:root {
    --forest: #09251c;
    --forest-soft: #124331;
    --primary: #176044;
    --primary-hover: #104b35;
    --ink: #17231e;
    --muted: #65746d;
    --line: #d4dfd9;
    --canvas: #f4f7f5;
    --danger: #bd3e38;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }

body {
    margin: 0;
    color: var(--ink);
    background: var(--canvas);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
}

.login-shell { min-height: 100vh; display: grid; grid-template-columns: minmax(430px, 43%) 1fr; }

.brand-panel {
    position: relative;
    isolation: isolate;
    display: flex;
    min-height: 100vh;
    flex-direction: column;
    justify-content: space-between;
    padding: clamp(38px, 5vw, 72px);
    overflow: hidden;
    color: #fff;
    background:
        radial-gradient(circle at 15% 8%, rgba(70, 172, 116, .20), transparent 29%),
        linear-gradient(150deg, var(--forest), #0b3024 60%, #155139);
}

.brand-panel::before {
    position: absolute;
    top: -210px;
    right: -280px;
    z-index: -1;
    width: 600px;
    height: 600px;
    content: "";
    border: 1px solid rgba(255, 255, 255, .10);
    border-radius: 50%;
    box-shadow: 0 0 0 70px rgba(255, 255, 255, .035), 0 0 0 140px rgba(255, 255, 255, .022);
}

.brand-panel::after {
    position: absolute;
    bottom: -250px;
    left: -250px;
    z-index: -1;
    width: 500px;
    height: 500px;
    content: "";
    border: 1px solid rgba(94, 204, 145, .10);
    border-radius: 50%;
}

.brand-logo { width: min(285px, 72%); height: auto; }
.brand-content { max-width: 590px; margin: 58px 0; }

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 22px;
    padding: 7px 12px;
    color: #d9eee3;
    background: rgba(255, 255, 255, .065);
    border: 1px solid rgba(255, 255, 255, .13);
    border-radius: 999px;
    font-size: 11px;
    font-weight: 750;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.eyebrow::before {
    width: 7px;
    height: 7px;
    content: "";
    background: #66d397;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(102, 211, 151, .13);
}

.brand-content h1 { margin: 0; font-size: clamp(35px, 4vw, 54px); line-height: 1.12; letter-spacing: -.038em; }
.brand-content > p { max-width: 525px; margin: 21px 0 0; color: #b7cfc3; font-size: 15px; line-height: 1.75; }
.brand-panel small { color: #769488; }

.form-panel {
    position: relative;
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: 40px;
    background: linear-gradient(135deg, #f8faf9 0%, #f2f6f3 100%);
}

.form-panel::before {
    position: absolute;
    inset: 28px 30px auto auto;
    color: #99a8a1;
    content: "INTERNAL ACCESS";
    font-size: 10px;
    font-weight: 750;
    letter-spacing: .14em;
}

.form-wrap {
    width: min(430px, 100%);
    padding: clamp(28px, 4vw, 42px);
    background: rgba(255, 255, 255, .9);
    border: 1px solid #e0e8e3;
    border-radius: 16px;
    box-shadow: 0 18px 56px rgba(24, 52, 41, .08);
}

.mobile-logo { display: none; }
.form-wrap header { margin-bottom: 28px; }
.form-wrap h2 { margin: 0; color: #102019; font-size: 28px; letter-spacing: -.026em; }
.form-wrap header p { margin: 10px 0 0; color: var(--muted); font-size: 14px; line-height: 1.6; }

.status { margin-bottom: 20px; padding: 12px 14px; color: #216e43; background: #effaf3; border: 1px solid #a7e1bf; border-radius: 9px; font-size: 13px; }
.field { margin-bottom: 19px; }
.field > label { display: block; margin-bottom: 8px; color: #35443d; font-size: 12px; font-weight: 720; }
.input-wrap { position: relative; }
.input-wrap > svg { position: absolute; top: 50%; left: 14px; width: 18px; height: 18px; fill: none; stroke: #8d9c95; stroke-width: 2; transform: translateY(-50%); pointer-events: none; }

.input-wrap input {
    width: 100%;
    height: 49px;
    padding: 0 46px;
    color: #1d2d26;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 9px;
    outline: 0;
    font: inherit;
    transition: border-color .18s ease, box-shadow .18s ease;
}

.input-wrap input:focus { border-color: #4b9975; box-shadow: 0 0 0 4px rgba(39, 142, 99, .12); }
.input-wrap input.invalid { border-color: #d57873; }

.password-toggle {
    position: absolute;
    top: 50%;
    right: 8px;
    width: 35px;
    height: 35px;
    color: #697a72;
    background: transparent;
    border: 0;
    border-radius: 7px;
    font-size: 17px;
    cursor: pointer;
    transform: translateY(-50%);
}
.password-toggle:hover { color: var(--primary); background: #f0f7f3; }
.error { margin: 7px 0 0; color: var(--danger); font-size: 12px; }

.options { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin: 1px 0 25px; font-size: 12px; }
.remember { display: flex; align-items: center; gap: 8px; color: #53635b; }
.remember input { width: 16px; height: 16px; accent-color: var(--primary); }
.options a { color: var(--primary); font-weight: 700; text-decoration: none; }

.submit {
    width: 100%;
    height: 49px;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), #1d7551);
    border: 0;
    border-radius: 9px;
    box-shadow: 0 10px 24px rgba(23, 96, 68, .22);
    font: inherit;
    font-weight: 730;
    cursor: pointer;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.submit span { margin-left: 8px; font-size: 18px; }
.submit:hover { background: linear-gradient(135deg, var(--primary-hover), var(--primary)); box-shadow: 0 13px 27px rgba(23, 96, 68, .27); transform: translateY(-1px); }
.security { margin: 25px 0 0; color: #83928b; font-size: 11px; text-align: center; }

@media (min-width: 761px) {
    .login-shell { grid-template-columns: minmax(380px, 39%) 1fr; }
    .brand-panel { padding-right: clamp(30px, 3.5vw, 54px); padding-left: clamp(30px, 3.5vw, 54px); }
    .brand-content h1 { font-size: clamp(32px, 3vw, 46px); }
}

@media (max-width: 1020px) {
    .login-shell { grid-template-columns: 42% 1fr; }
    .brand-content h1 { font-size: 36px; }
    .form-panel { padding: 28px; }
}

@media (max-width: 760px) {
    .login-shell { display: block; }
    .brand-panel { display: none; }
    .form-panel { min-height: 100vh; padding: 25px 20px; }
    .form-panel::before { display: none; }
    .form-wrap { padding: 29px 24px; }
    .mobile-logo { display: block; width: 205px; margin: 0 auto 31px; padding: 17px; background: var(--forest); border-radius: 13px; }
    .form-wrap header { text-align: center; }
}

@media (max-width: 420px) {
    .options { align-items: flex-start; flex-direction: column; gap: 12px; }
    .form-wrap h2 { font-size: 25px; }
}

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