:root {
    --green: #08745f;
    --green-dark: #075b4c;
    --green-pale: #eaf6f3;
    --text: #17201d;
    --muted: #707a77;
    --line: #dce4e1;
    --error: #c43f3f;
}

* { box-sizing: border-box; }

body {
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    background: #f8fbfa;
    font-family: "Pretendard", "Noto Sans KR", "Malgun Gothic", sans-serif;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }

.skip-link {
    position: fixed;
    top: -60px;
    left: 20px;
    z-index: 10;
    padding: 10px 16px;
    color: #fff;
    background: var(--green);
    border-radius: 7px;
}
.skip-link:focus { top: 12px; }

.login-page {
    width: min(560px, calc(100% - 32px));
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    padding: 44px 0 36px;
}

.login-brand {
    display: inline-flex;
    align-items: center;
    gap: 13px;
    margin-bottom: 32px;
    color: var(--green);
    font-size: 31px;
    font-weight: 900;
    letter-spacing: -.055em;
}
.brand-symbol { width: 49px; height: 49px; display: grid; place-items: center; }
.brand-symbol svg { width: 49px; fill: var(--green); stroke: var(--green); stroke-width: 3; stroke-linecap: round; }
.brand-symbol .white { fill: #fff; stroke: none; }

.login-card {
    width: 100%;
    padding: 42px 48px 46px;
    background: #fff;
    border: 1px solid #dce3e0;
    border-radius: 22px;
    box-shadow: 0 14px 38px rgba(28, 75, 62, .07);
}

.login-heading { margin-bottom: 27px; text-align: center; }
.login-heading p { margin: 0 0 6px; color: var(--green); font-size: 12px; font-weight: 900; letter-spacing: .16em; }
.login-heading h1 { margin: 0; font-size: 30px; letter-spacing: -.05em; }
.login-heading span { display: block; margin-top: 9px; color: var(--muted); font-size: 13px; }

.alert {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: 9px;
    font-size: 13px;
    line-height: 1.5;
}
.alert-error { color: #9e2f2f; background: #fff2f2; border: 1px solid #f0caca; }

.credential-box {
    padding: 6px 20px;
    border: 1px solid var(--line);
    border-radius: 14px;
    transition: border-color .2s, box-shadow .2s;
}
.credential-box:focus-within { border-color: var(--green); box-shadow: 0 0 0 3px rgba(8, 116, 95, .09); }
.login-field { padding: 13px 0 12px; }
.login-field + .login-field { border-top: 1px solid var(--line); }
.login-field label { display: block; margin-bottom: 4px; color: var(--muted); font-size: 12px; }
.input-wrap { position: relative; }
.login-field input {
    width: 100%;
    height: 30px;
    padding: 0 38px 0 0;
    color: var(--text);
    background: transparent;
    border: 0;
    outline: 0;
    font-size: 16px;
    font-weight: 600;
}
.login-field input::placeholder { color: #acb4b1; font-weight: 400; }
.input-icon {
    position: absolute;
    top: 50%;
    right: 0;
    width: 30px;
    height: 30px;
    display: grid;
    place-items: center;
    transform: translateY(-50%);
    padding: 0;
    color: #8b9491;
    background: transparent;
    border: 0;
    cursor: pointer;
}
.clear-button { font-size: 24px; line-height: 1; }
.password-button svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.password-button .eye-open { display: none; }
.password-button.is-visible .eye-open { display: block; }
.password-button.is-visible .eye-closed { display: none; }

.remember-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 20px 2px 18px;
    color: #3d4744;
    font-size: 13px;
    cursor: pointer;
}
.remember-option input { position: absolute; opacity: 0; pointer-events: none; }
.checkmark {
    width: 19px;
    height: 19px;
    display: grid;
    place-items: center;
    border: 1px solid #aeb8b5;
    border-radius: 50%;
}
.remember-option input:checked + .checkmark { background: var(--green); border-color: var(--green); }
.remember-option input:checked + .checkmark::after { content: "✓"; color: #fff; font-size: 12px; font-weight: 800; }
.remember-option input:focus-visible + .checkmark { outline: 3px solid rgba(8,116,95,.2); }

.login-button {
    width: 100%;
    height: 54px;
    color: #fff;
    background: var(--green);
    border: 0;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 800;
    cursor: pointer;
    transition: background .2s, transform .2s;
}
.login-button:hover { background: var(--green-dark); transform: translateY(-1px); }
.login-button:disabled { color: #dcebe6; background: #5b9183; cursor: wait; transform: none; }

.account-links { display: flex; align-items: center; gap: 12px; margin-top: 24px; color: #6f7875; font-size: 13px; }
.account-links .divider { width: 1px; height: 12px; background: #cdd5d2; }
.account-links a { color: var(--green); font-weight: 800; }
.account-links .unavailable { color: #929a98; cursor: default; }
.home-link { margin-top: 17px; color: #66706d; font-size: 13px; }
.home-link:hover { color: var(--green); text-decoration: underline; }

@media (max-width: 600px) {
    .login-page { justify-content: flex-start; padding-top: 32px; }
    .login-brand { margin-bottom: 25px; font-size: 24px; }
    .brand-symbol, .brand-symbol svg { width: 41px; height: 41px; }
    .login-card { padding: 32px 24px 36px; border-radius: 17px; }
    .login-heading h1 { font-size: 27px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition: none !important; }
}