/* ============================================================
 * Login — Dark + Gold (v5 tokens 기반, v4 login 디자인과 동일)
 * ============================================================ */

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

body {
    font-family: var(--font-sans);
    background: var(--header-bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--header-text);
}

.login-container {
    background: #2C3136;
    border: 1px solid var(--header-border);
    border-radius: var(--radius-card);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    width: 100%;
    max-width: 440px;
    padding: 48px 40px 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 36px;
}

.login-logo {
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    border-radius: var(--radius-card);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 4px 12px rgba(240, 173, 78, 0.35);
}

.login-logo svg,
.login-logo i {
    width: 32px;
    height: 32px;
    color: var(--header-bg);
}

.login-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--header-text);
    margin-bottom: 8px;
}

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

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

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--header-text-muted);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--header-border);
    border-radius: var(--radius-input);
    font-size: 15px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--header-text);
    transition: all 0.2s;
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(240, 173, 78, 0.2);
    background: rgba(255, 255, 255, 0.06);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.form-checkbox label {
    font-size: 14px;
    color: var(--header-text);
    cursor: pointer;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: var(--color-primary);
    color: var(--header-bg);
    border: none;
    border-radius: var(--radius-button);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(240, 173, 78, 0.3);
}

.btn-login:hover {
    background: var(--primary-hover);
    box-shadow: 0 6px 16px rgba(240, 173, 78, 0.4);
}

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

.btn-login:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.login-divider {
    text-align: center;
    margin: 24px 0;
    position: relative;
}

.login-divider::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background: var(--header-border);
}

.login-divider span {
    background: #2C3136;
    padding: 0 16px;
    position: relative;
    font-size: 13px;
    color: var(--header-text-muted);
}

.btn-dev-login {
    width: 100%;
    padding: 12px;
    background: transparent;
    color: var(--header-text-muted);
    border: 1px solid var(--header-border);
    border-radius: var(--radius-button);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-dev-login:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(240, 173, 78, 0.08);
}

.btn-dev-login svg {
    width: 16px;
    height: 16px;
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-input);
    margin-bottom: 20px;
    font-size: 14px;
    border: 1px solid;
}

.alert-error,
.alert-danger {
    background: rgba(255, 45, 85, 0.12);
    color: #FF8A9B;
    border-color: rgba(255, 45, 85, 0.4);
}

.alert-success {
    background: rgba(52, 199, 89, 0.12);
    color: #6FDB8A;
    border-color: rgba(52, 199, 89, 0.4);
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--header-border);
}

.login-footer a {
    color: var(--header-text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.login-footer a:hover {
    color: var(--color-primary);
}

.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--header-bg);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: 8px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}