:root {
    --page-bg: #1f7a41;
    --page-bg-gradient: radial-gradient(circle at 20% 20%, #2bb673 0%, transparent 45%), linear-gradient(140deg, #0f5a2e 0%, #1f7a41 45%, #43b36b 100%);
    --card-bg: rgba(255, 255, 255, 0.22);
    --card-border: rgba(255, 255, 255, 0.35);
    --text-main: #f3fff7;
    --text-muted: rgba(234, 255, 241, 0.82);
    --form-panel-bg: rgba(10, 56, 29, 0.42);
    --form-panel-border: rgba(176, 255, 206, 0.26);
    --input-bg: rgba(245, 255, 249, 0.92);
    --input-border: rgba(74, 153, 104, 0.45);
    --input-focus: #9ef2b7;
    --danger: #c62828;
    --success: #b8ffd0;
}

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

body.login-page {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    color: var(--text-main);
    background: var(--page-bg);
    background-image: var(--page-bg-gradient);
}

.login-layout {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-card {
    width: min(430px, 100%);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 16px 36px rgba(4, 33, 16, 0.28);
    padding: 28px 24px;
}

.login-card__header {
    margin-bottom: 24px;
}

.login-card h1 {
    margin: 0;
    font-size: clamp(24px, 4vw, 30px);
    line-height: 1.2;
}

.login-card__subtitle {
    margin: 10px 0 0;
    color: var(--text-muted);
    font-size: 14px;
}

.login-form {
    display: grid;
    gap: 14px;
    margin-top: 6px;
    padding: 16px;
    border-radius: 14px;
    background: var(--form-panel-bg);
    border: 1px solid var(--form-panel-border);
}

.form-group {
    display: grid;
    gap: 8px;
}

.form-group label {
    color: #e9fff1;
    font-size: 14px;
    font-weight: 600;
}

.form-group input {
    width: 100%;
    border-radius: 10px;
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: #153823;
    padding: 12px 14px;
    font-size: 16px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input::placeholder {
    color: rgba(35, 84, 56, 0.62);
}

.form-group input:focus {
    outline: none;
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px rgba(158, 242, 183, 0.35);
}

.btn {
    border: 0;
    border-radius: 10px;
    padding: 12px 14px;
    font-size: 16px;
    font-weight: 700;
    color: #ffffff;
    cursor: pointer;
}

.btn--primary {
    background: linear-gradient(135deg, #9ef2b7 0%, #61d68e 100%);
    color: #0f3d1f;
    transition: transform 0.15s ease, filter 0.15s ease;
}

.btn--primary:hover {
    transform: translateY(-1px);
    filter: brightness(1.05);
}

.btn--primary:active {
    transform: translateY(0);
}

.message {
    margin: 14px 0 0;
    font-size: 14px;
    font-weight: 600;
}

.message--error {
    color: #ffb3b3;
}

.message--success {
    color: var(--success);
}

@media (max-width: 480px) {
    .login-layout {
        padding: 14px;
    }

    .login-card {
        padding: 24px 18px;
    }
}