/* ============================================
   Authorization Service - Login Page
   Matches registry-app look & feel.
   ============================================ */

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

:root {
    --ig-indigo: #3730a3;
    --ig-indigo-light: #6366f1;
    --ig-indigo-dark: #1e1b4b;
}

body {
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f9fafb;
    color: #111827;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---- Header ---- */

.login-header-bar {
    position: sticky;
    top: 0;
    z-index: 40;
    border-bottom: 1px solid #e5e7eb;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.login-header-inner {
    max-width: 80rem;
    margin: 0 auto;
    display: flex;
    align-items: center;
    height: 3.5rem;
    padding: 0 1rem;
}

.login-header-inner a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: inherit;
}

.login-header-inner img {
    height: 2rem;
    width: 2rem;
}

.login-header-inner span {
    font-size: 1rem;
    font-weight: 600;
    color: #111827;
}

/* ---- Main content ---- */

.login-container {
    flex: 1;
    display: flex;
    justify-content: center;
    padding: 4rem 1rem 2rem;
}

@media (min-width: 640px) {
    .login-container {
        padding-top: 6rem;
    }
}

.login-card {
    width: 100%;
    max-width: 28rem;
}

/* ---- Card header ---- */

.login-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
    line-height: 1.25;
}

.login-header p {
    font-size: 0.875rem;
    color: #6b7280;
    margin-top: 0.25rem;
}

/* ---- Form ---- */

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.25rem;
}

.form-group input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    line-height: 1.25rem;
    color: #111827;
    background-color: #fff;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input:focus {
    border-color: var(--ig-indigo);
    box-shadow: 0 0 0 1px var(--ig-indigo);
}

.form-group input::placeholder {
    color: #9ca3af;
}

/* ---- Button ---- */

.btn-login {
    width: 100%;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #fff;
    background-color: var(--ig-indigo);
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    margin-top: 0.5rem;
    transition: background-color 0.15s;
}

.btn-login:hover {
    background-color: var(--ig-indigo-light);
}

.btn-login:focus-visible {
    outline: 2px solid var(--ig-indigo);
    outline-offset: 2px;
}

.btn-login:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ---- Alerts ---- */

.alert {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.alert-error {
    background-color: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-success {
    background-color: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}