:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --bg: #0f172a;
    --card: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --border: #e2e8f0;
    --error: #ef4444;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: radial-gradient(circle at top, rgba(79, 70, 229, 0.25), transparent 45%), #0f172a;
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-wrapper {
    width: 100%;
    padding: 24px;
}

.login-card {
    background: var(--card);
    border-radius: 18px;
    padding: 32px;
    max-width: 420px;
    margin: 0 auto;
    box-shadow: 0 24px 80px rgba(15, 23, 42, 0.35);
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.login-header {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.login-logo {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--primary), #0ea5e9);
    display: grid;
    place-items: center;
    color: #fff;
    font-weight: 700;
    font-size: 18px;
}

.login-header h1 {
    font-size: 24px;
    color: var(--text);
}

.login-header p {
    color: var(--muted);
    font-size: 14px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.login-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.login-field input {
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.login-field input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.18);
}

.login-btn {
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 10px;
    padding: 12px 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(79, 70, 229, 0.25);
}

.login-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.login-error {
    min-height: 18px;
    font-size: 13px;
    color: var(--error);
}

.login-footer {
    text-align: center;
    font-size: 13px;
}

.login-footer a {
    color: var(--primary-dark);
    text-decoration: none;
}

.login-footer a:hover {
    text-decoration: underline;
}