@charset "utf-8";
:root { color-scheme: light; --ink: #172a3a; --muted: #73808b; --accent: #244d69; --paper: #fafbf8; }
* { box-sizing: border-box; }
body { margin: 0; font-family: 'SUIT', 'Malgun Gothic', sans-serif; color: var(--ink); background: var(--paper); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button, a, input { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid #6a9abc; outline-offset: 4px; }
.login-layout { display: grid; grid-template-columns: 47% 53%; min-height: 100svh; }
.brand-panel { position: relative; display: flex; flex-direction: column; overflow: hidden; padding: 42px 10% 32px; color: #f8faf8; background: radial-gradient(ellipse at 95% 77%, #29434b 0, transparent 55%), #101e2c; }
.brand-panel::after { content: ''; position: absolute; inset: 0; opacity: .035; pointer-events: none; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.95' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='white' filter='url(%23n)' opacity='.8' d='M0 0h180v180H0z'/%3E%3C/svg%3E"); }
.brand { position: relative; z-index: 1; align-self: flex-start; mix-blend-mode: screen; }
.brand img { display: block; width: 154px; height: auto; filter: invert(1); mix-blend-mode: screen; }
.brand-story { position: relative; z-index: 1; margin: auto 0; padding: 58px 0 54px; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 24px; color: #b8c9be; font-size: 12px; font-weight: 600; letter-spacing: 2px; }
.eyebrow > span { width: 5px; height: 5px; border-radius: 50%; background: #bad5b6; }
h1 { margin: 0; font-size: clamp(32px, 3.05vw, 49px); font-weight: 600; line-height: 1.45; letter-spacing: -2px; }
h1 em { color: #b7d2b3; font-style: normal; }
.brand-description { margin: 22px 0 0; color: #a3b0bd; font-size: 16px; line-height: 1.95; letter-spacing: -.3px; }
.learning-visual { position: relative; max-width: 420px; margin-top: 47px; padding: 0 10px 24px 0; }
.visual-orbit { position: absolute; width: 380px; height: 380px; border: 1px solid #a6c4bd12; border-radius: 50%; z-index: -1; }
.orbit-one { top: -55px; right: -85px; }
.orbit-two { top: -80px; right: -110px; width: 430px; height: 430px; }
.chart-card { position: relative; overflow: hidden; background: linear-gradient(125deg, #2b3d4ade, #1b2d3acc); border: 1px solid #ffffff1a; border-radius: 14px; box-shadow: 0 22px 55px #050e1633; transform: rotate(-3deg); padding: 21px 24px 0; }
.chart-topline { display: flex; justify-content: space-between; gap: 10px; color: #b5c3c9; font-size: 12px; letter-spacing: 1.4px; }
.chart-topline > span:first-child { display: flex; align-items: center; gap: 7px; }
.chart-topline i { width: 5px; height: 5px; background: #acc5ac; border-radius: 50%; }
.chart-caption { margin-top: 24px; font-size: 19px; line-height: 1.65; font-weight: 400; letter-spacing: -.3px; color: #dbe3e7; }
.chart-caption strong { font-weight: 600; }
.chart-art { position: relative; height: 107px; margin-top: 16px; }
.chart-grid { position: absolute; inset: 0; background: repeating-linear-gradient(0deg, transparent 0 31px, #dce9e909 31px 32px); }
.chart-art > svg { position: absolute; inset: 6px 0 0; width: 100%; height: 94px; }
.chart-crosshair { position: absolute; width: 1px; top: 0; bottom: 5px; left: 69%; border-left: 1px dashed #bed4d332; }
.chart-note { position: absolute; bottom: 9px; left: 0; font-size: 12px; letter-spacing: 1.4px; color: #bdcbd56b; }
.chart-bottomline { display: flex; justify-content: space-between; padding: 12px 0 15px; border-top: 1px solid #ffffff0e; color: #b4c4cc; font-size: 12px; letter-spacing: 1.6px; }
.chart-bottomline b { color: #bfd8b7; font-size: 15px; margin-left: 6px; }
.lesson-note { position: absolute; right: -22px; bottom: 0; display: flex; align-items: center; gap: 12px; padding: 15px 19px; border-radius: 10px; background: #e9eee4; color: #263a3a; box-shadow: 0 12px 25px #09172430; transform: rotate(2deg); }
.lesson-icon { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; background: #d4dece; color: #49654c; font-size: 25px; }
.lesson-note strong { display: block; font-size: 13px; font-weight: 700; }
.lesson-note div > span { display: block; margin-top: 5px; font-size: 12px; color: #728073; }
.brand-footer { display: flex; justify-content: space-between; gap: 20px; position: relative; z-index: 1; padding-top: 20px; border-top: 1px solid #ffffff14; font-size: 12px; letter-spacing: 1.8px; color: #a3b2be; }
.page-mark { color: #a8bbb6; letter-spacing: 1px; }
.access-panel { display: flex; flex-direction: column; padding: 39px 9% 30px; min-width: 0; }
.access-header { display: flex; justify-content: flex-end; }
.home-link { display: inline-flex; align-items: center; gap: 13px; color: #6b7881; font-size: 14px; }
.home-link span { font-size: 20px; color: #2d414f; }
.home-link:hover { color: var(--accent); }
.mobile-brand { display: none; }
.login-content { width: 100%; max-width: 390px; align-self: center; margin: auto 0; padding: 42px 0; }
.welcome-icon { display: grid; place-items: center; height: 47px; width: 47px; border: 1px solid #dfe6dc; background: #f0f3ec; border-radius: 14px; color: #47604f; margin-bottom: 24px; }
.welcome-icon svg { width: 26px; height: 26px; }
.form-eyebrow { font-size: 12px; font-weight: 700; letter-spacing: 2.4px; color: #7b8e7a; margin: 0 0 12px; }
h2 { margin: 0; font-size: 32px; line-height: 1.4; font-weight: 750; letter-spacing: -1.3px; }
.form-description { font-size: 16px; line-height: 1.7; color: var(--muted); margin: 12px 0 33px; letter-spacing: -.3px; }
.field-group + .field-group { margin-top: 21px; }
.field-group > label { display: inline-block; margin-bottom: 9px; font-size: 14px; font-weight: 700; }
.input-wrap { display: flex; align-items: center; height: 54px; background: #fff; border: 1px solid #dce2e2; border-radius: 8px; transition: border-color .18s, box-shadow .18s; }
.input-wrap:focus-within { border-color: #50748d; box-shadow: 0 0 0 3px #244d690c; }
.input-wrap > svg { width: 18px; height: 18px; flex-shrink: 0; margin-left: 17px; stroke: #96a2ab; stroke-width: 1.5; stroke-linecap: round; }
.input-wrap input { width: 100%; min-width: 0; height: 100%; border: 0; outline: none; background: transparent; padding: 0 13px; font-size: 16px; color: var(--ink); }
.input-wrap input:focus-visible { outline: none; }
.input-wrap input::placeholder { color: #9ba5ad; font-size: 15px; }
.password-toggle { align-self: stretch; display: grid; place-items: center; width: 48px; flex-shrink: 0; background: none; border: 0; border-radius: 6px; color: #8d9aa4; }
.password-toggle:hover { color: var(--accent); }
.password-toggle svg { width: 19px; height: 19px; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; }
.eye-slash { display: none; }
.password-toggle[aria-pressed="true"] .eye-slash { display: block; }
.form-options { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 18px 0 27px; }
.remember-id { display: inline-flex; align-items: center; gap: 7px; cursor: pointer; font-size: 14px; color: #596975; white-space: nowrap; }
.remember-id input { margin: 0; width: 15px; height: 15px; accent-color: var(--accent); cursor: pointer; }
.form-options > a { font-size: 13px; color: #7a858d; text-underline-offset: 4px; }
.form-options > a:hover { text-decoration: underline; color: var(--accent); }
.submit-button { width: 100%; min-height: 53px; display: flex; align-items: center; justify-content: center; position: relative; border: 1px solid var(--accent); border-radius: 8px; color: #fff; background: var(--accent); font-size: 16px; font-weight: 650; box-shadow: 0 5px 13px #244d6912; transition: background .18s, transform .18s; }
.submit-button:hover:not(:disabled) { background: #183d58; transform: translateY(-1px); }
.submit-button:active:not(:disabled) { transform: translateY(0); }
.submit-button:disabled { cursor: wait; opacity: .75; }
.submit-arrow { position: absolute; right: 21px; font-size: 23px; font-weight: 400; }
.spinner { display: none; position: absolute; right: 22px; width: 17px; height: 17px; border: 2px solid #ffffff50; border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; }
.submit-button[aria-busy="true"] .spinner { display: block; }
.submit-button[aria-busy="true"] .submit-arrow { display: none; }
.form-error { margin: -10px 0 18px; padding: 12px 14px; background: #fff0ed; border: 1px solid #f1d7d0; border-radius: 7px; color: #9c4433; font-size: 14px; line-height: 1.65; overflow-wrap: anywhere; }
.form-status { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.signup-prompt { display: flex; justify-content: center; align-items: center; gap: 10px; margin-top: 26px; font-size: 14px; color: #7f8992; }
.signup-prompt > a { color: #2c4a5e; font-weight: 750; }
.signup-prompt > a:hover { text-decoration: underline; text-underline-offset: 4px; }
.signup-prompt a span { margin-left: 3px; }
.member-note { display: flex; gap: 10px; justify-content: center; border-top: 1px solid #e6eae5; margin-top: 35px; padding-top: 23px; color: #87928e; }
.member-note svg { flex-shrink: 0; width: 17px; height: 17px; stroke: #819686; stroke-width: 1.4; margin-top: 3px; }
.member-note p { margin: 0; font-size: 13px; line-height: 1.9; }
.member-note p span { color: #6c7970; }
.access-footer { display: flex; justify-content: space-between; gap: 10px; font-size: 12px; color: #6d7a72; letter-spacing: .4px; }
.access-footer > span:last-child { font-size: 12px; letter-spacing: 0; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (min-width: 1600px) { .brand-panel { padding-left: 13%; padding-right: 13%; } .login-content { max-width: 410px; } }
@media (max-width: 1100px) { .brand-panel { padding: 34px 8% 28px; } .access-panel { padding: 34px 9% 28px; } h1 { font-size: 34px; } .brand-description { font-size: 14px; } .lesson-note { right: -10px; padding: 12px; } .brand-footer { letter-spacing: .7px; font-size: 12px; } .chart-card { padding: 18px 19px 0; } .form-options > a { font-size: 12px; } }
@media (max-width: 800px) { .login-layout { display: block; } .brand-panel { display: none; } .access-panel { min-height: 100svh; padding: 27px 28px 24px; } .access-header { justify-content: space-between; align-items: center; } .mobile-brand { display: block; font-family: Georgia, serif; font-size: 19px; font-weight: 700; letter-spacing: 1px; } .mobile-brand span { font-size: 13px; font-weight: 400; letter-spacing: 1.5px; margin-left: 4px; } .home-link { font-size: 13px; gap: 8px; } .login-content { padding: 50px 0; max-width: 390px; } .welcome-icon { margin-bottom: 22px; } .access-footer { width: 100%; max-width: 440px; align-self: center; } .form-options > a { font-size: 13px; } }
@media (max-width: 380px) { .access-panel { padding: 23px 21px; } .home-link { font-size: 12px; gap: 4px; } .mobile-brand { font-size: 17px; } .mobile-brand span { font-size: 12px; } h2 { font-size: 29px; } .form-options > a { font-size: 12px; } .remember-id { font-size: 13px; } .signup-prompt { font-size: 13px; } .access-footer { font-size: 12px; } .access-footer > span:last-child { font-size: 12px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }