* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --border: #334155;
    --input-bg: #0f172a;
    --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.login-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background:
        radial-gradient(ellipse at top, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at bottom, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        var(--bg-primary);
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow);
}

.logo-section {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 1rem;
    padding: 12px;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    border-radius: 12px;
    color: white;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-section h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.logo-section .subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input {
    padding: 0.875rem 1rem;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    cursor: pointer;
}

.forgot-link {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

.forgot-link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.login-btn {
    padding: 0.875rem 1.5rem;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    margin-top: 0.5rem;
}

.login-btn:hover {
    background: var(--accent-hover);
}

.login-btn:active {
    transform: scale(0.98);
}

.login-footer {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.login-footer p {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.page-footer {
    margin-top: 2rem;
    text-align: center;
}

.page-footer p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

@media (max-width: 480px) {
    .login-card {
        padding: 1.5rem;
    }

    .logo-section h1 {
        font-size: 1.25rem;
    }

    .form-options {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }
}