* {
    box-sizing: border-box;
}

:root {
    --primary: #0f5f8f;
    --primary-dark: #083b5a;
    --accent: #1db7a6;
    --bg: #f4f8fb;
    --text: #17324d;
    --muted: #6f8193;
    --white: #ffffff;
    --danger: #b42318;
    --warning: #98690c;
    --success: #067647;
    --info: #075985;
}

body {
    margin: 0;
    font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
    background: linear-gradient(135deg, #eaf6fb 0%, #f7fbfd 45%, #eafaf7 100%);
    color: var(--text);
    min-height: 100vh;
}

.login-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.1fr .9fr;
}

.login-shell.single {
    grid-template-columns: 1fr;
}

.login-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px;
    background: radial-gradient(circle at top left, rgba(29,183,166,.28), transparent 32%), linear-gradient(145deg, var(--primary-dark), var(--primary));
    color: var(--white);
}

.brand-card {
    max-width: 560px;
}

.brand-logo, .mini-logo {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    font-weight: 900;
    font-size: 26px;
    background: rgba(255,255,255,.14);
    border: 1px solid rgba(255,255,255,.22);
    box-shadow: 0 24px 60px rgba(0,0,0,.15);
}

.mini-logo {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    border: none;
    width: 52px;
    height: 52px;
    font-size: 21px;
}

.eyebrow {
    margin: 28px 0 8px;
    text-transform: uppercase;
    letter-spacing: .12em;
    font-size: 12px;
    font-weight: 800;
    opacity: .78;
}

.brand-card h1 {
    margin: 0;
    font-size: clamp(38px, 6vw, 64px);
    letter-spacing: -1.5px;
}

.brand-text {
    font-size: 18px;
    line-height: 1.65;
    opacity: .88;
    max-width: 520px;
}

.brand-points {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.brand-points span {
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.18);
    font-size: 13px;
    font-weight: 700;
}

.login-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 36px;
}

.login-card {
    width: min(100%, 440px);
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(13, 74, 111, .08);
    border-radius: 28px;
    padding: 34px;
    box-shadow: 0 28px 80px rgba(15, 95, 143, .16);
}

.login-card.small {
    max-width: 420px;
}

.login-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
}

.login-header h2 {
    margin: 0;
    font-size: 28px;
    letter-spacing: -.6px;
}

.login-header p {
    margin: 4px 0 0;
    color: var(--muted);
}

.login-form label {
    display: block;
    margin: 16px 0 8px;
    font-size: 13px;
    font-weight: 800;
}

.login-form input[type="email"],
.login-form input[type="password"],
.login-form input[type="text"] {
    width: 100%;
    border: 1px solid #d8e4ee;
    border-radius: 14px;
    padding: 14px 15px;
    font-size: 15px;
    outline: none;
    transition: .2s;
    background: #fbfdff;
}

.login-form input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(29,183,166,.14);
}

.login-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 18px 0 22px;
    gap: 12px;
    font-size: 13px;
}

.check-row {
    display: flex !important;
    align-items: center;
    gap: 8px;
    margin: 0 !important;
    color: var(--muted);
}

.login-options a, .back-link {
    color: var(--primary);
    font-weight: 800;
    text-decoration: none;
}

button {
    width: 100%;
    border: 0;
    border-radius: 16px;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--white);
    font-size: 16px;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 16px 36px rgba(15,95,143,.22);
}

.login-footer {
    margin-top: 24px;
    text-align: center;
    color: var(--muted);
}

.alert {
    border-radius: 14px;
    padding: 13px 14px;
    margin: 0 0 14px;
    font-size: 14px;
    border: 1px solid transparent;
}

.alert-danger { background: #fff1f0; color: var(--danger); border-color: #ffd2cc; }
.alert-warning { background: #fffaeb; color: var(--warning); border-color: #fedf89; }
.alert-success { background: #ecfdf3; color: var(--success); border-color: #abefc6; }
.alert-info { background: #eff8ff; color: var(--info); border-color: #b2ddff; }

@media (max-width: 900px) {
    .login-shell { grid-template-columns: 1fr; }
    .login-brand { display: none; }
    .login-panel { padding: 24px; }
    .login-card { padding: 26px; border-radius: 22px; }
}