/* Modern login — single background image with centered glassmorphism card */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
    min-height: 100vh;
    background: #1e3a8a;
}

/* Background image — natural size, scrollable, lightly tinted */
.login-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 0;
}

.login-bg img {
    width: 100%;
    height: auto;
    display: block;
}

.login-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.3) 0%, rgba(15, 23, 42, 0.12) 40%, rgba(15, 23, 42, 0.12) 60%, rgba(15, 23, 42, 0.3) 100%);
}

/* Fixed centered glassmorphism login card — stays in place while image scrolls behind */
.login-card {
    position: fixed;
    z-index: 1;
    width: 440px;
    max-width: calc(100vw - 2rem);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-radius: 1.5rem;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
}

/* Header */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 1.75rem;
    font-weight: 800;
    color: #ffffff;
    margin: 0 0 0.5rem 0;
    line-height: 1.2;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.login-header .app-name {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    margin: 0;
}

.login-header .app-version {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 0.25rem;
    margin-bottom: 0;
}

/* Error box */
.error-box {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(248, 113, 113, 0.6);
    color: #fff;
    padding: 0.875rem 1rem;
    border-radius: 0.75rem;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Info box (session expired) */
.info-box {
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(96, 165, 250, 0.6);
    color: #fff;
    padding: 0.875rem 1rem;
    border-radius: 0.75rem;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Form */
.form-group {
    margin-bottom: 1.25rem;
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.5rem;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.1rem;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.875rem 2.75rem 0.875rem 2.75rem;
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    border-radius: 0.75rem;
    font-size: 1rem;
    outline: none;
    transition: all 0.2s;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

input[type="text"]::placeholder,
input[type="password"]::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

input[type="text"]:focus,
input[type="password"]:focus {
    border-color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.25);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.15);
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    font-size: 1.1rem;
    user-select: none;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.password-toggle:hover {
    opacity: 1;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.flex-items {
    display: flex;
    align-items: center;
}

.ml-2 {
    margin-left: 0.5rem;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.85);
}

input[type="checkbox"] {
    border: 1px solid #d1d5db;
    border-radius: 0.25rem;
    width: 1rem;
    height: 1rem;
    cursor: pointer;
}

.btn-primary {
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    color: #1e3a8a;
    font-weight: 700;
    padding: 0.875rem;
    border: 1.5px solid rgba(255, 255, 255, 0.8);
    border-radius: 0.75rem;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover {
    background: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.link-blue {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
}

.link-blue:hover {
    color: #fff;
    text-decoration: underline;
}

/* Footer */
.login-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.25);
    text-align: center;
}

.default-login {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
    padding: 1rem;
    margin-bottom: 1rem;
}

.default-login p {
    margin: 0;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
}

.copyright {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 1rem;
}

.elder-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

.elder-link:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

code {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-family: monospace;
    font-size: 0.85em;
    color: #fff;
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 1.5rem;
        border-radius: 1rem;
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }
    .login-header h1 {
        font-size: 1.4rem;
    }
}