:root {
    --tn-primary: #0e6259;
    --tn-primary-dark: #084d46;
    --tn-accent: #d7a24a;
    --tn-ink: #173231;
    --tn-muted: #526764;
    --tn-border: #d8e2df;
    --tn-cream: #f7f3e9;
    --tn-white: #ffffff;
}

* {
    box-sizing: border-box;
}

body {
    min-width: 320px;
    margin: 0;
    color: var(--tn-ink);
    background:
        radial-gradient(circle at 10% 10%, rgba(215, 162, 74, 0.18), transparent 32rem),
        linear-gradient(135deg, #eef7f4 0%, var(--tn-cream) 100%);
}

.main {
    min-height: 100vh;
    padding: 32px;
    display: grid;
    place-items: center;
}

body > footer {
    display: none;
}

.admin-login {
    width: min(1040px, 100%);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.8fr);
    overflow: hidden;
    border: 1px solid rgba(216, 226, 223, 0.9);
    border-radius: 28px;
    background: var(--tn-white);
    box-shadow: 0 30px 80px rgba(23, 50, 49, 0.16);
}

.admin-login__intro {
    min-height: 620px;
    padding: clamp(40px, 6vw, 72px);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: var(--tn-white);
    background:
        radial-gradient(circle at 82% 16%, rgba(255, 255, 255, 0.16), transparent 16rem),
        linear-gradient(145deg, var(--tn-primary) 0%, var(--tn-primary-dark) 100%);
}

.admin-login__brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: var(--tn-white);
    text-decoration: none;
}

.admin-login__brand:hover,
.admin-login__brand:focus {
    color: var(--tn-white);
}

.admin-login__mark {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.55);
    border-radius: 16px;
    font-weight: 800;
    letter-spacing: 0.04em;
    background: rgba(255, 255, 255, 0.12);
}

.admin-login__brand-text {
    display: grid;
    line-height: 1.1;
}

.admin-login__brand-text strong {
    font-size: 20px;
}

.admin-login__brand-text span {
    margin-top: 4px;
    font-size: 14px;
    opacity: 0.78;
}

.admin-login__intro-copy {
    max-width: 31rem;
}

.admin-login__eyebrow {
    margin: 0 0 14px;
    color: #b98227;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.admin-login__intro .admin-login__eyebrow {
    color: #f4dca7;
}

.admin-login__intro h1 {
    margin: 0 0 18px;
    color: var(--tn-white);
    font-size: clamp(36px, 5vw, 58px);
    line-height: 1.03;
    font-weight: 800;
}

.admin-login__intro p {
    margin: 0;
    color: rgba(255, 255, 255, 0.82);
    font-size: 17px;
    line-height: 1.7;
}

.admin-login__assurance {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 36px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

.admin-login__assurance::before {
    content: "✓";
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: var(--tn-primary-dark);
    background: #f4dca7;
    font-weight: 900;
}

.admin-login__form-panel {
    padding: clamp(38px, 6vw, 72px);
    display: flex;
    align-items: center;
}

.admin-login__card {
    width: 100%;
}

.admin-login__card h2 {
    margin: 0 0 10px;
    color: var(--tn-ink);
    font-size: 32px;
    font-weight: 800;
}

.admin-login__lead {
    margin: 0 0 30px;
    color: var(--tn-muted);
    line-height: 1.6;
}

.admin-login__card fieldset {
    margin: 0;
    padding: 0;
    border: 0;
}

.admin-login__card legend {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.admin-login__card .input {
    margin-bottom: 20px;
}

.admin-login__card label {
    margin-bottom: 8px;
    color: var(--tn-ink);
    font-weight: 700;
}

.admin-login__card input[type="email"],
.admin-login__card input[type="password"] {
    width: 100%;
    height: 52px;
    margin: 0;
    padding: 0 16px;
    border: 1px solid var(--tn-border);
    border-radius: 12px;
    color: var(--tn-ink);
    background: #fbfdfc;
    font-size: 16px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.admin-login__card input:focus {
    border-color: var(--tn-primary);
    outline: 0;
    background: var(--tn-white);
    box-shadow: 0 0 0 4px rgba(14, 98, 89, 0.13);
}

.admin-login__card .button,
.admin-login__card button[type="submit"] {
    width: 100%;
    min-height: 52px;
    margin: 8px 0 18px;
    padding: 12px 20px;
    border: 1px solid var(--tn-primary);
    border-radius: 12px;
    color: var(--tn-white);
    background: var(--tn-primary);
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 0.01em;
    text-transform: none;
}

.admin-login__card button[type="submit"]:hover,
.admin-login__card button[type="submit"]:focus {
    border-color: var(--tn-primary-dark);
    background: var(--tn-primary-dark);
}

.admin-login__links {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.admin-login__links a {
    color: var(--tn-primary);
    font-weight: 700;
    text-decoration: none;
}

.admin-login__links a:hover,
.admin-login__links a:focus {
    text-decoration: underline;
}

.admin-login__card .message {
    margin: 0 0 24px;
    padding: 14px 16px;
    border: 1px solid #ef9a96;
    border-radius: 12px;
    color: #8a211c;
    background: #fff0ef;
    line-height: 1.5;
}

.admin-login__card .error-message {
    margin-top: 7px;
    color: #a12822;
    font-size: 14px;
}

@media (max-width: 780px) {
    .main {
        padding: 18px;
    }

    .admin-login {
        grid-template-columns: 1fr;
        border-radius: 22px;
    }

    .admin-login__intro {
        min-height: auto;
        padding: 32px;
        gap: 42px;
    }

    .admin-login__intro h1 {
        font-size: 36px;
    }

    .admin-login__form-panel {
        padding: 36px 30px 42px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}