--color-header-scrolled);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:var(--shadow-sm);border-bottom:1px solid var(--color-border)}.site-header__inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}.site-header__logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--color-text);text-decoration:none}.site-header__logo:hover{text-decoration:none}.site-header__logo-mark{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-sm);background:var(--color-primary);color:var(--color-on-primary);font-size:.75rem;font-family:var(--font-mono)}.site-header__nav{display:flex;gap:8px}.site-header__nav button{padding:8px 14px;border:none;background:transparent;font-family:inherit;font-size:.9rem;font-weight:500;color:var(--color-text-muted);border-radius:var(--radius-sm);cursor:pointer;transition:color .15s,background .15s}.site-header__nav button:hover{color:var(--color-primary);background:var(--color-primary-light)}.site-header__menu-btn{display:none;flex-direction:column;gap:5px;padding:8px;border:none;background:transparent;cursor:pointer}.site-header__menu-btn span{display:block;width:22px;height:2px;background:var(--color-text);border-radius:1px}.hero{min-height:100vh;display:flex;align-items:center;padding-top:var(--header-h);background:radial-gradient(ellipse 80% 50% at 50% -20%,var(--color-primary-alpha-12),transparent),var(--color-bg)}.hero__inner{display:grid;grid-template-columns:200px 1fr 260px;gap:40px;align-items:center;padding:48px 24px 80px}.hero__photo-wrap{margin:0;align-self:center}.hero__photo{width:100%;max-width:200px;aspect-ratio:4 / 5;object-fit:cover;object-position:center top;border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-lg);background:var(--color-surface)}.hero__badge{display:inline-block;font-family:var(--font-mono);font-size:.8rem;font-weight:500;color:var(--color-primary);background:var(--color-primary-light);padding:6px 12px;border-radius:999px;margin-bottom:20px}.hero__name{font-size:clamp(2.5rem,6vw,3.5rem);font-weight:700;letter-spacing:-.03em;line-height:1.2;margin-bottom:8px}.hero__role{font-size:1.35rem;font-weight:600;color:var(--color-primary);margin-bottom:16px}.hero__tagline{font-size:1.05rem;color:var(--color-text-muted);max-width:520px;margin-bottom:32px}.hero__actions{display:flex;flex-wrap:wrap;gap:12px}.hero__summary-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-lg)}.hero__summary-card dl div{padding:14px 0;border-bottom:1px solid var(--color-border)}.hero__summary-card dl div:last-child{border-bottom:none;padding-bottom:0}.hero__summary-card dl div:first-child{padding-top:0}.hero__summary-card dt{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-muted);margin-bottom:4px}.hero__summary-card dd{font-weight:600;font-size:.95rem}.about__grid{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;margin-bottom:32px}.about__motivation,.about__strengths{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:28px}.about__motivation h3,.about__strengths h3,.about__growth h3{font-size:1.1rem;margin-bottom:16px;color:var(--color-primary)}.about__motivation p{color:var(--color-text-muted);margin-bottom:12px}.about__motivation p:last-child{margin-bottom:0}.about__strengths ul{list-style:none}.about__strengths li{padding:14px 0;border-bottom:1px solid var(--color-border)}.about__strengths li:last-child{border-bottom:none;padding-bottom:0}.about__strengths strong{display:block;margin-bottom:4px}.about__strengths span{font-size:.9rem;color:var(--color-text-muted)}.about__growth{background:var(--color-surface-elevated);border-radius:var(--radius);padding:24px 28px}.about__growth p{font-size:.95rem;color:var(--color-text-muted);margin-bottom:8px}.about__growth p:last-child{margin-bottom:0}.skills__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.skill-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:28px;transition:box-shadow .2s,border-color .2s}.skill-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md)}.skill-card h3{font-size:1rem;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--color-primary-light)}.skill-card ul{list-style:none}.skill-card li{position:relative;padding-left:18px;margin-bottom:10px;font-size:.9rem;color:var(--color-text-muted)}.skill-card li:before{content:"";position:absolute;left:0;top:.55em;width:6px;height:6px;border-radius:50%;background:var(--color-primary)}.experience__timeline{list-style:none;position:relative;padding-left:32px}.experience__timeline:before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--color-border)}.experience__item{position:relative;margin-bottom:28px}.experience__item:last-child{margin-bottom:0}.experience__marker{position:absolute;left:-32px;top:24px;width:16px;height:16px;border-radius:50%;background:var(--color-surface);border:3px solid var(--color-other);z-index:1}.experience__marker[data-type=oa]{border-color:var(--color-oa);background:var(--color-primary-light)}.experience__marker[data-type=it]{border-color:var(--color-it)}.experience-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px 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li:before{content:"–";position:absolute;left:0;color:var(--color-primary)}.highlights__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:40px}.highlight-stat{text-align:center;padding:28px 16px;background:var(--color-highlight-stat-bg);border:1px solid var(--color-highlight-stat-border);border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.highlight-stat__value{display:block;font-size:clamp(1.75rem,4vw,2.25rem);font-weight:700;font-family:var(--font-mono);margin-bottom:8px}.highlight-stat__label{font-size:.85rem;opacity:.9;line-height:1.4}.highlights__quote{border-left:4px solid var(--color-highlight-quote-border);padding-left:24px;margin:0}.highlights__quote p{font-size:.95rem;opacity:.92;margin-bottom:8px;font-style:italic}.highlights__quote p:last-child{margin-bottom:0}.education__grid{display:grid;grid-template-columns:1.4fr 1fr;gap:40px}.education__column h3{font-size:1rem;color:var(--color-primary);margin-bottom:20px}.education-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:20px 24px;margin-bottom:16px}.education-card__head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:4px}.education-card__head h4{font-size:1rem}.education-card__head span{font-size:.8rem;font-family:var(--font-mono);color:var(--color-text-muted);white-space:nowrap}.education-card__org{font-size:.9rem;color:var(--color-text-muted);margin-bottom:12px}.education-card ul{list-style:none;font-size:.88rem;color:var(--color-text-muted)}.education-card li{padding-left:14px;position:relative;margin-bottom:6px}.education-card li:before{content:"·";position:absolute;left:0;color:var(--color-primary);font-weight:700}.education__certs{list-style:none}.education__cert{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding:18px 0;border-bottom:1px 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.15s,background .15s}.contact__copy-btn:hover{border-color:var(--color-primary);background:var(--color-primary-light)}.contact__copy-btn:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.contact__copy-btn:active{transform:scale(.99)}.contact__copy-label{flex-shrink:0;font-size:.75rem;font-weight:600;color:var(--color-primary-dark);background:var(--color-primary-light);padding:4px 10px;border-radius:999px;white-space:nowrap}.contact__copy-value{font-size:clamp(.9rem,2.5vw,1.05rem);font-weight:600;color:var(--color-text);word-break:break-all}.contact__copy-hint{flex-shrink:0;font-size:.75rem;font-weight:500;color:var(--color-text-muted);padding:4px 8px;border:1px solid var(--color-border);border-radius:6px;background:var(--color-surface)}.contact__copy-btn:hover .contact__copy-hint{border-color:var(--color-primary);color:var(--color-primary)}.contact__placeholder{font-size:.9rem;color:var(--color-text-muted);background:var(--color-surface-elevated);padding:16px;border-radius:var(--radius);margin-bottom:24px}.contact__placeholder code{font-family:var(--font-mono);font-size:.85rem;color:var(--color-primary)}.contact__note{font-size:.8rem;color:var(--color-text-muted)}.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));z-index:200;display:flex;align-items:center;gap:10px;max-width:min(420px,calc(100vw - 32px));padding:14px 18px;background:var(--color-text);color:var(--color-on-primary);border-radius:var(--radius);box-shadow:var(--shadow-lg);transform:translate(-50%,120%);opacity:0;pointer-events:none;transition:transform .3s cubic-bezier(.22,1,.36,1),opacity .25s ease}.toast--visible{transform:translate(-50%);opacity:1}.toast__icon{display:flex;align-items:center;justify-content:center;width:24px;height:24px;flex-shrink:0;font-size:.85rem;font-weight:700;background:var(--color-primary);border-radius:50%}.toast__message{margin:0;font-size:.9rem;font-weight:500;line-height:1.4}.site-footer{padding:24px 0;border-top:1px solid var(--color-border);text-align:center}.site-footer p{font-size:.8rem;color:var(--color-text-muted)}@media(max-width:900px){.hero__inner{grid-template-columns:1fr;justify-items:center;text-align:center}.hero__photo-wrap{order:-1}.hero__photo{max-width:160px}.hero__content{display:flex;flex-direction:column;align-items:center}.hero__tagline{max-width:100%}.hero__actions{justify-content:center}.hero__summary-card{width:100%;max-width:400px}.skills__grid{grid-template-columns:1fr}}@media(max-width:768px){.section{padding:56px 0}.section-title{font-size:1.5rem}.about__grid,.education__grid{grid-template-columns:1fr}.highlights__grid{grid-template-columns:repeat(2,1fr)}.site-header__menu-btn{display:flex}.site-header__nav{position:fixed;top:var(--header-h);left:0;right:0;flex-direction:column;padding:16px 24px 24px;background:var(--color-surface);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-md);transform:translateY(-120%);opacity:0;pointer-events:none;transition:transform .25s,opacity .25s}.site-header__nav--open{transform:translateY(0);opacity:1;pointer-events:auto}.site-header__nav button{text-align:left;padding:12px 0;border-bottom:1px solid var(--color-border);border-radius:0}.site-header__nav button:last-child{border-bottom:none}.contact__box{padding:32px 20px}.contact__copy-btn{grid-template-columns:1fr auto;grid-template-rows:auto auto;gap:8px 12px;min-height:56px;padding:16px}.contact__copy-label{grid-column:1;grid-row:1;justify-self:start}.contact__copy-value{grid-column:1 / -1;grid-row:2;font-size:1rem}.contact__copy-hint{grid-column:2;grid-row:1;align-self:start}.toast{bottom:calc(16px + env(safe-area-inset-bottom,0px));max-width:calc(100vw - 24px);padding:12px 16px}.toast__message{font-size:.85rem}}@media(max-width:400px){.highlights__grid{grid-template-columns:1fr}}