:root {
    --pk-login-green: #1b8f5a;
    --pk-login-green-dark: #0f5f3d;
    --pk-login-green-light: #e8f7ef;
    --pk-login-ink: #0f172a;
    --pk-login-muted: #64748b;
    --pk-login-border: #e2e8f0;
    --pk-login-surface: #ffffff;
    --pk-login-shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body.pk-login-body {
    height: 100%;
    margin: 0;
}

.pk-login-body {
    background: #f8fafc;
    color: var(--pk-login-ink);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.pk-login-shell {
    display: flex;
    min-height: 100vh;
}

.pk-login-brand {
    background-color: var(--pk-login-green-dark);
    background-image: var(--pk-login-backdrop);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    color: #fff;
    display: flex;
    flex: 1 1 52%;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    padding: 48px 56px;
    position: relative;
}

.pk-login-brand::before {
    background:
        radial-gradient(circle at top right, rgba(255, 255, 255, 0.1), transparent 40%),
        linear-gradient(145deg, rgba(15, 95, 61, 0.9) 0%, rgba(27, 143, 90, 0.84) 50%, rgba(15, 95, 61, 0.88) 100%);
    content: "";
    inset: 0;
    pointer-events: none;
    position: absolute;
    z-index: 0;
}

.pk-login-brand::after {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 28px 28px;
    content: "";
    inset: 0;
    opacity: 0.25;
    pointer-events: none;
    position: absolute;
    z-index: 0;
}

.pk-login-brand > * {
    position: relative;
    z-index: 1;
}

.pk-login-brand-logo {
    display: block;
    max-height: 72px;
    max-width: 220px;
    width: auto;
}

.pk-login-brand-fallback {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.pk-login-brand-copy h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.1;
    margin: 0 0 16px;
}

.pk-login-brand-copy p {
    color: rgba(255, 255, 255, 0.86);
    font-size: 1.05rem;
    line-height: 1.6;
    margin: 0 0 28px;
    max-width: 520px;
}

.pk-login-feature-list {
    display: grid;
    gap: 14px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.pk-login-feature-list li {
    align-items: center;
    color: rgba(255, 255, 255, 0.92);
    display: flex;
    font-size: 0.98rem;
    gap: 12px;
}

.pk-login-feature-list i {
    align-items: center;
    background: rgba(255, 255, 255, 0.14);
    border-radius: 999px;
    display: inline-flex;
    height: 34px;
    justify-content: center;
    width: 34px;
}

.pk-login-brand-footer {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.85rem;
}

.pk-login-panel {
    align-items: center;
    display: flex;
    flex: 1 1 48%;
    justify-content: center;
    padding: 32px 24px;
}

.pk-login-card {
    background: var(--pk-login-surface);
    border: 1px solid var(--pk-login-border);
    border-radius: 18px;
    box-shadow: var(--pk-login-shadow);
    max-width: 440px;
    padding: 36px 32px 28px;
    width: 100%;
}

.pk-login-card-logo {
    display: block;
    margin: 0 auto 18px;
    max-height: 56px;
    max-width: 180px;
    width: auto;
}

.pk-login-card h2 {
    font-size: 1.65rem;
    font-weight: 800;
    margin: 0 0 6px;
    text-align: center;
}

.pk-login-card-subtitle {
    color: var(--pk-login-muted);
    font-size: 0.95rem;
    margin: 0 0 24px;
    text-align: center;
}

.pk-login-alert {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 10px;
    color: #b91c1c;
    font-size: 0.92rem;
    margin-bottom: 18px;
    padding: 12px 14px;
}

.pk-login-field {
    margin-bottom: 18px;
}

.pk-login-field label {
    color: var(--pk-login-ink);
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.pk-login-input-wrap {
    align-items: stretch;
    display: flex;
    position: relative;
}

.pk-login-input-icon {
    align-items: center;
    background: #f8fafc;
    border: 1px solid var(--pk-login-border);
    border-radius: 10px 0 0 10px;
    color: var(--pk-login-muted);
    display: inline-flex;
    justify-content: center;
    min-width: 46px;
}

.pk-login-input {
    border: 1px solid var(--pk-login-border);
    border-left: 0;
    border-radius: 0 10px 10px 0;
    flex: 1 1 auto;
    font-size: 0.98rem;
    min-height: 46px;
    outline: none;
    padding: 0 14px;
    width: 100%;
}

.pk-login-input-wrap.has-toggle .pk-login-input {
    border-radius: 0;
    padding-right: 44px;
}

.pk-login-input-wrap.has-toggle .pk-login-input-icon + .pk-login-input {
    border-right: 0;
}

.pk-login-input-wrap.has-toggle .pk-login-toggle {
    align-items: center;
    background: #f8fafc;
    border: 1px solid var(--pk-login-border);
    border-left: 0;
    border-radius: 0 10px 10px 0;
    color: var(--pk-login-muted);
    cursor: pointer;
    display: inline-flex;
    justify-content: center;
    min-width: 46px;
}

.pk-login-input:focus {
    border-color: var(--pk-login-green);
    box-shadow: 0 0 0 3px rgba(27, 143, 90, 0.14);
}

.pk-login-input.is-invalid,
.pk-login-input-wrap.is-invalid .pk-login-input,
.pk-login-input-wrap.is-invalid .pk-login-input-icon,
.pk-login-input-wrap.is-invalid .pk-login-toggle {
    border-color: #ef4444;
}

.pk-login-error {
    color: #dc2626;
    display: block;
    font-size: 0.82rem;
    margin-top: 6px;
}

.pk-login-options {
    align-items: center;
    display: flex;
    gap: 12px;
    justify-content: space-between;
    margin-bottom: 22px;
}

.pk-login-remember {
    align-items: center;
    color: var(--pk-login-muted);
    display: inline-flex;
    font-size: 0.9rem;
    gap: 8px;
    margin: 0;
}

.pk-login-remember input {
    accent-color: var(--pk-login-green);
}

.pk-login-forgot {
    color: var(--pk-login-green);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
}

.pk-login-forgot:hover {
    color: var(--pk-login-green-dark);
    text-decoration: underline;
}

.pk-login-submit {
    align-items: center;
    background: linear-gradient(135deg, var(--pk-login-green-dark), var(--pk-login-green));
    border: 0;
    border-radius: 12px;
    color: #fff;
    cursor: pointer;
    display: inline-flex;
    font-size: 1rem;
    font-weight: 700;
    gap: 10px;
    justify-content: center;
    min-height: 48px;
    transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
    width: 100%;
}

.pk-login-submit:hover:not(:disabled) {
    box-shadow: 0 12px 24px rgba(27, 143, 90, 0.28);
    transform: translateY(-1px);
}

.pk-login-submit:disabled {
    cursor: wait;
    opacity: 0.78;
}

.pk-login-submit-spinner {
    animation: pkLoginSpin 0.8s linear infinite;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    border-top-color: #fff;
    display: none;
    height: 16px;
    width: 16px;
}

.pk-login-submit.is-loading .pk-login-submit-spinner {
    display: inline-block;
}

.pk-login-card-footer {
    border-top: 1px solid var(--pk-login-border);
    color: var(--pk-login-muted);
    font-size: 0.82rem;
    margin-top: 22px;
    padding-top: 16px;
    text-align: center;
}

.pk-login-classic-link {
    color: var(--pk-login-muted);
    display: inline-block;
    font-size: 0.8rem;
    margin-top: 10px;
    text-decoration: none;
}

.pk-login-classic-link:hover {
    color: var(--pk-login-green);
    text-decoration: underline;
}

@keyframes pkLoginSpin {
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 991px) {
    .pk-login-shell {
        flex-direction: column;
    }

    .pk-login-brand {
        flex: none;
        min-height: auto;
        padding: 32px 24px;
    }

    .pk-login-brand-copy h1 {
        font-size: 1.8rem;
    }

    .pk-login-feature-list {
        display: none;
    }

    .pk-login-panel {
        margin-top: -18px;
        padding: 0 16px 24px;
    }

    .pk-login-card {
        padding: 28px 22px 22px;
    }
}

@media (max-width: 575px) {
    .pk-login-options {
        align-items: flex-start;
        flex-direction: column;
    }
}